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Block Island Surf Forecast
/ Rhode Island (33 breaks) / Rhode Island (34 breaks) /
Surf Forecasts:
Block Island surfForecast / Rhode Island / USA
48hr Weather and Surf, issued 1 pm Saturday 09 May 2026 EDTForecast update in hr min s Forecast update imminent
Block Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Block Island sea temperature is
8.5° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Block Island today?
The current surf forecast for Block Island at 7PM is: 1.4m 6s primary swell from a South-southwest direction and 0.4m 9s secondary swell from a East-southeast direction, 0.1m 11s secondary swell from a Southeast direction (forecast issued at 01:00pm May 09). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 3.5ft (1.0m) | 7s |
| Afternoon (09 May) | 4.5ft (1.4m) | 6s |
| Evening (09 May) | 4.5ft (1.4m) | 6s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Sat night. Very mild (max 16°C on Sun night, min 8°C on Mon afternoon). Winds decreasing (fresh winds from the S on Sat afternoon, calm by Mon morning). | ||||||||||||||||||||||||
Sat 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 7 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | SSE 6 | S 7 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 | S 8 | ESE 9 | ESE 9 | ESE 8 | SW 7 | ESE 8 | ESE 8 | SE 8 | ESE 8 | SE 8 | |
111 | 109 | 145 | 146 | 165 | 123 | 82 | 214 | 302 | 310 | 316 | 324 | 302 | 169 | 138 | 135 | 132 | 120 | 47 | 86 | 82 | 86 | 51 | 57 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | off | cross-off | cross-off | off | glassy | cross | cross | cross | cross-off | off | cross-off | cross-off | |
High Tide | 2:09PM0.65m | 2:15AM0.69m | 3:10PM0.70m | 3:18AM0.70m | 4:06PM0.78m | 4:19AM0.72m | ||||||||||||||||||
Low Tide | 8:08AM0.17m | 8:11PM0.23m | 8:57AM0.14m | 9:40PM0.20m | 9:42AM0.11m | 10:43PM0.14m | ||||||||||||||||||
 | |  |  |  |  | |  | |  | |  | | | | |  | | |  | | | | | |
 | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — |
 | — | — | 7:51 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | 7:53 |
— | — | 6 | 11 | 3 | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | |
Temp °C | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 12 | 14 | 16 | 16 | 12 | 11 | 11 | 9 | 8 | 10 | 12 | 12 | 9 | 8 | 8 |
6 | 7 | 7 | 7 | 9 | 10 | 11 | 9 | 7 | 9 | 10 | 13 | 13 | 8 | 6 | 6 | 7 | 4 | 6 | 8 | 8 | 2 | 1 | 2 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | S 6 | SSE 6 | S 7 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 | S 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 8 | SE 8 |
 kJ | 28 | 27 | 26 | 26 | 15 | 123 | 82 | 214 | 302 | 310 | 316 | 324 | 302 | 169 | 138 | 135 | 132 | 120 | 47 | 86 | 82 | 86 | 51 | 57 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | ESE 9 | SW 6 | ESE 9 | ESE 9 | E 9 | ESE 8 | SE 16 | S 16 | ESE 9 | ESE 8 | S 7 | S 8 | S 7 | SSE 7 | S 7 | SSE 7 | SSW 6 | SSW 6 | SE 10 |
| kJ | 5 | 5 | 5 | 5 | 5 | 15 | 58 | 15 | 15 | 14 | 14 | 10 | 5 | 101 | 88 | 87 | 72 | 39 | 42 | 25 | 15 | 8 | 12 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 10 | ESE 8 | SE 11 | S 16 | S 16 | S 16 | SE 16 | SE 16 | — | SE 12 | SSW 7 | SW 7 | S 15 | SE 8 | SSW 6 | SSW 6 | SW 4 | SE 11 | SSW 6 |
| kJ | — | — | — | — | — | 4 | 14 | 4 | 5 | 5 | 5 | 10 | 10 | — | 6 | 28 | 12 | 4 | 45 | 4 | 4 | 2 | 19 | 7 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 6 | SSW 6 | S 6 | S 6 | — | — | — | — | — | — | — | — | N 2 | N 3 | N 3 | — | SSW 7 | SW 7 | SW 4 | WSW 4 | NW 3 | NNW 4 | N 4 |
| kJ | 111 | 109 | 145 | 146 | 165 | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | 18 | 46 | 15 | 13 | 9 | 10 | 13 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 133 | 197 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 0 | 24 | 0 | 0 | 0 | 24 | 24 | 24 | 24 | 26 | 142 | 152 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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