Deer Island (south end), Boston Harbor Sea Conditions table showing wave height, swell direction and period.
High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at — and sunset is at 07:37 PM.
Days 1–4 Weather SummaryMostly dry. Cool air temperatures (max 14°C on Sat afternoon, min 4°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Cool air temperatures (max 15°C on Sun night, min 6°C on Tue night). Wind will be generally light. | Days 8–10 Weather SummaryHeavy rain (total 22mm), heaviest during Fri night. Warm (max 25°C on Thu afternoon, min 6°C on Fri night). Wind will be generally light. | Days 11–13 Weather SummaryLight rain (total 7mm), mostly falling on Tue morning. Very mild (max 11°C on Mon night, min 7°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tue 7 | |||||||||||||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
High Tide | 1:17AM3.02m | 1:53PM2.68m | 1:55AM3.01m | 2:35PM2.63m | 2:37AM3.00m | 3:20PM2.58m | 3:24AM2.97m | 4:10PM2.55m | 4:17AM2.94m | 5:06PM2.55m | 5:16AM2.92m | 6:04PM2.60m | 6:19AM2.93m | 7:04PM2.72m | 7:23AM2.96m | 8:03PM2.89m | 8:26AM3.03m | 8:58PM3.08m | 9:26AM3.09m | 9:51PM3.27m | 10:22AM3.15m | 10:42PM3.41m | 11:16AM3.16m | |||||||||||||
Low Tide | 7:08PM0.33m | 7:39AM0.03m | 7:47PM0.36m | 8:21AM0.05m | 8:29PM0.41m | 9:06AM0.08m | 9:15PM0.45m | 9:55AM0.12m | 10:07PM0.48m | 10:49AM0.15m | 11:04PM0.48m | 11:47AM0.16m | 00:06AM0.43m | 12:47PM0.12m | 1:09AM0.31m | 1:46PM0.06m | 2:12AM0.14m | 2:42PM-0.02m | 3:11AM-0.06m | 3:36PM-0.09m | 4:08AM-0.24m | 4:28PM-0.14m | 5:01AM-0.38m | |||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 10 | E 10 | E 9 | E 9 | E 12 | E 10 | ENE 10 | ENE 9 | E 9 | E 9 | E 10 | ENE 11 | ENE 10 | ENE 10 | E 9 | ENE 6 | ENE 3 | ENE 4 | ENE 3 | ENE 4 | ENE 5 | NE 4 | ENE 4 | ENE 4 | ENE 5 | ENE 6 | E 9 | ENE 10 | ENE 10 | |
 |  | | | |  |  |  | |  | | | | |  |  | | |  | | | | |  |  | | | | | | | | | | | | |
clear | clear | clear | clear | clear | some clouds | cloudy | cloudy | some clouds | some clouds | cloudy | cloudy | cloudy | cloudy | light rain | light rain | some clouds | cloudy | rain shwrs | some clouds | some clouds | some clouds | light rain | mod rain | mod rain | some clouds | some clouds | some clouds | clear | clear | some clouds | cloudy | cloudy | cloudy | light rain | light rain | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1.0 | 3 | — | — | 1.0 | — | — | — | 2.0 | 9 | 10 | — | — | — | — | — | — | — | — | — | 3 | 3 | |
max°C | 7 | 7 | 9 | 8 | 11 | 14 | 12 | 8 | 14 | 15 | 12 | 13 | 11 | 7 | 9 | 9 | 10 | 12 | 12 | 20 | 25 | 23 | 11 | 7 | 8 | 9 | 9 | 8 | 10 | 10 | 8 | 10 | 10 | 11 | 9 | 9 |
Moonrise | 9:49 | — | — | 10:57 | — | — | — | 12:02 | — | — | 12:59 | — | — | 1:47 | — | — | 2:25 | — | — | 2:56 | — | — | 3:23 | — | — | 3:46 | — | — | 4:09 | — | — | 4:32 | — | — | 4:58 | — |
Moonset | 6:19 | 6:51 | — | — | 7:31 | — | — | 8:23 | — | — | 9:25 | — | — | 10:36 | — | — | 11:52 | — | — | 1:10 | — | — | 2:27 | — | — | — | 3:44 | — | — | 5:02 | — | — | 6:21 | — | — | 7:41 |
 | — | 5:45 | — | — | 5:43 | — | — | 5:41 | — | — | 5:41 | — | — | 5:39 | — | — | 5:37 | — | — | 5:37 | — | — | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:30 | — |
 | 7:37 | — | 7:37 | — | — | 7:38 | — | — | 7:39 | — | — | 7:40 | — | — | 7:42 | — | — | 7:44 | — | — | 7:45 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:49 | — | — | 7:50 |
Today's sea temperature in Deer Island (south end), Boston Harbor is 8.1 °C (Statistics for 25 Apr 1981-2005 – mean: 6.7 max: 7.9 min: 5.3°C) | ||||||||||||||||||||||||||||||||||||
Nearest