Latest Tide Table

Tide Times for Castle Island, Boston Harbor

Lat Long: 42.33° N 71.02° W

Today's tide times for Castle Island, Boston Harbor, Massachusetts

The predicted tide times today on Friday 17 July 2026 for Castle Island, Boston Harbor are: first high tide at 1:45am, first low tide at 8:09am, second high tide at 2:24pm, second low tide at 8:25pm. Sunrise is at 5:22am and sunset is at 8:17pm.

Today's tide times for Castle Island, Boston Harbor: Friday 17 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 1:45 AM(Fri 17 July)11.5 ft (3.51 m)
Low Tide 8:09 AM(Fri 17 July)-1.16 ft (-0.35 m)
High Tide 2:24 PM(Fri 17 July)10.31 ft (3.14 m)
Low Tide 8:25 PM(Fri 17 July)-0.15 ft (-0.05 m)
Tide Datum: -
TideHigh
TideLow
Tide Rising
  • Wind Speed
    -
  • Swell
    —
  • Weather
High tide in:
Live Tide
Next Tide State HIGH TIDE in Castle Island, Boston Harbor is at
which is in from now.
Next Tide Falling LOW TIDE in Castle Island, Boston Harbor is at
which is in from now.
The tide is .Tide state rising
Local time:

Tide chart for Castle Island, Boston HarborShowing low and high tide times for the next 30 days at Castle Island, Boston Harbor. Tide Times are EDT (UTC -4.0hrs).

View Castle Island, Boston Harbor 7 Day Tide Chart Image.

Castle Island, Boston Harbor, Massachusetts Tide Chart including high and low tide times for the next 7 days
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Click Tap Expand to expand the day into detailed view, Click Tap any to view the height and time.

HIGH
(EDT)
LOW
(EDT)
Sun
Moon
Set
Rise
Wind

Friday, 17 Jul
18 Jul
19 Jul
20 Jul
21 Jul
22 Jul
23 Jul
24 Jul
25 Jul
26 Jul
27 Jul
28 Jul
29 Jul
30 Jul
31 Jul
1 Aug
2 Aug
3 Aug
4 Aug
5 Aug
6 Aug
7 Aug
8 Aug
9 Aug
10 Aug
11 Aug
12 Aug
13 Aug
14 Aug
AMPMSatSunMonTueWedThuFriSatSunMonTueWedThuFriSatSunMonTueWedThuFriSatSunMonTueWedThuFri
1:45AM3.51m
2:24PM3.14m
2:39AM3.36m
3:15PM3.13m
3:31AM3.18m
4:05PM3.09m
4:25AM2.98m
4:55PM3.02m
5:21AM2.78m
5:47PM2.94m
6:18AM2.62m
6:40PM2.88m
7:17AM2.49m
7:34PM2.84m
8:16AM2.43m
8:28PM2.83m
9:13AM2.42m
9:20PM2.86m
10:04AM2.45m
10:09PM2.91m
10:51AM2.51m
10:54PM2.97m
11:33AM2.58m
11:36PM3.03m
12:13PM2.65m
00:16AM3.07m
12:50PM2.73m
00:54AM3.09m
1:26PM2.81m
1:32AM3.09m
2:02PM2.88m
2:12AM3.07m
2:40PM2.95m
2:54AM3.02m
3:20PM3.02m
3:39AM2.94m
4:03PM3.07m
4:29AM2.85m
4:51PM3.10m
5:23AM2.75m
5:44PM3.13m
6:23AM2.68m
6:42PM3.16m
7:27AM2.65m
7:44PM3.21m
8:32AM2.68m
8:48PM3.29m
9:35AM2.76m
9:50PM3.38m
10:35AM2.89m
10:49PM3.45m
11:30AM3.01m
11:44PM3.49m
12:22PM3.12m
00:37AM3.47m
1:10PM3.19m
8:09AM-0.35m
8:25PM-0.05m
8:58AM-0.23m
9:19PM0.03m
9:47AM-0.07m
10:13PM0.13m
10:36AM0.11m
11:09PM0.23m
11:27AM0.30m
00:07AM0.33m
12:19PM0.45m
1:06AM0.39m
1:13PM0.57m
2:05AM0.41m
2:08PM0.63m
3:02AM0.40m
3:01PM0.64m
3:54AM0.35m
3:51PM0.60m
4:40AM0.29m
4:37PM0.54m
5:22AM0.22m
5:21PM0.47m
6:00AM0.15m
6:03PM0.40m
6:37AM0.09m
6:43PM0.33m
7:14AM0.04m
7:24PM0.27m
7:51AM0.02m
8:05PM0.22m
8:30AM0.02m
8:48PM0.18m
9:10AM0.05m
9:34PM0.15m
9:53AM0.10m
10:23PM0.13m
10:40AM0.18m
11:17PM0.13m
11:32AM0.25m
00:16AM0.12m
12:29PM0.31m
1:19AM0.09m
1:30PM0.32m
2:22AM0.02m
2:33PM0.28m
3:25AM-0.08m
3:35PM0.19m
4:23AM-0.19m
4:33PM0.07m
5:18AM-0.28m
5:30PM-0.04m
6:09AM-0.33m
6:23PM-0.12m
6:57AM-0.32m
7:14PM-0.14m
tide state
5:22AM
tide state
8:17PM
5:23AM
8:16PM
5:24AM
8:16PM
5:25AM
8:15PM
5:26AM
8:14PM
5:26AM
8:13PM
5:27AM
8:12PM
5:28AM
8:11PM
5:29AM
8:10PM
5:30AM
8:09PM
5:31AM
8:08PM
5:32AM
8:07PM
5:33AM
8:06PM
5:34AM
8:05PM
5:35AM
8:04PM
5:36AM
8:03PM
5:37AM
8:02PM
5:38AM
8:01PM
5:39AM
7:59PM
5:40AM
7:58PM
5:41AM
7:57PM
5:42AM
7:56PM
5:43AM
7:54PM
5:45AM
7:53PM
5:46AM
7:52PM
5:47AM
7:50PM
5:48AM
7:49PM
5:49AM
7:47PM
5:50AM
7:46PM
0.14% - (Waxing Crescent)
tide state
9:09AM
0.16% - (Waxing Crescent)
tide state
10:19PM
0.17% - (Waxing Crescent)
10:40PM
10:21AM
0.21% - (Waxing Crescent)
11:01PM
11:29AM
0.24% - (First Quarter)
11:22PM
12:36PM
0.28% - (First Quarter)
11:46PM
1:42PM
0.31% - (Waxing Gibbous)

2:47PM
0.35% - (Waxing Gibbous)
00:13AM
3:52PM
0.39% - (Waxing Gibbous)
00:46AM
4:53PM
0.42% - (Waxing Gibbous)
1:26AM
5:50PM
0.46% - (Waxing Gibbous)
2:14AM
6:40PM
0.49% - (Full Moon)
3:10AM
7:21PM
0.52% - (Full Moon)
4:12AM
7:56PM
0.56% - (Waning Gibbous)
5:17AM
8:24PM
0.59% - (Waning Gibbous)
6:24AM
8:48PM
0.63% - (Waning Gibbous)
7:30AM
9:10PM
0.66% - (Waning Gibbous)
8:37AM
9:30PM
0.7% - (Waning Gibbous)
9:43AM
9:50PM
0.73% - (Last Quarter)
10:51AM
10:11PM
0.77% - (Last Quarter)
12:02PM
10:35PM
0.8% - (Waning Crescent)
1:16PM
11:04PM
0.83% - (Waning Crescent)
2:32PM
11:42PM
0.86% - (Waning Crescent)
3:49PM

0.87% - (Waning Crescent)
4:59PM
00:30AM
0.91% - (Waning Crescent)
6:00PM
1:32AM
0.94% - (Waning Crescent)
6:48PM
2:45AM
0.98% - (New Moon)
7:25PM
4:05AM
1.01% - ()
7:55PM
5:26AM
0.03% - (Waxing Crescent)
8:20PM
6:44AM
0.07% - (Waxing Crescent)
8:42PM
7:58AM
15
NW
15
NW
10
NW
5
SW
20
SSW
25
NW
5
WNW
15
S
10
SW
15
W
10
SSW
10
WSW
5
NW
15
NE
25
N
10
WSW
20
SSW
25
SSW
10
WSW
clearclearclearclearclearclearpart cloudcloudpart cloudpart cloudclearcloudclearpart cloudcloudpart cloudclearlight raincloud

Castle Island, Boston Harbor tide chart key:

The tide chart above shows the height and times of high tide and low tide for Castle Island, Boston Harbor, Massachusetts. The red flashing dot shows the tide time right now. The grey shading corresponds to nighttime hours between sunset and sunrise at Castle Island, Boston Harbor.

Tide Times are EDT (UTC -4.0hrs). Last Spring High Tide at Castle Island, Boston Harbor was on Tue 14 Jul (height: 3.60m 11.8ft). Next high Spring Tide at Castle Island, Boston Harbor will be on Thu 30 Jul (height: 3.09m 10.1ft).

Castle Island, Boston Harbor tide chart key: The tide chart above shows the height and times of high tide and low tide for Castle Island, Boston Harbor, Massachusetts. The grey shading corresponds to nighttime hours between sunset and sunrise at Castle Island, Boston Harbor.

Tide Times are EDT (UTC -4.0hrs). Last Spring High Tide at Castle Island, Boston Harbor was on Tue 14 Jul (height: 3.60m 11.8ft). Next high Spring Tide at Castle Island, Boston Harbor will be on Thu 30 Jul (height: 3.09m 10.1ft).

Castle Island, Boston Harbor tide times for July and August

July and August Tide charts for Castle Island, Boston Harbor: The tide charts below show the height, time and date of high and low tides for the next 30 days.

Tide Times for Castle Island, Boston Harbor (tomorrow): Saturday 18 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 2:39 AM(Sat 18 July)11.04 ft (3.36 m)
Low Tide 8:58 AM(Sat 18 July)-0.76 ft (-0.23 m)
High Tide 3:15 PM(Sat 18 July)10.27 ft (3.13 m)
Low Tide 9:19 PM(Sat 18 July)0.09 ft (0.03 m)
tide stateSunrise: 5:23AMtide stateSunset: 8:16PMtide stateMoonrise:10:21AMtide stateMoonset:10:40PM

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Tide Times for Castle Island, Boston Harbor: Sunday 19 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 3:31 AM(Sun 19 July)10.44 ft (3.18 m)
Low Tide 9:47 AM(Sun 19 July)-0.24 ft (-0.07 m)
High Tide 4:05 PM(Sun 19 July)10.13 ft (3.09 m)
Low Tide10:13 PM(Sun 19 July)0.42 ft (0.13 m)
tide stateSunrise: 5:24AMtide stateSunset: 8:16PMtide stateMoonrise:11:29AMtide stateMoonset:11:01PM

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Tide Times for Castle Island, Boston Harbor: Monday 20 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 4:25 AM(Mon 20 July)9.78 ft (2.98 m)
Low Tide10:36 AM(Mon 20 July)0.37 ft (0.11 m)
High Tide 4:55 PM(Mon 20 July)9.91 ft (3.02 m)
Low Tide11:09 PM(Mon 20 July)0.77 ft (0.23 m)
tide stateSunrise: 5:25AMtide stateSunset: 8:15PMtide stateMoonrise:12:36PMtide stateMoonset:11:22PM

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Tide Times for Castle Island, Boston Harbor: Tuesday 21 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 5:21 AM(Tue 21 July)9.13 ft (2.78 m)
Low Tide11:27 AM(Tue 21 July)0.97 ft (0.3 m)
High Tide 5:47 PM(Tue 21 July)9.66 ft (2.94 m)
tide stateSunrise: 5:26AMtide stateSunset: 8:14PMtide stateMoonrise: 1:42PMtide stateMoonset:11:46PM

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Tide Times for Castle Island, Boston Harbor: Wednesday 22 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide00:07 AM(Wed 22 July)1.07 ft (0.33 m)
High Tide 6:18 AM(Wed 22 July)8.58 ft (2.62 m)
Low Tide12:19 PM(Wed 22 July)1.49 ft (0.45 m)
High Tide 6:40 PM(Wed 22 July)9.45 ft (2.88 m)
tide stateSunrise: 5:26AMtide stateSunset: 8:13PMtide stateMoonrise: 2:47PM

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Tide Times for Castle Island, Boston Harbor: Thursday 23 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 1:06 AM(Thu 23 July)1.28 ft (0.39 m)
High Tide 7:17 AM(Thu 23 July)8.18 ft (2.49 m)
Low Tide 1:13 PM(Thu 23 July)1.87 ft (0.57 m)
High Tide 7:34 PM(Thu 23 July)9.31 ft (2.84 m)
tide stateSunrise: 5:27AMtide stateSunset: 8:12PMtide stateMoonset:00:13AMtide stateMoonrise: 3:52PM

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Tide Times for Castle Island, Boston Harbor: Friday 24 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 2:05 AM(Fri 24 July)1.36 ft (0.41 m)
High Tide 8:16 AM(Fri 24 July)7.98 ft (2.43 m)
Low Tide 2:08 PM(Fri 24 July)2.07 ft (0.63 m)
High Tide 8:28 PM(Fri 24 July)9.29 ft (2.83 m)
tide stateSunrise: 5:28AMtide stateSunset: 8:11PMtide stateMoonset:00:46AMtide stateMoonrise: 4:53PM

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Tide Times for Castle Island, Boston Harbor: Saturday 25 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 3:02 AM(Sat 25 July)1.3 ft (0.4 m)
High Tide 9:13 AM(Sat 25 July)7.95 ft (2.42 m)
Low Tide 3:01 PM(Sat 25 July)2.09 ft (0.64 m)
High Tide 9:20 PM(Sat 25 July)9.37 ft (2.86 m)
tide stateSunrise: 5:29AMtide stateSunset: 8:10PMtide stateMoonset: 1:26AMtide stateMoonrise: 5:50PM

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Tide Times for Castle Island, Boston Harbor: Sunday 26 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 3:54 AM(Sun 26 July)1.15 ft (0.35 m)
High Tide10:04 AM(Sun 26 July)8.05 ft (2.45 m)
Low Tide 3:51 PM(Sun 26 July)1.98 ft (0.6 m)
High Tide10:09 PM(Sun 26 July)9.54 ft (2.91 m)
tide stateSunrise: 5:30AMtide stateSunset: 8:09PMtide stateMoonset: 2:14AMtide stateMoonrise: 6:40PM

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Tide Times for Castle Island, Boston Harbor: Monday 27 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 4:40 AM(Mon 27 July)0.94 ft (0.29 m)
High Tide10:51 AM(Mon 27 July)8.24 ft (2.51 m)
Low Tide 4:37 PM(Mon 27 July)1.77 ft (0.54 m)
High Tide10:54 PM(Mon 27 July)9.74 ft (2.97 m)
tide stateSunrise: 5:31AMtide stateSunset: 8:08PMtide stateMoonset: 3:10AMtide stateMoonrise: 7:21PM

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Tide Times for Castle Island, Boston Harbor: Tuesday 28 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 5:22 AM(Tue 28 July)0.71 ft (0.22 m)
High Tide11:33 AM(Tue 28 July)8.47 ft (2.58 m)
Low Tide 5:21 PM(Tue 28 July)1.54 ft (0.47 m)
High Tide11:36 PM(Tue 28 July)9.93 ft (3.03 m)
tide stateSunrise: 5:32AMtide stateSunset: 8:07PMtide stateMoonset: 4:12AMtide stateMoonrise: 7:56PM

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Tide Times for Castle Island, Boston Harbor: Wednesday 29 July 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 6:00 AM(Wed 29 July)0.49 ft (0.15 m)
High Tide12:13 PM(Wed 29 July)8.71 ft (2.65 m)
Low Tide 6:03 PM(Wed 29 July)1.3 ft (0.4 m)
tide stateSunrise: 5:33AMtide stateSunset: 8:06PMtide stateMoonset: 5:17AMtide stateMoonrise: 8:24PM

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Tide Times for Castle Island, Boston Harbor: Thursday 30 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide00:16 AM(Thu 30 July)10.07 ft (3.07 m)
Low Tide 6:37 AM(Thu 30 July)0.29 ft (0.09 m)
High Tide12:50 PM(Thu 30 July)8.96 ft (2.73 m)
Low Tide 6:43 PM(Thu 30 July)1.07 ft (0.33 m)
tide stateSunrise: 5:34AMtide stateSunset: 8:05PMtide stateMoonset: 6:24AMtide stateMoonrise: 8:48PM

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Tide Times for Castle Island, Boston Harbor: Friday 31 July 2026

Tidetide stateTime (EDT)& DateHeight
High Tide00:54 AM(Fri 31 July)10.15 ft (3.09 m)
Low Tide 7:14 AM(Fri 31 July)0.13 ft (0.04 m)
High Tide 1:26 PM(Fri 31 July)9.22 ft (2.81 m)
Low Tide 7:24 PM(Fri 31 July)0.88 ft (0.27 m)
tide stateSunrise: 5:35AMtide stateSunset: 8:04PMtide stateMoonset: 7:30AMtide stateMoonrise: 9:10PM

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Tide Times for Castle Island, Boston Harbor: Saturday 01 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 1:32 AM(Sat 01 August)10.15 ft (3.09 m)
Low Tide 7:51 AM(Sat 01 August)0.05 ft (0.02 m)
High Tide 2:02 PM(Sat 01 August)9.46 ft (2.88 m)
Low Tide 8:05 PM(Sat 01 August)0.71 ft (0.22 m)
tide stateSunrise: 5:36AMtide stateSunset: 8:03PMtide stateMoonset: 8:37AMtide stateMoonrise: 9:30PM

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Tide Times for Castle Island, Boston Harbor: Sunday 02 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 2:12 AM(Sun 02 August)10.07 ft (3.07 m)
Low Tide 8:30 AM(Sun 02 August)0.06 ft (0.02 m)
High Tide 2:40 PM(Sun 02 August)9.69 ft (2.95 m)
Low Tide 8:48 PM(Sun 02 August)0.58 ft (0.18 m)
tide stateSunrise: 5:37AMtide stateSunset: 8:02PMtide stateMoonset: 9:43AMtide stateMoonrise: 9:50PM

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Tide Times for Castle Island, Boston Harbor: Monday 03 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 2:54 AM(Mon 03 August)9.9 ft (3.02 m)
Low Tide 9:10 AM(Mon 03 August)0.15 ft (0.05 m)
High Tide 3:20 PM(Mon 03 August)9.9 ft (3.02 m)
Low Tide 9:34 PM(Mon 03 August)0.49 ft (0.15 m)
tide stateSunrise: 5:38AMtide stateSunset: 8:01PMtide stateMoonset:10:51AMtide stateMoonrise:10:11PM

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Tide Times for Castle Island, Boston Harbor: Tuesday 04 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 3:39 AM(Tue 04 August)9.65 ft (2.94 m)
Low Tide 9:53 AM(Tue 04 August)0.34 ft (0.1 m)
High Tide 4:03 PM(Tue 04 August)10.06 ft (3.07 m)
Low Tide10:23 PM(Tue 04 August)0.44 ft (0.13 m)
tide stateSunrise: 5:39AMtide stateSunset: 7:59PMtide stateMoonset:12:02PMtide stateMoonrise:10:35PM

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Tide Times for Castle Island, Boston Harbor: Wednesday 05 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 4:29 AM(Wed 05 August)9.35 ft (2.85 m)
Low Tide10:40 AM(Wed 05 August)0.58 ft (0.18 m)
High Tide 4:51 PM(Wed 05 August)10.18 ft (3.1 m)
Low Tide11:17 PM(Wed 05 August)0.43 ft (0.13 m)
tide stateSunrise: 5:40AMtide stateSunset: 7:58PMtide stateMoonset: 1:16PMtide stateMoonrise:11:04PM

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Tide Times for Castle Island, Boston Harbor: Thursday 06 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide 5:23 AM(Thu 06 August)9.03 ft (2.75 m)
Low Tide11:32 AM(Thu 06 August)0.83 ft (0.25 m)
High Tide 5:44 PM(Thu 06 August)10.26 ft (3.13 m)
tide stateSunrise: 5:41AMtide stateSunset: 7:57PMtide stateMoonset: 2:32PMtide stateMoonrise:11:42PM

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Tide Times for Castle Island, Boston Harbor: Friday 07 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide00:16 AM(Fri 07 August)0.4 ft (0.12 m)
High Tide 6:23 AM(Fri 07 August)8.78 ft (2.68 m)
Low Tide12:29 PM(Fri 07 August)1.02 ft (0.31 m)
High Tide 6:42 PM(Fri 07 August)10.37 ft (3.16 m)
tide stateSunrise: 5:42AMtide stateSunset: 7:56PMtide stateMoonset: 3:49PM

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Tide Times for Castle Island, Boston Harbor: Saturday 08 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 1:19 AM(Sat 08 August)0.29 ft (0.09 m)
High Tide 7:27 AM(Sat 08 August)8.68 ft (2.65 m)
Low Tide 1:30 PM(Sat 08 August)1.06 ft (0.32 m)
High Tide 7:44 PM(Sat 08 August)10.53 ft (3.21 m)
tide stateSunrise: 5:43AMtide stateSunset: 7:54PMtide stateMoonrise:00:30AMtide stateMoonset: 4:59PM

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Tide Times for Castle Island, Boston Harbor: Sunday 09 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 2:22 AM(Sun 09 August)0.07 ft (0.02 m)
High Tide 8:32 AM(Sun 09 August)8.78 ft (2.68 m)
Low Tide 2:33 PM(Sun 09 August)0.91 ft (0.28 m)
High Tide 8:48 PM(Sun 09 August)10.78 ft (3.29 m)
tide stateSunrise: 5:45AMtide stateSunset: 7:53PMtide stateMoonrise: 1:32AMtide stateMoonset: 6:00PM

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Tide Times for Castle Island, Boston Harbor: Monday 10 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 3:25 AM(Mon 10 August)-0.26 ft (-0.08 m)
High Tide 9:35 AM(Mon 10 August)9.06 ft (2.76 m)
Low Tide 3:35 PM(Mon 10 August)0.61 ft (0.19 m)
High Tide 9:50 PM(Mon 10 August)11.08 ft (3.38 m)
tide stateSunrise: 5:46AMtide stateSunset: 7:52PMtide stateMoonrise: 2:45AMtide stateMoonset: 6:48PM

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Tide Times for Castle Island, Boston Harbor: Tuesday 11 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 4:23 AM(Tue 11 August)-0.62 ft (-0.19 m)
High Tide10:35 AM(Tue 11 August)9.47 ft (2.89 m)
Low Tide 4:33 PM(Tue 11 August)0.22 ft (0.07 m)
High Tide10:49 PM(Tue 11 August)11.33 ft (3.45 m)
tide stateSunrise: 5:47AMtide stateSunset: 7:50PMtide stateMoonrise: 4:05AMtide stateMoonset: 7:25PM

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Tide Times for Castle Island, Boston Harbor: Wednesday 12 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 5:18 AM(Wed 12 August)-0.93 ft (-0.28 m)
High Tide11:30 AM(Wed 12 August)9.89 ft (3.01 m)
Low Tide 5:30 PM(Wed 12 August)-0.14 ft (-0.04 m)
High Tide11:44 PM(Wed 12 August)11.46 ft (3.49 m)
tide stateSunrise: 5:48AMtide stateSunset: 7:49PMtide stateMoonrise: 5:26AMtide stateMoonset: 7:55PM

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Tide Times for Castle Island, Boston Harbor: Thursday 13 August 2026

Tidetide stateTime (EDT)& DateHeight
Low Tide 6:09 AM(Thu 13 August)-1.08 ft (-0.33 m)
High Tide12:22 PM(Thu 13 August)10.25 ft (3.12 m)
Low Tide 6:23 PM(Thu 13 August)-0.38 ft (-0.12 m)
tide stateSunrise: 5:49AMtide stateSunset: 7:47PMtide stateMoonrise: 6:44AMtide stateMoonset: 8:20PM

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Tide Times for Castle Island, Boston Harbor: Friday 14 August 2026

Tidetide stateTime (EDT)& DateHeight
High Tide00:37 AM(Fri 14 August)11.39 ft (3.47 m)
Low Tide 6:57 AM(Fri 14 August)-1.05 ft (-0.32 m)
High Tide 1:10 PM(Fri 14 August)10.48 ft (3.19 m)
Low Tide 7:14 PM(Fri 14 August)-0.46 ft (-0.14 m)
tide stateSunrise: 5:50AMtide stateSunset: 7:46PMtide stateMoonrise: 7:58AMtide stateMoonset: 8:42PM

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