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 06:31 AM and sunset is at 06:46 PM.
Days 1–3 Weather SummaryModerate rain (total 13mm), heaviest on Sun night. Cool air temperatures (max 19°C on Sun afternoon, min 13°C on Tue night). Winds increasing (light winds from the WSW on Sun night, strong winds from the ENE by Tue night). | Days 4–6 Weather SummaryHeavy rain (total 24mm), heaviest during Fri afternoon. Cool air temperatures (max 15°C on Wed morning, min 13°C on Thu night). Winds increasing (strong winds from the NE on Wed night, gales from the NE by Fri night). | Days 7–9 Weather SummaryHeavy rain (total 42mm), heaviest during Sun afternoon. Very mild (max 16°C on Mon morning, min 13°C on Sun afternoon). Winds decreasing (gales from the NE on Sat morning, fresh winds from the NE by Mon night). | Days 10–12 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 21°C on Wed night, min 9°C on Thu night). Winds increasing (light winds from the NNW on Tue night, fresh winds from the NW by Thu night). | Days 13–16 Weather SummaryMostly dry. Very mild (max 18°C on Mon night, min 10°C on Sun morning). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the NNE by Sun afternoon). | |||||||||||||||||||||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Mon 5 | ||||||||||||||||||||||||||||||||
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 | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||
High Tide | 3:55PM0.77m | 4:16AM0.66m | 5:00PM0.81m | 5:14AM0.73m | 5:45PM0.86m | 5:56AM0.81m | 6:21PM0.91m | 6:33AM0.91m | 6:55PM0.96m | 7:09AM1.00m | 7:29PM0.99m | 7:46AM1.08m | 8:06PM1.01m | 8:24AM1.14m | 8:46PM1.00m | 9:06AM1.17m | 9:30PM0.98m | 9:50AM1.17m | 10:17PM0.94m | 10:39AM1.14m | 11:09PM0.89m | 11:33AM1.09m | 00:06AM0.85m | 12:33PM1.04m | 1:08AM0.82m | 1:39PM0.99m | 2:17AM0.82m | 2:52PM0.96m | |||||||||||||||||||
Low Tide | 8:44AM0.30m | 10:40PM0.27m | 10:20AM0.27m | 11:25PM0.23m | 11:16AM0.21m | 00:04AM0.17m | 12:04PM0.15m | 00:38AM0.11m | 12:48PM0.09m | 1:07AM0.05m | 1:28PM0.03m | 1:33AM0.00m | 2:07PM-0.00m | 2:01AM-0.04m | 2:45PM-0.02m | 2:33AM-0.06m | 3:24PM-0.01m | 3:09AM-0.06m | 4:06PM0.02m | 3:50AM-0.04m | 4:55PM0.07m | 4:35AM0.01m | 6:02PM0.12m | 5:29AM0.06m | 7:41PM0.16m | 6:36AM0.12m | 9:00PM0.15m | 8:20AM0.14m | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 4 | SE 4 | SSE 4 | NE 4 | ENE 4 | ENE 4 | E 5 | ENE 5 | E 5 | E 6 | E 6 | SE 11 | SE 12 | SE 12 | SE 12 | E 7 | ENE 6 | ENE 6 | SSE 10 | SSE 10 | ENE 6 | E 7 | E 7 | E 6 | ENE 6 | ENE 5 | E 6 | SSE 8 | SSE 8 | SSE 8 | ESE 9 | ESE 9 | SSE 6 | S 6 | SE 8 | NW 3 | WNW 3 | WNW 4 | W 4 | WNW 4 | WNW 4 | NW 3 | NNW 2 | SSE 10 | SSE 4 | S 3 | S 3 |
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rain shwrs | light rain | mod rain | cloudy | some clouds | some clouds | cloudy | cloudy | cloudy | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | heavy rain | mod rain | light rain | light rain | light rain | light rain | heavy rain | mod rain | light rain | light rain | cloudy | cloudy | light rain | rain shwrs | clear | clear | clear | light rain | some clouds | cloudy | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
mm | 1 | 4 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 10 | 4 | 1 | 1 | 4 | 15 | 10 | 4 | 3 | — | — | 1 | 4 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 18 | 19 | 19 | 14 | 18 | 16 | 14 | 14 | 13 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 15 | 14 | 15 | 15 | 13 | 15 | 16 | 16 | 15 | 15 | 16 | 16 | 17 | 19 | 21 | 17 | 18 | 13 | 12 | 15 | 14 | 12 | 16 | 14 | 11 | 13 | 14 | 15 | 16 |
Moonrise | — | 3:51 | — | — | 4:25 | — | — | 4:53 | — | — | 5:18 | — | — | 5:40 | — | — | 6:02 | — | — | 6:24 | — | — | 6:48 | — | — | 7:15 | — | — | 7:49 | — | — | 8:31 | — | — | — | 9:24 | — | — | 10:28 | — | — | 11:40 | — | — | — | 12:56 | — |
Moonset | — | — | — | 12:57 | — | — | 2:01 | — | — | 3:07 | — | — | 4:14 | — | — | 5:20 | — | — | 6:29 | — | — | 7:39 | — | — | 8:52 | — | — | 10:08 | — | — | 11:24 | — | — | 12:38 | — | — | 1:43 | — | — | 2:38 | — | — | — | 3:21 | — | — | 3:56 |
 | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — |
 | — | 6:46 | — | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:35 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:27 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 |
Today's sea temperature in Block Island (Old Harbor) is 21.2°C (Statistics for 20 Sep 1981-2005 – mean: 19.1 max: 20.7 min: 16.0°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Nearest