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 07:03 AM and sunset is at 04:17 PM.
Days 1–3 Weather SummaryMostly dry. Icy conditions (max 7°C on Tue night, min -9°C on Sun night). Winds increasing (moderate winds from the WSW on Tue afternoon, strong winds from the WSW by Wed afternoon). | Days 4–6 Weather SummaryModerate rain (total 11mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -4°C on Fri night). Winds increasing (light winds from the WSW on Wed night, gales from the S by Thu night). | Days 7–9 Weather SummaryLight rain (total 7mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 10°C on Sun morning, min -4°C on Mon night). Winds decreasing (near gales from the SW on Sun morning, calm by Mon night). | Days 10–12 Weather SummaryHeavy rain (total 30mm), heaviest during Fri morning. Freeze-thaw conditions (max 9°C on Fri afternoon, min -2°C on Wed night). Winds decreasing (strong winds from the WSW on Tue night, calm by Thu afternoon). | ||||||||||||||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Fri 26 | ||||||||||||||||||||||||
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 | 4:29PM0.64m | 4:58AM0.87m | 5:14PM0.66m | 5:39AM0.89m | 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 | |||||||||||||
Low Tide | 10:37AM0.11m | 10:09PM0.09m | 11:21AM0.09m | 10:45PM0.08m | 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 | ||||||||||||
NW 4 | WNW 4 | W 3 | W 3 | SW 3 | SW 4 | SSW 5 | SSW 5 | S 8 | S 8 | S 7 | S 6 | S 8 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSW 4 | S 8 | S 8 | S 8 | SW 5 | NW 4 | SE 10 | SE 10 | SSW 5 | SW 5 | W 4 | W 4 | WNW 4 | WNW 3 | S 7 | SSE 2 | SSE 6 | S 7 | |
 |  |  | | |  | | |  | | | |  | | |  | | | | | | | | | |  |  | | | | | | | |  | |
clear | some clouds | cloudy | clear | some clouds | some clouds | clear | clear | clear | clear | clear | some clouds | heavy rain | clear | clear | cloudy | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | clear | cloudy | mod rain | rain shwrs | clear | clear | some clouds | some clouds | some clouds | rain shwrs | heavy rain | light rain | |
km/h | |||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 1 | — | — | — | — | — | 5 | 23 | 1 | |
max°C | -4 | -2 | 0 | -2 | -1 | 7 | 7 | 7 | 5 | 6 | 11 | 13 | 13 | 7 | -1 | -2 | 1 | 9 | 10 | 6 | 4 | 3 | -1 | -1 | 3 | 7 | 5 | 5 | 3 | 1 | -1 | 1 | 5 | 8 | 9 |
Moonrise | 3:00 | — | — | 4:03 | — | — | 5:06 | — | — | 6:08 | — | — | 7:06 | — | — | 7:58 | — | — | 8:42 | — | — | 9:19 | — | — | 9:50 | — | — | 10:16 | — | — | 10:39 | — | — | 11:00 | — |
Moonset | 1:15 | — | — | 1:42 | — | — | 2:14 | — | — | 2:52 | — | — | — | 3:40 | — | — | 4:35 | — | — | 5:37 | — | — | 6:43 | — | — | 7:50 | — | — | 8:57 | — | — | — | 10:05 | — | — |
 | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — |
 | — | 4:17 | — | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 |
Today's sea temperature in Block Island (Old Harbor) is 9.1° C (Statistics for 15 Dec 1981-2005 – mean: 9.2 max: 11.8 min: 7.7°C) | |||||||||||||||||||||||||||||||||||
Nearest