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 06:45 PM.
Days 1–4 Weather SummaryA dusting of snow turning to light rain (total 2mm) on Fri night. Icy conditions (max 6°C on Fri night, min -2°C on Thu night). Winds decreasing (fresh winds from the W on Sat afternoon, light winds from the E by Sun morning). | Days 5–7 Weather SummaryHeavy rain (total 20mm), heaviest during Mon night. Icy conditions (max 16°C on Mon night, min -4°C on Wed morning). Winds decreasing (strong winds from the SSW on Mon night, light winds from the N by Wed afternoon). | Days 8–10 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Freeze-thaw conditions (max 4°C on Fri afternoon, min -4°C on Sat morning). Winds increasing (calm on Thu night, fresh winds from the W by Sat morning). | Days 11–13 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 3°C on Mon afternoon, min -8°C on Mon night). Winds decreasing (fresh winds from the WNW on Sat night, calm by Sun night). | ||||||||||||||||||||||||||||||||||||||||||||
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Sat 28 | ||||||||||||||||||||||||||||||||
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 | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||||||||
High Tide | 7:12PM2.20m | 7:24AM2.55m | 8:12PM2.24m | 8:23AM2.61m | 9:07PM2.35m | 9:17AM2.71m | 9:54PM2.50m | 10:05AM2.83m | 10:36PM2.67m | 10:49AM2.95m | 11:15PM2.85m | 11:31AM3.04m | 11:53PM3.01m | 12:15PM3.10m | 00:34AM3.15m | 12:59PM3.11m | 1:16AM3.24m | 1:45PM3.06m | 2:00AM3.29m | 2:33PM2.97m | 2:47AM3.27m | 3:24PM2.85m | 3:38AM3.19m | 4:20PM2.70m | 4:36AM3.07m | 5:24PM2.58m | 5:41AM2.95m | 6:32PM2.51m | |||||||||||||||||||
Low Tide | 1:05AM0.69m | 1:52PM0.48m | 2:02AM0.64m | 2:48PM0.40m | 2:58AM0.53m | 3:38PM0.27m | 3:49AM0.37m | 4:22PM0.14m | 4:35AM0.18m | 5:03PM0.01m | 5:20AM-0.00m | 5:43PM-0.09m | 6:03AM-0.16m | 6:24PM-0.16m | 6:48AM-0.28m | 7:06PM-0.18m | 7:34AM-0.34m | 7:50PM-0.15m | 8:22AM-0.33m | 8:36PM-0.07m | 9:12AM-0.26m | 9:26PM0.05m | 10:08AM-0.13m | 10:22PM0.20m | 11:09AM-0.00m | 11:24PM0.32m | 12:15PM0.10m | ||||||||||||||||||||
NNW 4 | N 5 | E 11 | SSE 4 | WSW 4 | W 4 | NW 4 | N 3 | ESE 3 | SE 4 | ESE 6 | SE 6 | SSE 6 | ESE 10 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | E 9 | E 9 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | W 3 | E 15 | NNE 4 | NNW 4 | N 5 | NNE 6 | NE 6 | S 4 | SW 3 | WSW 2 | ENE 4 | NE 4 | NE 4 | NE 4 | NE 6 | ENE 7 | ENE 8 | E 9 | |
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snow shwrs | some clouds | cloudy | rain shwrs | some clouds | some clouds | clear | some clouds | some clouds | some clouds | mod rain | light rain | mod rain | light rain | some clouds | clear | clear | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | light rain | rain shwrs | clear | clear | clear | some clouds | cloudy | light snow | clear | cloudy | clear | cloudy | some clouds | cloudy | clear | some clouds | some clouds | cloudy | rain shwrs | light snow | mod snow | cloudy | some clouds | cloudy | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
— | — | — | 2 | — | — | — | — | — | — | 6 | 3 | 10 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | |
max°C | 1 | 1 | 4 | 6 | 6 | 6 | 3 | 0 | 3 | 5 | 13 | 14 | 16 | 10 | 5 | 1 | -2 | 2 | -1 | 1 | 3 | 1 | 3 | 4 | 4 | -2 | 0 | -2 | -3 | 2 | 1 | 0 | 3 | 0 | -6 | 2 | 5 | 13 | 22 | 19 | 4 | 3 | 2 | 0 | 1 | 2 | 1 |
Moonrise | — | 4:14 | — | — | 4:51 | — | — | 5:22 | — | — | 5:48 | — | — | 6:11 | — | — | 6:33 | — | — | 6:54 | — | — | 7:17 | — | — | 7:43 | — | — | 8:14 | — | — | 8:54 | — | — | 9:44 | — | — | 10:46 | — | — | 11:57 | — | — | 1:12 | — | — | 2:27 |
Moonset | — | 12:54 | — | — | 2:00 | — | — | — | 3:10 | — | — | 4:20 | — | — | 5:31 | — | — | 6:44 | — | — | 7:57 | — | — | — | 9:14 | — | — | 10:33 | — | — | 11:53 | — | — | — | 1:10 | — | — | 2:18 | — | — | 3:14 | — | — | 3:57 | — | — | 4:31 |
 | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:46 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 |
 | 6:45 | — | 6:46 | — | — | 6:47 | — | — | 6:49 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:53 | — | — | 6:54 | — | — | 6:55 | — | — | 6:57 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:02 | — | — |
Today's sea temperature in Deer Island (south end), Boston Harbor is 3.0° C (Statistics for 12 Mar 1981-2005 – mean: 3.4 max: 4.6 min: 1.5°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Nearest