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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 am 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 12PM is: 1.1m 8s primary swell from a Southeast direction and 0.5m 7s secondary swell from a South direction (forecast issued at 07:00am May 11). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 4ft (1.2m) | 8s |
| Afternoon (11 May) | 3.5ft (1.0m) | 8s |
| Evening (11 May) | 3ft (0.9m) | 7s |
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 4mm), mostly falling on Mon morning. Very mild (max 14°C on Tue afternoon, min 8°C on Mon morning). Winds increasing (light winds from the NNE on Mon morning, strong winds from the S by Wed night). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | SW 4 | WSW 4 | SW 4 | SW 5 | SW 5 | SW 4 | S 5 | SSW 6 | SSW 6 | S 6 | S 7 | |
103 | 169 | 149 | 116 | 113 | 94 | 77 | 49 | 54 | 67 | 51 | 50 | 31 | 30 | 32 | 34 | 35 | 35 | 29 | 61 | 161 | 222 | 324 | 355 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | off | off | off | off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | |
High Tide | 3:18AM0.70m | 4:06PM0.78m | 4:19AM0.72m | 4:57PM0.87m | 5:17AM0.76m | 5:45PM0.97m | ||||||||||||||||||
Low Tide | 9:42AM0.11m | 10:43PM0.14m | 10:26AM0.06m | 11:36PM0.06m | 11:10AM0.01m | 00:26AM-0.01m | ||||||||||||||||||
 |  |  | | |  |  | | |  | |  | | |  | | | | | | | | | | |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | 5:28 |
 | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:53 | — | — | — | — | — | — | — | 7:54 | — | — | 7:55 |
2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 8 | 10 | 11 | 12 | 12 | 12 | 10 | 9 | 9 | 12 | 13 | 14 | 14 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 13 | 14 | 13 |
4 | 3 | 7 | 8 | 7 | 7 | 9 | 3 | 1 | 3 | 8 | 7 | 7 | 7 | 5 | 4 | 5 | 5 | 4 | 3 | 5 | 5 | 6 | 8 | |
Swell 1 Height (m) Direction Period (s) | S 7 | SE 8 | SE 8 | SE 8 | 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 |
 kJ | 70 | 169 | 149 | 116 | 113 | 94 | 77 | 49 | 54 | 67 | 51 | 50 | 31 | 30 | 29 | 19 | 16 | 16 | 16 | 9 | 9 | 9 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SSW 7 | S 7 | S 7 | S 7 | S 7 | SE 10 | SE 7 | SE 7 | S 6 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | E 7 | E 7 |
| kJ | 103 | 15 | 24 | 23 | 23 | 22 | 17 | 24 | 26 | 7 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 10 | 10 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 8 | E 8 | — | S 15 | SE 15 | SE 15 | SE 14 | S 6 | S 6 | SE 10 | S 6 | S 6 | — | NE 5 | — | — | — | — | S 9 | SE 10 | — | E 11 | — | — |
| kJ | 57 | 5 | — | 4 | 8 | 8 | 8 | 12 | 7 | 17 | 6 | 3 | — | 1 | — | — | — | — | 1 | 16 | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | N 3 | NNE 3 | — | — | — | S 6 | SW 3 | NW 3 | NNW 4 | N 4 | WNW 3 | WSW 3 | SW 4 | WSW 4 | SW 4 | SW 5 | SW 5 | SW 4 | S 5 | SSW 6 | SSW 6 | S 6 | S 7 |
| kJ | 2 | 5 | 4 | — | — | — | 20 | 5 | 10 | 11 | 6 | 3 | 8 | 22 | 32 | 34 | 35 | 35 | 29 | 61 | 161 | 222 | 324 | 355 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 24 | 0 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 24 | 24 | 152 | 133 | 195 | 160 | 160 | 160 | 198 | 1687 | 1148 | 1084 | 612 | 24 |
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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