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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 Thursday 30 Apr 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
7.6° C
(Which is slightly cooler than normal)How big are the waves at Block Island today?
The current surf forecast for Block Island at 6PM is: 1.2m 10s primary swell from a East-southeast direction (forecast issued at 01:00pm April 30). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 4.5ft (1.3m) | 10s |
| Afternoon (30 Apr) | 4.5ft (1.3m) | 10s |
| Evening (30 Apr) | 4ft (1.2m) | 10s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Sat night. Very mild (max 12°C on Fri night, min 7°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
325 | 295 | 253 | 248 | 248 | 210 | 197 | 153 | 149 | 146 | 116 | 106 | 103 | 79 | 77 | 75 | 75 | 75 | 77 | 77 | 79 | 82 | 82 | 80 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-on | cross-on | cross-on | on | cross-off | off | off | off | |
High Tide | 8:08PM0.97m | 8:29AM0.75m | 8:46PM0.96m | 9:07AM0.73m | 9:22PM0.94m | |||||||||||||||||||
Low Tide | 1:41PM0.04m | 2:33AM-0.01m | 2:03PM0.05m | 3:10AM0.00m | 2:26PM0.06m | 3:45AM0.03m | ||||||||||||||||||
 | |  |  |  | | |  | | | |  | | | | | | | |  | | | |  | |
 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — |
 | — | — | 7:40 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:44 | — | — | — | — | 7:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 4 | 5 | 2 | |
Temp °C | 8 | 9 | 9 | 10 | 10 | 10 | 8 | 7 | 10 | 11 | 11 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 8 |
7 | 7 | 6 | 7 | 7 | 6 | 3 | 3 | 5 | 4 | 4 | 5 | 4 | 4 | 5 | 8 | 7 | 5 | 5 | 6 | 6 | 5 | 4 | 3 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 325 | 295 | 253 | 248 | 248 | 210 | 197 | 153 | 149 | 146 | 116 | 106 | 103 | 79 | 77 | 75 | 75 | 75 | 77 | 77 | 79 | 82 | 82 | 80 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 7 | S 6 | S 6 | SW 4 | SSW 6 | — | SSW 5 | SW 5 | SW 4 | SSW 4 | SSW 4 | SW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 13 | 3 | — | 3 | 1 | 4 | 1 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 6 | — | — | — | SW 5 | S 5 | SW 5 | S 5 | S 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | 1 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WNW 2 | NW 3 | NW 3 | WNW 3 | W 4 | WSW 4 | WSW 4 | SW 4 | SW 4 | SW 4 | WSW 4 | SW 5 | SSW 5 | SSW 4 | SSW 4 | — | — | — | — |
| kJ | — | — | — | — | — | 1 | 4 | 5 | 4 | 12 | 16 | 18 | 26 | 26 | 14 | 18 | 10 | 14 | 12 | 7 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 26 | 130 | 131 | 26 | 26 | 82 | 24 | 24 | 133 | 138 | 49 | 59 | 24 | 29 | 29 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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