Block Island (Old 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 07:05 AM and sunset is at 04:17 PM.
Days 1–3 Weather SummaryModerate rain (total 15mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds increasing (calm on Wed night, gales from the S by Fri morning). | Days 4–6 Weather SummaryMostly dry. Icy conditions (max 8°C on Sat night, min -6°C on Mon night). Winds increasing (light winds from the WSW on Sat afternoon, strong winds from the SW by Sat night). | Days 7–9 Weather SummaryDrizzle on Tue night turning to light snow on Thu morning. Freeze-thaw conditions (max 7°C on Thu night, min -4°C on Tue morning). Winds decreasing (strong winds from the WSW on Tue night, light winds from the ENE by Wed night). | Days 10–12 Weather SummaryMostly dry. Freeze-thaw conditions (max 5°C on Fri morning, min -8°C on Sun morning). Mainly strong winds. | |||||||||||||||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||||||||||||||
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 | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
High Tide | 5:54PM0.68m | 6:16AM0.91m | 6:30PM0.71m | 6:51AM0.92m | 7:06PM0.72m | 7:26AM0.92m | 7:42PM0.73m | 8:01AM0.91m | 8:20PM0.74m | 8:39AM0.90m | 9:01PM0.74m | 9:19AM0.87m | 9:45PM0.74m | 10:02AM0.85m | 10:32PM0.75m | 10:47AM0.82m | 11:21PM0.77m | 11:37AM0.79m | 00:13AM0.81m | 12:31PM0.76m | 1:09AM0.85m | 1:31PM0.73m | 2:10AM0.90m | |||||||||||||
Low Tide | 12:03PM0.06m | 11:23PM0.05m | 12:44PM0.03m | 00:02AM0.03m | 1:22PM0.02m | 00:40AM0.01m | 1:59PM0.01m | 1:18AM0.01m | 2:33PM0.01m | 1:56AM0.01m | 3:05PM0.02m | 2:35AM0.03m | 3:35PM0.02m | 3:17AM0.05m | 4:08PM0.02m | 4:03AM0.08m | 4:47PM0.02m | 4:58AM0.11m | 5:33PM0.01m | 6:08AM0.12m | 6:26PM-0.00m | 7:43AM0.11m | 7:25PM-0.02m | |||||||||||||
SSW 5 | SW 5 | S 8 | S 8 | S 8 | SSE 6 | SSE 8 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 9 | S 8 | S 8 | W 4 | WNW 4 | WNW 4 | NNW 3 | SE 10 | WSW 3 | SW 4 | W 4 | WSW 5 | SSW 8 | SSW 8 | ENE 3 | ESE 4 | SSE 6 | WSW 4 | W 4 | W 3 | WNW 3 | NNW 4 | NW 4 | NW 4 | WNW 4 | |
 |  |  | | |  |  |  | | | |  | | | | | | | |  |  | | |  |  |  | | | | | | | | | | | |
some clouds | clear | clear | clear | clear | light rain | heavy rain | rain shwrs | clear | some clouds | some clouds | cloudy | clear | clear | clear | clear | clear | clear | some clouds | cloudy | snow shwrs | some clouds | clear | some clouds | mod snow | light snow | cloudy | some clouds | clear | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | 2 | 11 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 7 | 6 | 4 | 6 | 11 | 13 | 13 | 8 | 1 | 0 | 1 | 8 | 6 | 6 | 4 | -2 | -2 | -5 | -2 | 2 | 3 | 5 | 5 | 0 | 0 | 1 | 7 | 5 | 5 | 2 | -2 | -3 | -6 | -6 | -6 | -7 |
Moonrise | 5:06 | — | — | 6:08 | — | — | 7:06 | — | — | 7:58 | — | — | 8:42 | — | — | 9:19 | — | — | 9:50 | — | — | 10:16 | — | — | 10:39 | — | — | 11:00 | — | — | 11:22 | — | — | 11:45 | — | — |
Moonset | 2:14 | — | — | 2:52 | — | — | — | 3:40 | — | — | 4:35 | — | — | 5:37 | — | — | 6:43 | — | — | 7:50 | — | — | 8:57 | — | — | — | 10:05 | — | — | 11:13 | — | — | — | 12:23 | — | — |
 | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — |
 | — | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:23 | — |
Today's sea temperature in Block Island (Old Harbor) is 8.6° C (Statistics for 17 Dec 1981-2005 – mean: 8.9 max: 11.8 min: 7.5°C) | ||||||||||||||||||||||||||||||||||||
Nearest