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 — and sunset is at 04:17 PM.
Days 1–4 Weather SummaryModerate rain (total 10mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -2°C on Fri night). Winds increasing (light winds from the NNW on Wed night, gales from the SSE by Fri morning). | Days 5–7 Weather SummaryMostly dry. Icy conditions (max 8°C on Sat night, min -5°C on Mon night). Winds decreasing (near gales from the WSW on Sat night, light winds from the W by Mon night). | Days 8–10 Weather SummaryLight rain (total 5mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 6°C on Thu afternoon, min -2°C on Wed night). Winds decreasing (near gales from the SW on Tue afternoon, calm by Thu afternoon). | Days 11–13 Weather SummaryA dusting of snow turning to light rain (total 2mm) on Sat morning. Freeze-thaw conditions (max 3°C on Fri afternoon, min -5°C on Sun night). Mainly fresh winds. | |||||||||||||||||||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Mon 29 | ||||||||||||||||||||||||
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 | 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 | 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 | 9:07AM0.06m | |||||||||||||
SW 5 | S 8 | S 8 | S 8 | S 6 | SSE 8 | SSE 10 | S 10 | S 10 | SSE 10 | SSW 4 | S 8 | S 8 | W 4 | WNW 4 | WNW 4 | WNW 3 | SW 2 | SW 5 | W 4 | WNW 4 | NW 3 | S 8 | SW 3 | S 3 | S 5 | S 6 | SSW 6 | SE 4 | ESE 4 | SE 4 | WNW 3 | WNW 3 | WNW 3 | N 2 | SE 9 | |
 |  | | |  |  | | |  | |  | | | | | |  |  |  | | | | | | |  | | | |  | | | | | | | |
clear | clear | clear | clear | light rain | mod rain | clear | clear | some clouds | some clouds | cloudy | some clouds | clear | clear | clear | clear | some clouds | cloudy | light rain | clear | clear | clear | some clouds | light rain | light rain | rain shwrs | cloudy | cloudy | cloudy | light snow | light rain | clear | clear | some clouds | cloudy | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | 1 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | |
max°C | 7 | 4 | 5 | 10 | 13 | 13 | 8 | 1 | 0 | 2 | 8 | 6 | 7 | -1 | -1 | -1 | -3 | 2 | 3 | 4 | 3 | 2 | 0 | 3 | 6 | 3 | 2 | 3 | 2 | 2 | 3 | 0 | -2 | -2 | -5 | -3 |
Moonrise | — | — | 6:08 | — | — | 7:06 | — | — | 7:58 | — | — | 8:42 | — | — | 9:19 | — | — | 9:50 | — | — | 10:16 | — | — | 10:39 | — | — | 11:00 | — | — | 11:22 | — | — | 11:45 | — | — | 12:12 |
Moonset | — | — | 2:52 | — | — | — | 3:40 | — | — | 4:35 | — | — | 5:37 | — | — | 6:43 | — | — | 7:50 | — | — | 8:57 | — | — | — | 10:05 | — | — | 11:13 | — | — | — | 12:23 | — | — | 1:37 |
 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 |
 | 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