Great Diamond Island Tides September 2025 | Tide Charts & Tables | Casco Bay, ME

Great Diamond Island Tide Chart for (Mon) September 1, 2025

Great Diamond Island tide chart for Monday, September 1, 2025
Great Diamond Island tides for Sep 1st, the sunrise is 6:04am-7:15pm and the tide times are L 12:07am 1'9" H 6:20am 7'4" L 12:10pm 2'4" H 6:30pm 8'5" .

Great Diamond Island Tide Chart for (Tue) September 2, 2025

Great Diamond Island tide chart for Tuesday, September 2, 2025
Great Diamond Island tides for Sep 2nd, the sunrise is 6:05am-7:13pm and the tide times are L 1:07am 1'9" H 7:21am 7'3" L 1:09pm 2'4" H 7:30pm 8'7" .

Great Diamond Island Tide Chart for (Wed) September 3, 2025

Great Diamond Island tide chart for Wednesday, September 3, 2025
Great Diamond Island tides for Sep 3rd, the sunrise is 6:06am-7:12pm and the tide times are L 2:06am 1'6" H 8:19am 7'6" L 2:07pm 2'1" H 8:26pm 8'10" .

Great Diamond Island Tide Chart for (Thu) September 4, 2025

Great Diamond Island tide chart for Thursday, September 4, 2025
Great Diamond Island tides for Sep 4th, the sunrise is 6:08am-7:10pm and the tide times are L 2:59am 1'2" H 9:12am 7'10" L 3:01pm 1'8" H 9:19pm 9'4" .

Great Diamond Island Tide Chart for (Fri) September 5, 2025

Great Diamond Island tide chart for Friday, September 5, 2025
Great Diamond Island tides for Sep 5th, the sunrise is 6:09am-7:08pm and the tide times are L 3:47am 0'8" H 9:58am 8'4" L 3:51pm 1'2" H 10:07pm 9'9" .

Great Diamond Island Tide Chart for (Sat) September 6, 2025

Great Diamond Island tide chart for Saturday, September 6, 2025
Great Diamond Island tides for Sep 6th, the sunrise is 6:10am-7:06pm and the tide times are L 4:30am 0'2" H 10:41am 8'11" L 4:37pm 0'6" H 10:52pm 10'2" .

Great Diamond Island Tide Chart for (Sun) September 7, 2025

Great Diamond Island tide chart for Sunday, September 7, 2025
Great Diamond Island tides for Sep 7th, the sunrise is 6:11am-7:05pm and the tide times are L 5:11am -0'3" H 11:22am 9'6" L 5:23pm -0'0" H 11:36pm 10'6" .

Great Diamond Island Tide Chart for (Mon) September 8, 2025

Great Diamond Island tide chart for Monday, September 8, 2025
Great Diamond Island tides for Sep 8th, the sunrise is 6:12am-7:03pm and the tide times are L 5:51am -0'7" H 12:03pm 10'1" L 6:08pm -0'6" .

Great Diamond Island Tide Chart for (Tue) September 9, 2025

Great Diamond Island tide chart for Tuesday, September 9, 2025
Great Diamond Island tides for Sep 9th, the sunrise is 6:13am-7:01pm and the tide times are H 12:22am 10'8" L 6:33am -0'9" H 12:45pm 10'6" L 6:55pm -0'10" .

Great Diamond Island Tide Chart for (Wed) September 10, 2025

Great Diamond Island tide chart for Wednesday, September 10, 2025
Great Diamond Island tides for Sep 10th, the sunrise is 6:14am-6:59pm and the tide times are H 1:08am 10'7" L 7:17am -0'9" H 1:29pm 10'9" L 7:44pm -0'11" .

Great Diamond Island Tide Chart for (Thu) September 11, 2025

Great Diamond Island tide chart for Thursday, September 11, 2025
Great Diamond Island tides for Sep 11th, the sunrise is 6:15am-6:57pm and the tide times are H 1:57am 10'4" L 8:02am -0'6" H 2:17pm 10'10" L 8:36pm -0'10" .

Great Diamond Island Tide Chart for (Fri) September 12, 2025

Great Diamond Island tide chart for Friday, September 12, 2025
Great Diamond Island tides for Sep 12th, the sunrise is 6:17am-6:56pm and the tide times are H 2:50am 9'11" L 8:52am -0'1" H 3:07pm 10'9" L 9:32pm -0'7" .

Great Diamond Island Tide Chart for (Sat) September 13, 2025

Great Diamond Island tide chart for Saturday, September 13, 2025
Great Diamond Island tides for Sep 13th, the sunrise is 6:18am-6:54pm and the tide times are H 3:46am 9'4" L 9:45am 0'4" H 4:03pm 10'5" L 10:32pm -0'2" .

Great Diamond Island Tide Chart for (Sun) September 14, 2025

Great Diamond Island tide chart for Sunday, September 14, 2025
Great Diamond Island tides for Sep 14th, the sunrise is 6:19am-6:52pm and the tide times are H 4:49am 8'10" L 10:45am 0'10" H 5:05pm 10'1" L 11:40pm 0'1" .

Great Diamond Island Tide Chart for (Mon) September 15, 2025

Great Diamond Island tide chart for Monday, September 15, 2025
Great Diamond Island tides for Sep 15th, the sunrise is 6:20am-6:50pm and the tide times are H 5:57am 8'6" L 11:52am 1'2" H 6:14pm 9'9" .

Great Diamond Island Tide Chart for (Tue) September 16, 2025

Great Diamond Island tide chart for Tuesday, September 16, 2025
Great Diamond Island tides for Sep 16th, the sunrise is 6:21am-6:48pm and the tide times are L 12:50am 0'4" H 7:09am 8'4" L 1:03pm 1'4" H 7:26pm 9'8" .

Great Diamond Island Tide Chart for (Wed) September 17, 2025

Great Diamond Island tide chart for Wednesday, September 17, 2025
Great Diamond Island tides for Sep 17th, the sunrise is 6:22am-6:46pm and the tide times are L 1:59am 0'4" H 8:17am 8'5" L 2:12pm 1'2" H 8:34pm 9'8" .

Great Diamond Island Tide Chart for (Thu) September 18, 2025

Great Diamond Island tide chart for Thursday, September 18, 2025
Great Diamond Island tides for Sep 18th, the sunrise is 6:23am-6:45pm and the tide times are L 3:02am 0'3" H 9:18am 8'9" L 3:15pm 0'11" H 9:34pm 9'10" .

Great Diamond Island Tide Chart for (Fri) September 19, 2025

Great Diamond Island tide chart for Friday, September 19, 2025
Great Diamond Island tides for Sep 19th, the sunrise is 6:24am-6:43pm and the tide times are L 3:56am 0'1" H 10:11am 9'1" L 4:09pm 0'7" H 10:26pm 9'11" .

Great Diamond Island Tide Chart for (Sat) September 20, 2025

Great Diamond Island tide chart for Saturday, September 20, 2025
Great Diamond Island tides for Sep 20th, the sunrise is 6:26am-6:41pm and the tide times are L 4:43am 0'0" H 10:56am 9'4" L 4:58pm 0'4" H 11:13pm 9'11" .

Great Diamond Island Tide Chart for (Sun) September 21, 2025

Great Diamond Island tide chart for Sunday, September 21, 2025
Great Diamond Island tides for Sep 21st, the sunrise is 6:27am-6:39pm and the tide times are L 5:26am 0'0" H 11:37am 9'6" L 5:41pm 0'2" H 11:55pm 9'10" .

Great Diamond Island Tide Chart for (Mon) September 22, 2025

Great Diamond Island tide chart for Monday, September 22, 2025
Great Diamond Island tides for Sep 22nd, the sunrise is 6:28am-6:37pm and the tide times are L 6:03am 0'2" H 12:14pm 9'7" L 6:22pm 0'1" .

Great Diamond Island Tide Chart for (Tue) September 23, 2025

Great Diamond Island tide chart for Tuesday, September 23, 2025
Great Diamond Island tides for Sep 23rd, the sunrise is 6:29am-6:35pm and the tide times are H 12:34am 9'7" L 6:39am 0'5" H 12:48pm 9'7" L 7:00pm 0'2" .

Great Diamond Island Tide Chart for (Wed) September 24, 2025

Great Diamond Island tide chart for Wednesday, September 24, 2025
Great Diamond Island tides for Sep 24th, the sunrise is 6:30am-6:34pm and the tide times are H 1:11am 9'3" L 7:13am 0'9" H 1:22pm 9'6" L 7:37pm 0'4" .

Great Diamond Island Tide Chart for (Thu) September 25, 2025

Great Diamond Island tide chart for Thursday, September 25, 2025
Great Diamond Island tides for Sep 25th, the sunrise is 6:31am-6:32pm and the tide times are H 1:48am 8'11" L 7:47am 1'1" H 1:56pm 9'4" L 8:15pm 0'7" .

Great Diamond Island Tide Chart for (Fri) September 26, 2025

Great Diamond Island tide chart for Friday, September 26, 2025
Great Diamond Island tides for Sep 26th, the sunrise is 6:32am-6:30pm and the tide times are H 2:27am 8'6" L 8:22am 1'5" H 2:33pm 9'2" L 8:55pm 0'10" .

Great Diamond Island Tide Chart for (Sat) September 27, 2025

Great Diamond Island tide chart for Saturday, September 27, 2025
Great Diamond Island tides for Sep 27th, the sunrise is 6:34am-6:28pm and the tide times are H 3:08am 8'2" L 9:01am 1'9" H 3:13pm 8'11" L 9:39pm 1'2" .

Great Diamond Island Tide Chart for (Sun) September 28, 2025

Great Diamond Island tide chart for Sunday, September 28, 2025
Great Diamond Island tides for Sep 28th, the sunrise is 6:35am-6:26pm and the tide times are H 3:54am 7'10" L 9:44am 2'1" H 3:58pm 8'8" L 10:28pm 1'5" .

Great Diamond Island Tide Chart for (Mon) September 29, 2025

Great Diamond Island tide chart for Monday, September 29, 2025
Great Diamond Island tides for Sep 29th, the sunrise is 6:36am-6:24pm and the tide times are H 4:44am 7'6" L 10:34am 2'4" H 4:50pm 8'6" L 11:23pm 1'8" .

Great Diamond Island Tide Chart for (Tue) September 30, 2025

Great Diamond Island tide chart for Tuesday, September 30, 2025
Great Diamond Island tides for Sep 30th, the sunrise is 6:37am-6:23pm and the tide times are H 5:40am 7'5" L 11:29am 2'5" H 5:48pm 8'5" .

Great Diamond Island Tide Calendar | September 2025

Sun Mon Tue Wed Thu Fri Sat
 
Great Diamond Island tide chart for Monday, September 1, 2025
Great Diamond Island tide chart for Tuesday, September 2, 2025
Great Diamond Island tide chart for Wednesday, September 3, 2025
Great Diamond Island tide chart for Thursday, September 4, 2025
Great Diamond Island tide chart for Friday, September 5, 2025
Great Diamond Island tide chart for Saturday, September 6, 2025
Great Diamond Island tide chart for Sunday, September 7, 2025
Great Diamond Island tide chart for Monday, September 8, 2025
Great Diamond Island tide chart for Tuesday, September 9, 2025
Great Diamond Island tide chart for Wednesday, September 10, 2025
Great Diamond Island tide chart for Thursday, September 11, 2025
Great Diamond Island tide chart for Friday, September 12, 2025
Great Diamond Island tide chart for Saturday, September 13, 2025
Great Diamond Island tide chart for Sunday, September 14, 2025
Great Diamond Island tide chart for Monday, September 15, 2025
Great Diamond Island tide chart for Tuesday, September 16, 2025
Great Diamond Island tide chart for Wednesday, September 17, 2025
Great Diamond Island tide chart for Thursday, September 18, 2025
Great Diamond Island tide chart for Friday, September 19, 2025
Great Diamond Island tide chart for Saturday, September 20, 2025
Great Diamond Island tide chart for Sunday, September 21, 2025
Great Diamond Island tide chart for Monday, September 22, 2025
Great Diamond Island tide chart for Tuesday, September 23, 2025
Great Diamond Island tide chart for Wednesday, September 24, 2025
Great Diamond Island tide chart for Thursday, September 25, 2025
Great Diamond Island tide chart for Friday, September 26, 2025
Great Diamond Island tide chart for Saturday, September 27, 2025
Great Diamond Island tide chart for Sunday, September 28, 2025
Great Diamond Island tide chart for Monday, September 29, 2025
Great Diamond Island tide chart for Tuesday, September 30, 2025
 

Restricted days available with membership — details below


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

Great Diamond Island Textual Tide Table for September 2025


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

Maine 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 Great Diamond Island | Beach Hazards Statement

Last updated: June 5, 2026, 6:01 AM

Beach Hazards Statement

Beach Hazards Statement issued June 5 at 8:56AM EDT until June 5 at 8:00PM EDT by NWS Gray ME

* WHAT...Warm air temperatures in the 80s may cause people to
underestimate the dangers of the cold water temperatures in the
low to mid 50s.

* WHERE...In Maine, Coastal York, Coastal Cumberland, Sagadahoc,
Lincoln, Knox and Coastal Waldo Counties. In New Hampshire,
Coastal Rockingham County.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...When the water temperature is below 60 degrees, the
average submerged person could lose dexterity within minutes and
be unable to accomplish simple tasks. Anyone on boats or
paddlecraft should use extreme caution to avoid this threat.

Effective: June 5, 2026, 12:56 PM

Expires: June 6, 2026, 12:00 AM

Marine Forecast (ANZ153)

ANZ153-060100-
Casco Bay-
802 AM EDT Fri Jun 5 2026

.TODAY...W winds around 5 kt, becoming SW late this morning, then
becoming S this afternoon. Seas 2 to 3 ft.
.TONIGHT...S winds around 5 kt, becoming E after midnight. Seas 2 to
3 ft.
.SAT...E winds around 5 kt, becoming SE in the afternoon. Seas 2 to
3 ft. A chance of showers in the afternoon.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.SUN...W winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to
20 kt in the afternoon. Seas 2 to 4 ft. Showers likely in the
morning, then showers with a chance of tstms in the afternoon.
.SUN NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Showers likely in the evening.
.MON...N winds 10 to 15 kt, becoming SE in the afternoon. Seas 2 to
3 ft.
.MON NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft.
.TUE...W winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft.
.TUE NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft in the evening, then 1 foot or less.

Winds and seas higher in and near tstms.

$$

Land Forecast (MEZ023)

TODAY: Partly sunny. Warm with highs in the upper 80s. Light and variable winds.

TONIGHT: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Light and variable winds.

SATURDAY: Partly sunny in the morning, then mostly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Light and variable winds. Chance of rain 50 percent.

SATURDAY NIGHT: Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows around 60. Light and variable winds. Chance of rain 40 percent.

SUNDAY: Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the upper 70s. West winds around 10 mph, becoming north with gusts up to 20 mph in the afternoon. Chance of rain 90 percent.

SUNDAY NIGHT: Showers likely in the evening. Lows in the lower 50s. Chance of rain 70 percent.

MONDAY: Mostly sunny. Highs in the mid 70s.

MONDAY NIGHT: Mostly clear. Lows in the mid 50s.

TUESDAY: Mostly sunny. Highs in the lower 80s.

TUESDAY NIGHT: Mostly clear. Lows in the upper 50s.

WEDNESDAY: Mostly sunny. Warm with highs in the mid 80s.

WEDNESDAY NIGHT: Partly cloudy. Lows in the lower 60s.

THURSDAY: Partly sunny. Warm with highs in the mid 80s.

Last updated: June 5, 2026, 6:01 AM

Great Diamond Island (Guide)

Great Diamond Island on Casco Bay delivers productive fishing for striped bass and bluefish and summer flounder from the island or small boats with lower tides revealing structure for better casting. Boat ramps at Great Diamond Island and the ferry area provide easy access for bay trips targeting black sea bass and tautog. Beaches at Great Diamond Island and the adjacent island shores offer calm sand for family picnics swimming and shore casting with island views. The private island setting with ferry access enhances enjoyable tide aware days.

DMR

Maine Department of Marine Resources with current fishing regulations seasons bag size limits and area specific rules

Maine State Parks

Maine State Parks and beaches with coastal camping, reservations, day use fees, and rocky shoreline tidepooling