Chelsea Tides September 2025 | Tide Charts & Tables | Boston Harbor, MA

Chelsea Tide Chart for (Mon) September 1, 2025

Chelsea tide chart for Monday, September 1, 2025
Chelsea tides for Sep 1st, the sunrise is 6:09am-7:17pm and the tide times are L 12:22am 1'9" H 6:32am 7'10" L 12:32pm 2'5" H 6:44pm 9'0" .

Chelsea Tide Chart for (Tue) September 2, 2025

Chelsea tide chart for Tuesday, September 2, 2025
Chelsea tides for Sep 2nd, the sunrise is 6:10am-7:15pm and the tide times are L 1:20am 1'9" H 7:30am 7'9" L 1:29pm 2'5" H 7:41pm 9'1" .

Chelsea Tide Chart for (Wed) September 3, 2025

Chelsea tide chart for Wednesday, September 3, 2025
Chelsea tides for Sep 3rd, the sunrise is 6:11am-7:13pm and the tide times are L 2:17am 1'6" H 8:27am 8'0" L 2:25pm 2'2" H 8:37pm 9'5" .

Chelsea Tide Chart for (Thu) September 4, 2025

Chelsea tide chart for Thursday, September 4, 2025
Chelsea tides for Sep 4th, the sunrise is 6:12am-7:12pm and the tide times are L 3:10am 1'1" H 9:20am 8'4" L 3:18pm 1'8" H 9:29pm 9'10" .

Chelsea Tide Chart for (Fri) September 5, 2025

Chelsea tide chart for Friday, September 5, 2025
Chelsea tides for Sep 5th, the sunrise is 6:13am-7:10pm and the tide times are L 3:59am 0'8" H 10:08am 8'11" L 4:09pm 1'1" H 10:18pm 10'4" .

Chelsea Tide Chart for (Sat) September 6, 2025

Chelsea tide chart for Saturday, September 6, 2025
Chelsea tides for Sep 6th, the sunrise is 6:14am-7:09pm and the tide times are L 4:45am 0'1" H 10:53am 9'6" L 4:57pm 0'6" H 11:05pm 10'9" .

Chelsea Tide Chart for (Sun) September 7, 2025

Chelsea tide chart for Sunday, September 7, 2025
Chelsea tides for Sep 7th, the sunrise is 6:15am-7:07pm and the tide times are L 5:29am -0'3" H 11:36am 10'1" L 5:44pm -0'1" H 11:51pm 11'1" .

Chelsea Tide Chart for (Mon) September 8, 2025

Chelsea tide chart for Monday, September 8, 2025
Chelsea tides for Sep 8th, the sunrise is 6:16am-7:05pm and the tide times are L 6:12am -0'7" H 12:18pm 10'8" L 6:31pm -0'7" .

Chelsea Tide Chart for (Tue) September 9, 2025

Chelsea tide chart for Tuesday, September 9, 2025
Chelsea tides for Sep 9th, the sunrise is 6:17am-7:03pm and the tide times are H 12:37am 11'2" L 6:55am -0'9" H 1:01pm 11'2" L 7:18pm -0'11" .

Chelsea Tide Chart for (Wed) September 10, 2025

Chelsea tide chart for Wednesday, September 10, 2025
Chelsea tides for Sep 10th, the sunrise is 6:19am-7:02pm and the tide times are H 1:25am 11'1" L 7:40am -0'9" H 1:45pm 11'5" L 8:07pm -1'1" .

Chelsea Tide Chart for (Thu) September 11, 2025

Chelsea tide chart for Thursday, September 11, 2025
Chelsea tides for Sep 11th, the sunrise is 6:20am-7:00pm and the tide times are H 2:14am 10'10" L 8:26am -0'6" H 2:32pm 11'6" L 8:59pm -1'0" .

Chelsea Tide Chart for (Fri) September 12, 2025

Chelsea tide chart for Friday, September 12, 2025
Chelsea tides for Sep 12th, the sunrise is 6:21am-6:58pm and the tide times are H 3:05am 10'5" L 9:15am -0'1" H 3:23pm 11'4" L 9:53pm -0'8" .

Chelsea Tide Chart for (Sat) September 13, 2025

Chelsea tide chart for Saturday, September 13, 2025
Chelsea tides for Sep 13th, the sunrise is 6:22am-6:56pm and the tide times are H 4:01am 9'10" L 10:08am 0'4" H 4:18pm 11'0" L 10:51pm -0'3" .

Chelsea Tide Chart for (Sun) September 14, 2025

Chelsea tide chart for Sunday, September 14, 2025
Chelsea tides for Sep 14th, the sunrise is 6:23am-6:55pm and the tide times are H 5:01am 9'4" L 11:06am 0'10" H 5:18pm 10'8" L 11:54pm 0'1" .

Chelsea Tide Chart for (Mon) September 15, 2025

Chelsea tide chart for Monday, September 15, 2025
Chelsea tides for Sep 15th, the sunrise is 6:24am-6:53pm and the tide times are H 6:07am 8'11" L 12:08pm 1'2" H 6:23pm 10'4" .

Chelsea Tide Chart for (Tue) September 16, 2025

Chelsea tide chart for Tuesday, September 16, 2025
Chelsea tides for Sep 16th, the sunrise is 6:25am-6:51pm and the tide times are L 1:01am 0'4" H 7:15am 8'9" L 1:14pm 1'4" H 7:31pm 10'2" .

Chelsea Tide Chart for (Wed) September 17, 2025

Chelsea tide chart for Wednesday, September 17, 2025
Chelsea tides for Sep 17th, the sunrise is 6:26am-6:49pm and the tide times are L 2:08am 0'5" H 8:23am 8'10" L 2:20pm 1'3" H 8:38pm 10'2" .

Chelsea Tide Chart for (Thu) September 18, 2025

Chelsea tide chart for Thursday, September 18, 2025
Chelsea tides for Sep 18th, the sunrise is 6:27am-6:48pm and the tide times are L 3:10am 0'4" H 9:24am 9'1" L 3:22pm 1'0" H 9:39pm 10'3" .

Chelsea Tide Chart for (Fri) September 19, 2025

Chelsea tide chart for Friday, September 19, 2025
Chelsea tides for Sep 19th, the sunrise is 6:28am-6:46pm and the tide times are L 4:05am 0'3" H 10:17am 9'6" L 4:17pm 0'8" H 10:32pm 10'4" .

Chelsea Tide Chart for (Sat) September 20, 2025

Chelsea tide chart for Saturday, September 20, 2025
Chelsea tides for Sep 20th, the sunrise is 6:29am-6:44pm and the tide times are L 4:52am 0'2" H 11:03am 9'9" L 5:06pm 0'5" H 11:19pm 10'4" .

Chelsea Tide Chart for (Sun) September 21, 2025

Chelsea tide chart for Sunday, September 21, 2025
Chelsea tides for Sep 21st, the sunrise is 6:30am-6:42pm and the tide times are L 5:34am 0'2" H 11:44am 10'0" L 5:51pm 0'3" .

Chelsea Tide Chart for (Mon) September 22, 2025

Chelsea tide chart for Monday, September 22, 2025
Chelsea tides for Sep 22nd, the sunrise is 6:31am-6:40pm and the tide times are H 12:01am 10'3" L 6:13am 0'3" H 12:21pm 10'1" L 6:32pm 0'2" .

Chelsea Tide Chart for (Tue) September 23, 2025

Chelsea tide chart for Tuesday, September 23, 2025
Chelsea tides for Sep 23rd, the sunrise is 6:32am-6:39pm and the tide times are H 12:41am 10'0" L 6:50am 0'6" H 12:56pm 10'2" L 7:12pm 0'2" .

Chelsea Tide Chart for (Wed) September 24, 2025

Chelsea tide chart for Wednesday, September 24, 2025
Chelsea tides for Sep 24th, the sunrise is 6:33am-6:37pm and the tide times are H 1:20am 9'9" L 7:27am 0'9" H 1:32pm 10'1" L 7:52pm 0'4" .

Chelsea Tide Chart for (Thu) September 25, 2025

Chelsea tide chart for Thursday, September 25, 2025
Chelsea tides for Sep 25th, the sunrise is 6:35am-6:35pm and the tide times are H 1:59am 9'5" L 8:04am 1'1" H 2:08pm 9'11" L 8:32pm 0'6" .

Chelsea Tide Chart for (Fri) September 26, 2025

Chelsea tide chart for Friday, September 26, 2025
Chelsea tides for Sep 26th, the sunrise is 6:36am-6:33pm and the tide times are H 2:39am 9'1" L 8:43am 1'5" H 2:47pm 9'8" L 9:15pm 0'10" .

Chelsea Tide Chart for (Sat) September 27, 2025

Chelsea tide chart for Saturday, September 27, 2025
Chelsea tides for Sep 27th, the sunrise is 6:37am-6:32pm and the tide times are H 3:22am 8'8" L 9:25am 1'9" H 3:30pm 9'5" L 10:00pm 1'2" .

Chelsea Tide Chart for (Sun) September 28, 2025

Chelsea tide chart for Sunday, September 28, 2025
Chelsea tides for Sep 28th, the sunrise is 6:38am-6:30pm and the tide times are H 4:09am 8'3" L 10:10am 2'1" H 4:17pm 9'2" L 10:49pm 1'6" .

Chelsea Tide Chart for (Mon) September 29, 2025

Chelsea tide chart for Monday, September 29, 2025
Chelsea tides for Sep 29th, the sunrise is 6:39am-6:28pm and the tide times are H 5:00am 8'0" L 11:00am 2'5" H 5:09pm 9'0" L 11:44pm 1'8" .

Chelsea Tide Chart for (Tue) September 30, 2025

Chelsea tide chart for Tuesday, September 30, 2025
Chelsea tides for Sep 30th, the sunrise is 6:40am-6:26pm and the tide times are H 5:56am 7'10" L 11:55am 2'6" H 6:05pm 9'0" .

Chelsea Tide Calendar | September 2025

Sun Mon Tue Wed Thu Fri Sat
 
 

Restricted days available with membership — details below


Chelsea Tide Table for September 2025

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

Chelsea Textual Tide Table for September 2025


Sep 1st (Mon)
the sunrise is 6:09am-7:17pm and the tide times are L 12:22am 1'9" H 6:32am 7'10" L 12:32pm 2'5" H 6:44pm 9'0" .
Sep 2nd (Tue)
the sunrise is 6:10am-7:15pm and the tide times are L 1:20am 1'9" H 7:30am 7'9" L 1:29pm 2'5" H 7:41pm 9'1" .
Sep 3rd (Wed)
the sunrise is 6:11am-7:13pm and the tide times are L 2:17am 1'6" H 8:27am 8'0" L 2:25pm 2'2" H 8:37pm 9'5" .
Sep 4th (Thu)
the sunrise is 6:12am-7:12pm and the tide times are L 3:10am 1'1" H 9:20am 8'4" L 3:18pm 1'8" H 9:29pm 9'10" .
Sep 5th (Fri)
the sunrise is 6:13am-7:10pm and the tide times are L 3:59am 0'8" H 10:08am 8'11" L 4:09pm 1'1" H 10:18pm 10'4" .
Sep 6th (Sat)
the sunrise is 6:14am-7:09pm and the tide times are L 4:45am 0'1" H 10:53am 9'6" L 4:57pm 0'6" H 11:05pm 10'9" .
Sep 7th (Sun)
the sunrise is 6:15am-7:07pm and the tide times are L 5:29am -0'3" H 11:36am 10'1" L 5:44pm -0'1" H 11:51pm 11'1" .
Sep 8th (Mon)
the sunrise is 6:16am-7:05pm and the tide times are L 6:12am -0'7" H 12:18pm 10'8" L 6:31pm -0'7" .
Sep 9th (Tue)
the sunrise is 6:17am-7:03pm and the tide times are H 12:37am 11'2" L 6:55am -0'9" H 1:01pm 11'2" L 7:18pm -0'11" .
Sep 10th (Wed)
the sunrise is 6:19am-7:02pm and the tide times are H 1:25am 11'1" L 7:40am -0'9" H 1:45pm 11'5" L 8:07pm -1'1" .
Sep 11th (Thu)
the sunrise is 6:20am-7:00pm and the tide times are H 2:14am 10'10" L 8:26am -0'6" H 2:32pm 11'6" L 8:59pm -1'0" .
Sep 12th (Fri)
the sunrise is 6:21am-6:58pm and the tide times are H 3:05am 10'5" L 9:15am -0'1" H 3:23pm 11'4" L 9:53pm -0'8" .
Sep 13th (Sat)
the sunrise is 6:22am-6:56pm and the tide times are H 4:01am 9'10" L 10:08am 0'4" H 4:18pm 11'0" L 10:51pm -0'3" .
Sep 14th (Sun)
the sunrise is 6:23am-6:55pm and the tide times are H 5:01am 9'4" L 11:06am 0'10" H 5:18pm 10'8" L 11:54pm 0'1" .
Sep 15th (Mon)
the sunrise is 6:24am-6:53pm and the tide times are H 6:07am 8'11" L 12:08pm 1'2" H 6:23pm 10'4" .
Sep 16th (Tue)
the sunrise is 6:25am-6:51pm and the tide times are L 1:01am 0'4" H 7:15am 8'9" L 1:14pm 1'4" H 7:31pm 10'2" .
Sep 17th (Wed)
the sunrise is 6:26am-6:49pm and the tide times are L 2:08am 0'5" H 8:23am 8'10" L 2:20pm 1'3" H 8:38pm 10'2" .
Sep 18th (Thu)
the sunrise is 6:27am-6:48pm and the tide times are L 3:10am 0'4" H 9:24am 9'1" L 3:22pm 1'0" H 9:39pm 10'3" .
Sep 19th (Fri)
the sunrise is 6:28am-6:46pm and the tide times are L 4:05am 0'3" H 10:17am 9'6" L 4:17pm 0'8" H 10:32pm 10'4" .
Sep 20th (Sat)
the sunrise is 6:29am-6:44pm and the tide times are L 4:52am 0'2" H 11:03am 9'9" L 5:06pm 0'5" H 11:19pm 10'4" .
Sep 21st (Sun)
the sunrise is 6:30am-6:42pm and the tide times are L 5:34am 0'2" H 11:44am 10'0" L 5:51pm 0'3" .
Sep 22nd (Mon)
the sunrise is 6:31am-6:40pm and the tide times are H 12:01am 10'3" L 6:13am 0'3" H 12:21pm 10'1" L 6:32pm 0'2" .
Sep 23rd (Tue)
the sunrise is 6:32am-6:39pm and the tide times are H 12:41am 10'0" L 6:50am 0'6" H 12:56pm 10'2" L 7:12pm 0'2" .
Sep 24th (Wed)
the sunrise is 6:33am-6:37pm and the tide times are H 1:20am 9'9" L 7:27am 0'9" H 1:32pm 10'1" L 7:52pm 0'4" .
Sep 25th (Thu)
the sunrise is 6:35am-6:35pm and the tide times are H 1:59am 9'5" L 8:04am 1'1" H 2:08pm 9'11" L 8:32pm 0'6" .
Sep 26th (Fri)
the sunrise is 6:36am-6:33pm and the tide times are H 2:39am 9'1" L 8:43am 1'5" H 2:47pm 9'8" L 9:15pm 0'10" .
Sep 27th (Sat)
the sunrise is 6:37am-6:32pm and the tide times are H 3:22am 8'8" L 9:25am 1'9" H 3:30pm 9'5" L 10:00pm 1'2" .
Sep 28th (Sun)
the sunrise is 6:38am-6:30pm and the tide times are H 4:09am 8'3" L 10:10am 2'1" H 4:17pm 9'2" L 10:49pm 1'6" .
Sep 29th (Mon)
the sunrise is 6:39am-6:28pm and the tide times are H 5:00am 8'0" L 11:00am 2'5" H 5:09pm 9'0" L 11:44pm 1'8" .
Sep 30th (Tue)
the sunrise is 6:40am-6:26pm and the tide times are H 5:56am 7'10" L 11:55am 2'6" H 6:05pm 9'0" .

Massachusetts Tides Map

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