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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 7 pm Monday 11 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
8.6° C
(Which is 1.5°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 12AM is: 0.9m 7s primary swell from a Southeast direction and 0.3m 10s secondary swell from a Southeast direction, 0.7m 6s secondary swell from a South-southwest direction (forecast issued at 07:00pm May 11). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 2.5ft (0.8m) | 8s |
| Afternoon (12 May) | 2.5ft (0.7m) | 8s |
| Evening (12 May) | 3ft (0.9m) | 4s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 14°C on Wed night, min 9°C on Mon night). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the SSE by Thu afternoon). | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | S 6 | S 6 | S 6 | SSW 6 | S 6 | SSW 6 | |
113 | 82 | 77 | 49 | 54 | 76 | 51 | 50 | 31 | 30 | 40 | 31 | 26 | 32 | 39 | 69 | 121 | 154 | 193 | 175 | 148 | 61 | 75 | 43 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | off | off | off | off | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | |
High Tide | 4:06PM0.78m | 4:19AM0.72m | 4:57PM0.87m | 5:17AM0.76m | 5:45PM0.97m | 6:10AM0.80m | ||||||||||||||||||
Low Tide | 10:43PM0.14m | 10:26AM0.06m | 11:36PM0.06m | 11:10AM0.01m | 00:26AM-0.01m | 11:55AM-0.04m | ||||||||||||||||||
 |  |  | |  |  | |  | | | | | | | | | | | | | | | |  | |
 | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — |
 | 7:52 | — | — | — | — | — | — | — | 7:53 | — | — | — | — | — | — | — | 7:54 | — | — | — | — | — | — | 7:55 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | |
Temp °C | 12 | 10 | 10 | 10 | 9 | 9 | 12 | 12 | 13 | 13 | 11 | 11 | 10 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 12 | 12 |
6 | 5 | 6 | 3 | 2 | 3 | 8 | 6 | 6 | 5 | 4 | 5 | 4 | 5 | 4 | 3 | 5 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | ESE 10 | SSW 6 | ESE 10 | ESE 5 |
 kJ | 113 | 82 | 77 | 49 | 54 | 76 | 51 | 50 | 31 | 30 | 29 | 19 | 16 | 16 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 61 | 9 | 14 |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 10 | SE 7 | SE 7 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | E 7 | ESE 6 | ESE 10 | ESE 10 | ESE 5 | ESE 10 |
| kJ | 8 | 8 | 17 | 24 | 26 | 7 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 8 | 8 | 10 | 10 | 20 | 10 |
Swell 3 Height (m) Direction Period (s) | S 15 | SE 11 | SE 14 | SSW 4 | SSW 6 | SE 11 | S 6 | NNE 3 | — | NE 4 | — | — | — | — | — | — | E 11 | E 11 | — | ESE 10 | E 7 | E 7 | ESE 10 | ESE 10 |
| kJ | 4 | 20 | 8 | 5 | 13 | 18 | 6 | 1 | — | 1 | — | — | — | — | — | — | 2 | 2 | — | 10 | 1 | 4 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | S 7 | S 7 | SSW 6 | SW 3 | NW 3 | NNW 3 | N 3 | W 3 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | S 6 | S 6 | S 6 | SE 5 | S 6 | SSW 6 |
| kJ | 23 | 33 | 40 | 6 | 6 | 8 | 6 | 1 | 9 | 28 | 40 | 31 | 26 | 32 | 39 | 69 | 121 | 154 | 193 | 175 | 148 | 42 | 75 | 43 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 26 | 26 | 26 | 24 | 36 | 152 | 198 | 195 | 160 | 160 | 161 | 198 | 1095 | 1008 | 1084 | 397 | 608 | 340 | 217 | 178 | 152 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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