Boston Tides August 2021 | Tide Charts & Tables | Boston Harbor, MA

Boston Tide Chart for (Sun) August 1, 2021

Boston tide chart for Sunday, August 1, 2021
Boston tides for Aug 1st, the sunrise is 5:37am-8:03pm and the tide times are L 12:05am 1'5" H 6:17am 8'5" L 12:20pm 1'9" H 6:39pm 9'2" .

Boston Tide Chart for (Mon) August 2, 2021

Boston tide chart for Monday, August 2, 2021
Boston tides for Aug 2nd, the sunrise is 5:38am-8:02pm and the tide times are L 1:00am 1'6" H 7:13am 8'2" L 1:11pm 2'0" H 7:30pm 9'1" .

Boston Tide Chart for (Tue) August 3, 2021

Boston tide chart for Tuesday, August 3, 2021
Boston tides for Aug 3rd, the sunrise is 5:39am-8:00pm and the tide times are L 1:56am 1'6" H 8:10am 8'1" L 2:04pm 2'1" H 8:22pm 9'3" .

Boston Tide Chart for (Wed) August 4, 2021

Boston tide chart for Wednesday, August 4, 2021
Boston tides for Aug 4th, the sunrise is 5:40am-7:59pm and the tide times are L 2:50am 1'4" H 9:04am 8'1" L 2:55pm 2'0" H 9:13pm 9'5" .

Boston Tide Chart for (Thu) August 5, 2021

Boston tide chart for Thursday, August 5, 2021
Boston tides for Aug 5th, the sunrise is 5:41am-7:58pm and the tide times are L 3:41am 1'1" H 9:56am 8'3" L 3:45pm 1'10" H 10:01pm 9'8" .

Boston Tide Chart for (Fri) August 6, 2021

Boston tide chart for Friday, August 6, 2021
Boston tides for Aug 6th, the sunrise is 5:42am-7:57pm and the tide times are L 4:28am 0'9" H 10:43am 8'6" L 4:31pm 1'6" H 10:47pm 9'11" .

Boston Tide Chart for (Sat) August 7, 2021

Boston tide chart for Saturday, August 7, 2021
Boston tides for Aug 7th, the sunrise is 5:43am-7:55pm and the tide times are L 5:11am 0'5" H 11:26am 8'9" L 5:16pm 1'3" H 11:31pm 10'3" .

Boston Tide Chart for (Sun) August 8, 2021

Boston tide chart for Sunday, August 8, 2021
Boston tides for Aug 8th, the sunrise is 5:44am-7:54pm and the tide times are L 5:53am 0'1" H 12:08pm 9'1" L 6:00pm 0'11" .

Boston Tide Chart for (Mon) August 9, 2021

Boston tide chart for Monday, August 9, 2021
Boston tides for Aug 9th, the sunrise is 5:45am-7:53pm and the tide times are H 12:13am 10'5" L 6:34am -0'1" H 12:48pm 9'4" L 6:43pm 0'7" .

Boston Tide Chart for (Tue) August 10, 2021

Boston tide chart for Tuesday, August 10, 2021
Boston tides for Aug 10th, the sunrise is 5:46am-7:52pm and the tide times are H 12:55am 10'7" L 7:15am -0'4" H 1:28pm 9'8" L 7:28pm 0'4" .

Boston Tide Chart for (Wed) August 11, 2021

Boston tide chart for Wednesday, August 11, 2021
Boston tides for Aug 11th, the sunrise is 5:47am-7:50pm and the tide times are H 1:38am 10'8" L 7:56am -0'5" H 2:09pm 10'0" L 8:13pm 0'1" .

Boston Tide Chart for (Thu) August 12, 2021

Boston tide chart for Thursday, August 12, 2021
Boston tides for Aug 12th, the sunrise is 5:48am-7:49pm and the tide times are H 2:23am 10'7" L 8:39am -0'5" H 2:52pm 10'3" L 9:01pm 0'0" .

Boston Tide Chart for (Fri) August 13, 2021

Boston tide chart for Friday, August 13, 2021
Boston tides for Aug 13th, the sunrise is 5:49am-7:47pm and the tide times are H 3:10am 10'5" L 9:25am -0'3" H 3:37pm 10'5" L 9:52pm -0'0" .

Boston Tide Chart for (Sat) August 14, 2021

Boston tide chart for Saturday, August 14, 2021
Boston tides for Aug 14th, the sunrise is 5:50am-7:46pm and the tide times are H 4:01am 10'1" L 10:13am -0'0" H 4:27pm 10'6" L 10:46pm -0'0" .

Boston Tide Chart for (Sun) August 15, 2021

Boston tide chart for Sunday, August 15, 2021
Boston tides for Aug 15th, the sunrise is 5:51am-7:44pm and the tide times are H 4:56am 9'9" L 11:05am 0'3" H 5:20pm 10'7" L 11:45pm 0'0" .

Boston Tide Chart for (Mon) August 16, 2021

Boston tide chart for Monday, August 16, 2021
Boston tides for Aug 16th, the sunrise is 5:52am-7:43pm and the tide times are H 5:55am 9'5" L 12:02pm 0'6" H 6:18pm 10'7" .

Boston Tide Chart for (Tue) August 17, 2021

Boston tide chart for Tuesday, August 17, 2021
Boston tides for Aug 17th, the sunrise is 5:53am-7:41pm and the tide times are L 12:46am 0'0" H 6:58am 9'2" L 1:02pm 0'9" H 7:18pm 10'8" .

Boston Tide Chart for (Wed) August 18, 2021

Boston tide chart for Wednesday, August 18, 2021
Boston tides for Aug 18th, the sunrise is 5:54am-7:40pm and the tide times are L 1:50am -0'0" H 8:03am 9'1" L 2:03pm 0'9" H 8:21pm 10'9" .

Boston Tide Chart for (Thu) August 19, 2021

Boston tide chart for Thursday, August 19, 2021
Boston tides for Aug 19th, the sunrise is 5:55am-7:38pm and the tide times are L 2:53am -0'2" H 9:08am 9'2" L 3:05pm 0'7" H 9:23pm 10'11" .

Boston Tide Chart for (Fri) August 20, 2021

Boston tide chart for Friday, August 20, 2021
Boston tides for Aug 20th, the sunrise is 5:56am-7:37pm and the tide times are L 3:52am -0'4" H 10:08am 9'5" L 4:03pm 0'5" H 10:21pm 11'0" .

Boston Tide Chart for (Sat) August 21, 2021

Boston tide chart for Saturday, August 21, 2021
Boston tides for Aug 21st, the sunrise is 5:58am-7:35pm and the tide times are L 4:48am -0'7" H 11:04am 9'8" L 4:58pm 0'2" H 11:16pm 11'2" .

Boston Tide Chart for (Sun) August 22, 2021

Boston tide chart for Sunday, August 22, 2021
Boston tides for Aug 22nd, the sunrise is 5:59am-7:34pm and the tide times are L 5:39am -0'8" H 11:54am 9'11" L 5:50pm 0'0" .

Boston Tide Chart for (Mon) August 23, 2021

Boston tide chart for Monday, August 23, 2021
Boston tides for Aug 23rd, the sunrise is 6:00am-7:32pm and the tide times are H 12:07am 11'1" L 6:26am -0'8" H 12:41pm 10'1" L 6:39pm -0'0" .

Boston Tide Chart for (Tue) August 24, 2021

Boston tide chart for Tuesday, August 24, 2021
Boston tides for Aug 24th, the sunrise is 6:01am-7:30pm and the tide times are H 12:55am 10'11" L 7:10am -0'6" H 1:25pm 10'1" L 7:26pm 0'0" .

Boston Tide Chart for (Wed) August 25, 2021

Boston tide chart for Wednesday, August 25, 2021
Boston tides for Aug 25th, the sunrise is 6:02am-7:29pm and the tide times are H 1:40am 10'7" L 7:53am -0'2" H 2:07pm 10'0" L 8:12pm 0'2" .

Boston Tide Chart for (Thu) August 26, 2021

Boston tide chart for Thursday, August 26, 2021
Boston tides for Aug 26th, the sunrise is 6:03am-7:27pm and the tide times are H 2:25am 10'2" L 8:35am 0'2" H 2:49pm 9'11" L 8:57pm 0'5" .

Boston Tide Chart for (Fri) August 27, 2021

Boston tide chart for Friday, August 27, 2021
Boston tides for Aug 27th, the sunrise is 6:04am-7:26pm and the tide times are H 3:09am 9'8" L 9:17am 0'8" H 3:31pm 9'8" L 9:43pm 0'9" .

Boston Tide Chart for (Sat) August 28, 2021

Boston tide chart for Saturday, August 28, 2021
Boston tides for Aug 28th, the sunrise is 6:05am-7:24pm and the tide times are H 3:56am 9'2" L 10:01am 1'2" H 4:15pm 9'5" L 10:31pm 1'1" .

Boston Tide Chart for (Sun) August 29, 2021

Boston tide chart for Sunday, August 29, 2021
Boston tides for Aug 29th, the sunrise is 6:06am-7:22pm and the tide times are H 4:45am 8'8" L 10:47am 1'7" H 5:02pm 9'2" L 11:23pm 1'5" .

Boston Tide Chart for (Mon) August 30, 2021

Boston tide chart for Monday, August 30, 2021
Boston tides for Aug 30th, the sunrise is 6:07am-7:21pm and the tide times are H 5:37am 8'3" L 11:36am 2'0" H 5:52pm 9'0" .

Boston Tide Chart for (Tue) August 31, 2021

Boston tide chart for Tuesday, August 31, 2021
Boston tides for Aug 31st, the sunrise is 6:08am-7:19pm and the tide times are L 12:17am 1'7" H 6:32am 8'0" L 12:29pm 2'3" H 6:46pm 8'11" .

Boston Tide Calendar | August 2021

Sun Mon Tue Wed Thu Fri Sat
Boston tide chart for Sunday, August 1, 2021
Boston tide chart for Monday, August 2, 2021
Boston tide chart for Tuesday, August 3, 2021
Boston tide chart for Wednesday, August 4, 2021
Boston tide chart for Thursday, August 5, 2021
Boston tide chart for Friday, August 6, 2021
Boston tide chart for Saturday, August 7, 2021
Boston tide chart for Sunday, August 8, 2021
Boston tide chart for Monday, August 9, 2021
Boston tide chart for Tuesday, August 10, 2021
Boston tide chart for Wednesday, August 11, 2021
Boston tide chart for Thursday, August 12, 2021
Boston tide chart for Friday, August 13, 2021
Boston tide chart for Saturday, August 14, 2021
Boston tide chart for Sunday, August 15, 2021
Boston tide chart for Monday, August 16, 2021
Boston tide chart for Tuesday, August 17, 2021
Boston tide chart for Wednesday, August 18, 2021
Boston tide chart for Thursday, August 19, 2021
Boston tide chart for Friday, August 20, 2021
Boston tide chart for Saturday, August 21, 2021
Boston tide chart for Sunday, August 22, 2021
Boston tide chart for Monday, August 23, 2021
Boston tide chart for Tuesday, August 24, 2021
Boston tide chart for Wednesday, August 25, 2021
Boston tide chart for Thursday, August 26, 2021
Boston tide chart for Friday, August 27, 2021
Boston tide chart for Saturday, August 28, 2021
Boston tide chart for Sunday, August 29, 2021
Boston tide chart for Monday, August 30, 2021
Boston tide chart for Tuesday, August 31, 2021
 

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Boston Tide Table for August 2021

View tide tables in a column-row format below, with a "diff" column to spot large tide height swings—great for anglers. Scroll down for a textual format, ideal for reading or sharing.

- diff Tides diff Tides diff Tides diff Tides diff Sun Moon
8/1 N/A L 1'5" 12:05AM 7'0" H 8'5" 6:17AM 6'8" L 1'9" 12:20PM 7'5" H 9'2" 6:39PM 7'7" 05:37-20:03 00:05-14:30
8/2 7'7" L 1'6" 1:00AM 6'8" H 8'2" 7:13AM 6'2" L 2'0" 1:11PM 7'1" H 9'1" 7:30PM 7'7" 05:38-20:02 00:32-15:32
8/3 7'7" L 1'6" 1:56AM 6'7" H 8'1" 8:10AM 6 L 2'1" 2:04PM 7'1" H 9'3" 8:22PM 7'10" 05:39-20:00 01:03-16:33
8/4 7'10" L 1'4" 2:50AM 6'9" H 8'1" 9:04AM 6'1" L 2'0" 2:55PM 7'4" H 9'5" 9:13PM 8'3" 05:40-19:59 01:40-17:31
8/5 8'3" L 1'1" 3:41AM 7'2" H 8'3" 9:56AM 6'5" L 1'10" 3:45PM 7'9" H 9'8" 10:01PM 8'10" 05:41-19:58 02:25-18:25
8/6 8'10" L 0'9" 4:28AM 7'8" H 8'6" 10:43AM 6'11" L 1'6" 4:31PM 8'4" H 9'11" 10:47PM 9'6" 05:42-19:57 03:18-19:13
8/7 9'6" L 0'5" 5:11AM 8'3" H 8'9" 11:26AM 7'6" L 1'3" 5:16PM 8'11" H 10'3" 11:31PM 10'1" 05:43-19:55 04:19-19:54
8/8 10'1" L 0'1" 5:53AM 8'11" H 9'1" 12:08PM 8'1" L 0'11" 6:00PM 9'6" - - - - 05:44-19:54 05:25-20:28
8/9 9'6" H 10'5" 12:13AM 10'7" L -0'1" 6:34AM 9'6" H 9'4" 12:48PM 8'9" L 0'7" 6:43PM 10'0" 05:45-19:53 06:33-20:58
8/10 10'0" H 10'7" 12:55AM 11 L -0'4" 7:15AM 10'0" H 9'8" 1:28PM 9'4" L 0'4" 7:28PM 10'4" 05:46-19:52 07:44-21:25
8/11 10'4" H 10'8" 1:38AM 11'2" L -0'5" 7:56AM 10'5" H 10'0" 2:09PM 9'10" L 0'1" 8:13PM 10'6" 05:47-19:50 08:54-21:50
8/12 10'6" H 10'7" 2:23AM 11'1" L -0'5" 8:39AM 10'8" H 10'3" 2:52PM 10'3" L 0'0" 9:01PM 10'5" 05:48-19:49 10:05-22:14
8/13 10'5" H 10'5" 3:10AM 10'8" L -0'3" 9:25AM 10'8" H 10'5" 3:37PM 10'5" L -0'0" 9:52PM 10'2" 05:49-19:47 11:16-22:40
8/14 10'2" H 10'1" 4:01AM 10'2" L -0'0" 10:13AM 10'7" H 10'6" 4:27PM 10'7" L -0'0" 10:46PM 9'9" 05:50-19:46 12:30-23:08
8/15 9'9" H 9'9" 4:56AM 9'6" L 0'3" 11:05AM 10'4" H 10'7" 5:20PM 10'6" L 0'0" 11:45PM 9'4" 05:51-19:44 13:44-23:41
8/16 9'4" H 9'5" 5:55AM 8'10" L 0'6" 12:02PM 10'0" H 10'7" 6:18PM 10'7" - - - - 05:52-19:43 15:00-00:00
8/17 10'7" L 0'0" 12:46AM 9'1" H 9'2" 6:58AM 8'5" L 0'9" 1:02PM 9'11" H 10'8" 7:18PM 10'8" 05:53-19:41 16:13-00:21
8/18 10'8" L -0'0" 1:50AM 9'1" H 9'1" 8:03AM 8'3" L 0'9" 2:03PM 9'11" H 10'9" 8:21PM 10'11" 05:54-19:40 17:20-01:11
8/19 10'11" L -0'2" 2:53AM 9'4" H 9'2" 9:08AM 8'6" L 0'7" 3:05PM 10'3" H 10'11" 9:23PM 11'4" 05:55-19:38 18:17-02:11
8/20 11'4" L -0'4" 3:52AM 9'10" H 9'5" 10:08AM 9 L 0'5" 4:03PM 10'7" H 11'0" 10:21PM 11'8" 05:56-19:37 19:03-03:19
8/21 11'8" L -0'7" 4:48AM 10'3" H 9'8" 11:04AM 9'6" L 0'2" 4:58PM 10'11" H 11'2" 11:16PM 11'10" 05:58-19:35 19:40-04:32
8/22 11'10" L -0'8" 5:39AM 10'7" H 9'11" 11:54AM 9'10" L 0'0" 5:50PM 11'1" - - - - 05:59-19:34 20:11-05:45
8/23 11'1" H 11'1" 12:07AM 11'9" L -0'8" 6:26AM 10'9" H 10'1" 12:41PM 10'1" L -0'0" 6:39PM 10'11" 06:00-19:32 20:37-06:56
8/24 10'11" H 10'11" 12:55AM 11'5" L -0'6" 7:10AM 10'7" H 10'1" 1:25PM 10'1" L 0'0" 7:26PM 10'7" 06:01-19:30 21:00-08:04
8/25 10'7" H 10'7" 1:40AM 10'9" L -0'2" 7:53AM 10'3" H 10'0" 2:07PM 9'10" L 0'2" 8:12PM 10 06:02-19:29 21:21-09:09
8/26 10 H 10'2" 2:25AM 9'11" L 0'2" 8:35AM 9'8" H 9'11" 2:49PM 9'5" L 0'5" 8:57PM 9'2" 06:03-19:27 21:43-10:13
8/27 9'2" H 9'8" 3:09AM 9'0" L 0'8" 9:17AM 9'0" H 9'8" 3:31PM 8'10" L 0'9" 9:43PM 8'4" 06:04-19:26 22:06-11:16
8/28 8'4" H 9'2" 3:56AM 8'0" L 1'2" 10:01AM 8'3" H 9'5" 4:15PM 8'4" L 1'1" 10:31PM 7'6" 06:05-19:24 22:31-12:18
8/29 7'6" H 8'8" 4:45AM 7'0" L 1'7" 10:47AM 7'6" H 9'2" 5:02PM 7'9" L 1'5" 11:23PM 6'10" 06:06-19:22 23:01-13:20
8/30 6'10" H 8'3" 5:37AM 6'3" L 2'0" 11:36AM 7'0" H 9'0" 5:52PM 7'5" - - - - 06:07-19:21 23:35-14:21
8/31 7'5" L 1'7" 12:17AM 6'5" H 8'0" 6:32AM 5'9" L 2'3" 12:29PM 6'8" H 8'11" 6:46PM N/A 06:08-19:19 00:00-15:21

Boston Textual Tide Table for August 2021


Aug 1st (Sun)
the sunrise is 5:37am-8:03pm and the tide times are L 12:05am 1'5" H 6:17am 8'5" L 12:20pm 1'9" H 6:39pm 9'2" .
Aug 2nd (Mon)
the sunrise is 5:38am-8:02pm and the tide times are L 1:00am 1'6" H 7:13am 8'2" L 1:11pm 2'0" H 7:30pm 9'1" .
Aug 3rd (Tue)
the sunrise is 5:39am-8:00pm and the tide times are L 1:56am 1'6" H 8:10am 8'1" L 2:04pm 2'1" H 8:22pm 9'3" .
Aug 4th (Wed)
the sunrise is 5:40am-7:59pm and the tide times are L 2:50am 1'4" H 9:04am 8'1" L 2:55pm 2'0" H 9:13pm 9'5" .
Aug 5th (Thu)
the sunrise is 5:41am-7:58pm and the tide times are L 3:41am 1'1" H 9:56am 8'3" L 3:45pm 1'10" H 10:01pm 9'8" .
Aug 6th (Fri)
the sunrise is 5:42am-7:57pm and the tide times are L 4:28am 0'9" H 10:43am 8'6" L 4:31pm 1'6" H 10:47pm 9'11" .
Aug 7th (Sat)
the sunrise is 5:43am-7:55pm and the tide times are L 5:11am 0'5" H 11:26am 8'9" L 5:16pm 1'3" H 11:31pm 10'3" .
Aug 8th (Sun)
the sunrise is 5:44am-7:54pm and the tide times are L 5:53am 0'1" H 12:08pm 9'1" L 6:00pm 0'11" .
Aug 9th (Mon)
the sunrise is 5:45am-7:53pm and the tide times are H 12:13am 10'5" L 6:34am -0'1" H 12:48pm 9'4" L 6:43pm 0'7" .
Aug 10th (Tue)
the sunrise is 5:46am-7:52pm and the tide times are H 12:55am 10'7" L 7:15am -0'4" H 1:28pm 9'8" L 7:28pm 0'4" .
Aug 11th (Wed)
the sunrise is 5:47am-7:50pm and the tide times are H 1:38am 10'8" L 7:56am -0'5" H 2:09pm 10'0" L 8:13pm 0'1" .
Aug 12th (Thu)
the sunrise is 5:48am-7:49pm and the tide times are H 2:23am 10'7" L 8:39am -0'5" H 2:52pm 10'3" L 9:01pm 0'0" .
Aug 13th (Fri)
the sunrise is 5:49am-7:47pm and the tide times are H 3:10am 10'5" L 9:25am -0'3" H 3:37pm 10'5" L 9:52pm -0'0" .
Aug 14th (Sat)
the sunrise is 5:50am-7:46pm and the tide times are H 4:01am 10'1" L 10:13am -0'0" H 4:27pm 10'6" L 10:46pm -0'0" .
Aug 15th (Sun)
the sunrise is 5:51am-7:44pm and the tide times are H 4:56am 9'9" L 11:05am 0'3" H 5:20pm 10'7" L 11:45pm 0'0" .
Aug 16th (Mon)
the sunrise is 5:52am-7:43pm and the tide times are H 5:55am 9'5" L 12:02pm 0'6" H 6:18pm 10'7" .
Aug 17th (Tue)
the sunrise is 5:53am-7:41pm and the tide times are L 12:46am 0'0" H 6:58am 9'2" L 1:02pm 0'9" H 7:18pm 10'8" .
Aug 18th (Wed)
the sunrise is 5:54am-7:40pm and the tide times are L 1:50am -0'0" H 8:03am 9'1" L 2:03pm 0'9" H 8:21pm 10'9" .
Aug 19th (Thu)
the sunrise is 5:55am-7:38pm and the tide times are L 2:53am -0'2" H 9:08am 9'2" L 3:05pm 0'7" H 9:23pm 10'11" .
Aug 20th (Fri)
the sunrise is 5:56am-7:37pm and the tide times are L 3:52am -0'4" H 10:08am 9'5" L 4:03pm 0'5" H 10:21pm 11'0" .
Aug 21st (Sat)
the sunrise is 5:58am-7:35pm and the tide times are L 4:48am -0'7" H 11:04am 9'8" L 4:58pm 0'2" H 11:16pm 11'2" .
Aug 22nd (Sun)
the sunrise is 5:59am-7:34pm and the tide times are L 5:39am -0'8" H 11:54am 9'11" L 5:50pm 0'0" .
Aug 23rd (Mon)
the sunrise is 6:00am-7:32pm and the tide times are H 12:07am 11'1" L 6:26am -0'8" H 12:41pm 10'1" L 6:39pm -0'0" .
Aug 24th (Tue)
the sunrise is 6:01am-7:30pm and the tide times are H 12:55am 10'11" L 7:10am -0'6" H 1:25pm 10'1" L 7:26pm 0'0" .
Aug 25th (Wed)
the sunrise is 6:02am-7:29pm and the tide times are H 1:40am 10'7" L 7:53am -0'2" H 2:07pm 10'0" L 8:12pm 0'2" .
Aug 26th (Thu)
the sunrise is 6:03am-7:27pm and the tide times are H 2:25am 10'2" L 8:35am 0'2" H 2:49pm 9'11" L 8:57pm 0'5" .
Aug 27th (Fri)
the sunrise is 6:04am-7:26pm and the tide times are H 3:09am 9'8" L 9:17am 0'8" H 3:31pm 9'8" L 9:43pm 0'9" .
Aug 28th (Sat)
the sunrise is 6:05am-7:24pm and the tide times are H 3:56am 9'2" L 10:01am 1'2" H 4:15pm 9'5" L 10:31pm 1'1" .
Aug 29th (Sun)
the sunrise is 6:06am-7:22pm and the tide times are H 4:45am 8'8" L 10:47am 1'7" H 5:02pm 9'2" L 11:23pm 1'5" .
Aug 30th (Mon)
the sunrise is 6:07am-7:21pm and the tide times are H 5:37am 8'3" L 11:36am 2'0" H 5:52pm 9'0" .
Aug 31st (Tue)
the sunrise is 6:08am-7:19pm and the tide times are L 12:17am 1'7" H 6:32am 8'0" L 12:29pm 2'3" H 6:46pm 8'11" .

Massachusetts Tides Map

Tides map. Large blue pin with white center = this station. Small blue pin = other tide stations. Red pins = tidepools covered by this tide station.

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NOAA/NWS Forecast for Boston | Extreme Heat Watch

Last updated: June 28, 2026, 6:02 PM

Extreme Heat Watch

Extreme Heat Watch issued June 28 at 1:29PM EDT until July 3 at 8:00PM EDT by NWS Boston/Norton MA

* WHAT...Dangerously hot conditions with heat index values up to 110
possible.

* WHERE...Portions of northern Connecticut, central, eastern,
northeastern, southeastern, and western Massachusetts, and
northern and southern Rhode Island.

* WHEN...From Wednesday morning through Friday evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Effective: June 28, 2026, 5:29 PM

Expires: June 29, 2026, 12:00 PM

Marine Forecast (ANZ230)

ANZ230-291200-
Boston Harbor-
705 PM EDT Sun Jun 28 2026

.TONIGHT...S winds around 5 kt, becoming W after midnight. Waves
1 foot or less. Patchy fog after midnight with vsby 1 NM or less.
.MON...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. Patchy fog in the morning with vsby 1 NM or less.
.MON NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Waves 1 foot or less.
.TUE...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft
in the afternoon.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft. Showers likely.
.WED...SW winds 10 to 15 kt. Waves around 2 ft. A chance of
showers in the morning.
.WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft.
.THU AND THU NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.FRI AND FRI NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. A
chance of showers.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

Land Forecast (MAZ015)

TONIGHT: Partly cloudy this evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. South winds around 5 mph, becoming west around 5 mph after midnight.

MONDAY: Mostly sunny. Patchy fog in the morning. Highs in the upper 70s. North winds around 5 mph, becoming east in the afternoon.

MONDAY NIGHT: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph, becoming southwest after midnight.

TUESDAY: Mostly sunny. Warmer with highs around 90. Southwest winds around 5 mph, increasing to 10 to 15 mph in the afternoon.

TUESDAY NIGHT: Showers likely. Lows in the upper 60s. Southwest winds 10 to 15 mph. Chance of rain 70 percent.

WEDNESDAY: Partly sunny with a 40 percent chance of showers. Hot with highs in the mid 90s. Heat index values up to 105 in the afternoon.

WEDNESDAY NIGHT: Partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening.

THURSDAY AND THURSDAY NIGHT: Mostly clear. Hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 105.

FRIDAY AND FRIDAY NIGHT: Partly cloudy. A chance of showers. Hot. Highs in the upper 90s. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 105.

INDEPENDENCE DAY: Partly sunny with a chance of showers. Hot with highs around 90. Chance of rain 50 percent.

SATURDAY NIGHT: Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent.

SUNDAY: Partly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 40 percent.

Last updated: June 28, 2026, 6:02 PM

Boston (Guide)

Boston on Boston Harbor delivers excellent fishing for striped bass and bluefish and summer flounder and tautog from the waterfront or small boats with outgoing tides concentrating fish near the channels and structure for stronger bites. Public boat ramps at Boston Harbor and the city marinas provide convenient launches slips and fuel for harbor trips targeting black sea bass. Beaches at Boston Harbor waterfront parks and the adjacent Spectacle Island and Lovells Island deliver calm sand for family picnics swimming and light shore casting with city skyline views. The historic harbor city setting with easy access makes tide planning simple and rewarding.

DMF

Massachusetts Division of Marine Fisheries with current fishing regulations seasons bag size limits and area specific rules

Massachusetts State Parks

Massachusetts State Parks and beaches with coastal camping, reservations, day use fees, and excellent tidepooling

Boston Harbor Cruises and Waterfront (Other)

Public waterfront piers and departure points for harbor cruises whale watching tours and sightseeing boats offering short term docking observation of harbor activity and views of the skyline historic ships and Boston Harbor Islands. Tidal ranges influence water levels docking operations and timing of departures providing dynamic scenery for enjoying the working port from the piers. Convenient to downtown Boston it supports combining casual waterfront visits with tide watching and exploring this iconic New England harbor.

Boston Harbormaster Office (Other)

Official harbormaster for Boston Harbor managing mooring permits navigation safety transient docking regulations and harbor operations in this busy commercial recreational and historic port. Contact via VHF Channel 16 or phone for assistance with tide dependent access strong currents and rules affecting boating docking and activities in the inner harbor and approaches to Massachusetts Bay. Essential resource for boaters combining harbor coordination with tide monitoring and proximity to downtown Boston attractions.

Fan Pier Park and Waterfront (Other)

Public park and waterfront promenade along Boston Harbor in the Seaport District featuring grassy areas benches walking paths and direct access for shore relaxation picnics and low tide views of the harbor skyline and passing vessels. Tidal fluctuations reveal changing water levels and enhance scenic strolls photography and observation of marine traffic in this urban waterfront setting. Ample parking and proximity to restaurants museums and marinas make it a top spot for combining casual shore time with tide monitoring and enjoying Boston's modern harborfront.

Long Wharf and Custom House Waterfront (Other)

Historic public wharf and waterfront in downtown Boston offering pedestrian access short term docking viewing of tall ships and harbor activity with nearby attractions like the New England Aquarium Faneuil Hall and waterfront restaurants. Tidal cycles affect water levels along the wharf and enhance opportunities for observing the busy harbor from this central location. Convenient location supports combining waterfront strolls with tide watching and appreciating Boston's rich maritime history and scenic inner harbor.