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 07:07 AM and sunset is at 04:19 PM.
Days 1–3 Weather SummaryModerate rain (total 13mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds decreasing (gales from the S on Fri morning, moderate winds from the WNW by Sat morning). | Days 4–6 Weather SummaryModerate rain (total 10mm), heaviest on Tue afternoon. Icy conditions (max 4°C on Tue morning, min -4°C on Sun night). Winds increasing (light winds from the WNW on Mon night, near gales from the WSW by Tue afternoon). | Days 7–9 Weather SummaryLight rain (total 9mm), mostly falling on Thu night. Freeze-thaw conditions (max 12°C on Fri afternoon, min 0°C on Wed night). Winds increasing (calm on Wed night, strong winds from the SW by Fri morning). | Days 10–12 Weather SummaryA light covering of new snow, mostly falling on Mon night. Freeze-thaw conditions (max 4°C on Sat night, min 0°C on Sun night). Winds increasing (light winds from the NNE on Sun afternoon, gales from the NE by Tue morning). | ||||||||||||||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | ||||||||||||||||||||||||
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 | 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 | 2:38PM0.72m | 3:15AM0.96m | 3:46PM0.74m | |||||||||||||
Low Tide | 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 | 9:07AM0.06m | 8:26PM-0.04m | 10:13AM-0.01m | |||||||||||||
SSE 7 | SSE 10 | S 11 | S 10 | SSE 10 | SSW 5 | S 8 | S 8 | W 4 | WNW 4 | NW 4 | SE 9 | SSW 4 | SW 5 | SSW 7 | WSW 4 | SSW 7 | S 7 | SSW 4 | SSW 4 | S 6 | SSW 8 | S 9 | S 8 | S 8 | S 8 | S 7 | NE 3 | SSE 6 | NE 3 | ENE 3 | E 3 | E 4 | ENE 6 | NE 6 | |
 |  |  |  |  |  | | |  |  | | | | | | | | | | |  | | | | | | | | | | | |  | | | |
mod rain | light rain | rain shwrs | some clouds | cloudy | some clouds | some clouds | some clouds | clear | clear | clear | some clouds | light rain | mod rain | clear | clear | clear | some clouds | light rain | light rain | light rain | light rain | clear | clear | cloudy | clear | some clouds | clear | some clouds | some clouds | cloudy | cloudy | mod snow | cloudy | cloudy | |
km/h | |||||||||||||||||||||||||||||||||||
9 | 2 | 2 | — | — | — | — | — | — | — | — | — | 2 | 8 | — | — | — | — | 1 | 1 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 13 | 9 | 2 | 1 | 3 | 8 | 6 | 5 | -1 | -1 | -1 | 2 | 4 | 4 | 3 | 4 | 4 | 3 | 5 | 6 | 10 | 10 | 12 | 7 | 5 | 6 | 4 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 0 |
Moonrise | 7:06 | — | — | 7:58 | — | — | 8:42 | — | — | 9:19 | — | — | 9:50 | — | — | 10:16 | — | — | 10:39 | — | — | 11:00 | — | — | 11:22 | — | — | 11:45 | — | — | 12:12 | — | — | 12:44 | — |
Moonset | — | 3:40 | — | — | 4:35 | — | — | 5:37 | — | — | 6:43 | — | — | 7:50 | — | — | 8:57 | — | — | — | 10:05 | — | — | 11:13 | — | — | — | 12:23 | — | — | 1:37 | — | — | 2:54 | — |
 | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — |
 | — | 4:19 | — | — | 4:20 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 |
Today's sea temperature in Block Island (Old Harbor) is 7.9° C (Statistics for 19 Dec 1981-2005 – mean: 8.7 max: 11.8 min: 7.1°C) | |||||||||||||||||||||||||||||||||||
Nearest