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 04:20 PM.
Days 1–3 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Icy conditions (max 7°C on Sat night, min -3°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, light winds from the NE by Tue afternoon). | Days 4–6 Weather SummaryModerate rain (total 16mm), heaviest on Fri morning. Cool air temperatures (max 11°C on Fri afternoon, min 1°C on Wed night). Winds increasing (calm on Wed night, near gales from the SW by Fri morning). | Days 7–9 Weather SummaryLight rain (total 4mm), mostly falling on Sun morning. Freeze-thaw conditions (max 5°C on Sun morning, min -8°C on Fri night). Winds decreasing (strong winds from the N on Fri night, light winds from the ESE by Sat afternoon). | Days 10–12 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Freeze-thaw conditions (max 4°C on Tue night, min -2°C on Mon night). Winds increasing (light winds from the NE on Tue morning, strong winds from the ENE by Wed afternoon). | ||||||||||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thu 1 | ||||||||||||||||||||||||
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 | 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 | 4:19AM1.03m | 4:50PM0.79m | 5:18AM1.09m | 5:47PM0.85m | ||||||||||||
Low Tide | 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 | 9:28PM-0.08m | 11:13AM-0.07m | 10:30PM-0.12m | 12:08PM-0.13m | |||||||||||||
S 8 | S 8 | W 4 | WNW 4 | NW 4 | SSW 5 | WSW 4 | S 7 | SE 10 | WNW 3 | NW 3 | S 7 | ESE 7 | SSW 3 | ESE 9 | SSW 4 | S 7 | S 9 | S 9 | S 9 | SSE 8 | SSW 4 | S 5 | S 6 | NNE 3 | SSE 6 | ESE 7 | ESE 8 | SE 10 | ESE 3 | ESE 5 | ESE 6 | SE 8 | SE 9 | SE 9 | |
 | |  | |  |  |  |  |  | | |  | | | |  |  | | | | | | | | | | | | | | | | | | | |
clear | clear | clear | clear | some clouds | cloudy | cloudy | light rain | light rain | clear | clear | some clouds | some clouds | cloudy | cloudy | heavy rain | rain shwrs | clear | clear | clear | some clouds | light rain | rain shwrs | clear | clear | clear | some clouds | cloudy | cloudy | light rain | light rain | cloudy | some clouds | clear | clear | |
km/h | |||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | 2 | 4 | — | — | — | — | — | — | 11 | 1 | — | — | — | — | 3 | 1 | — | — | — | — | — | — | 1 | 3 | — | — | — | — | |
max°C | 6 | 2 | -1 | 0 | 1 | 3 | 2 | 3 | 4 | 6 | 5 | 3 | 6 | 7 | 8 | 10 | 11 | 2 | -5 | -4 | 3 | 5 | 4 | 2 | 1 | 1 | 0 | 0 | 2 | 4 | 2 | 3 | 2 | 3 | 3 |
Moonrise | 8:42 | — | — | 9:19 | — | — | 9:50 | — | — | 10:16 | — | — | 10:39 | — | — | 11:00 | — | — | 11:22 | — | — | 11:45 | — | — | 12:12 | — | — | 12:44 | — | — | 1:26 | — | — | 2:20 | — |
Moonset | — | 5:37 | — | — | 6:43 | — | — | 7:50 | — | — | 8:57 | — | — | — | 10:05 | — | — | 11:13 | — | — | — | 12:23 | — | — | 1:37 | — | — | 2:54 | — | — | 4:14 | — | — | 5:33 | — |
 | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — |
 | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 |
Today's sea temperature in Block Island (Old Harbor) is 7.8° C (Statistics for 21 Dec 1981-2005 – mean: 8.5 max: 10.3 min: 6.7°C) | |||||||||||||||||||||||||||||||||||
Nearest