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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 Tuesday 19 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
10.6° C
(Which is slightly cooler than normal)How big are the waves at Block Island today?
The current surf forecast for Block Island at 8PM is: 2.1m 7s primary swell from a South-southwest direction and 0.5m 9s secondary swell from a Southeast direction, 0.1m 16s secondary swell from a South direction (forecast issued at 01:00pm May 19). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 5ft (1.5m) | 6s |
| Afternoon (19 May) | 5.5ft (1.7m) | 6s |
| Evening (19 May) | 7ft (2.1m) | 7s |
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 31mm), heaviest during Wed night. Warm (max 24°C on Wed afternoon, min 9°C on Thu night). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Thu night). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | SE 9 | SE 9 | SE 9 | |
154 | 173 | 241 | 362 | 353 | 323 | 303 | 251 | 199 | 165 | 181 | 193 | 154 | 125 | 99 | 75 | 57 | 40 | 41 | 41 | 39 | 28 | 26 | 29 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross-on | cross-on | on | on | glassy | off | cross-off | |
High Tide | 10:30AM0.87m | 10:54PM1.07m | 11:28AM0.85m | 11:51PM0.99m | 12:31PM0.84m | 00:51AM0.91m | ||||||||||||||||||
Low Tide | 4:09PM-0.06m | 5:47AM-0.04m | 5:15PM-0.00m | 6:48AM-0.00m | 6:36PM0.06m | 7:49AM0.02m | ||||||||||||||||||
 | | |  |  |  |  | | | |  |  |  | | |  | | | | | | |  | | |
 | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — |
 | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:01 | — | — | — | — | — | — | — | 8:02 | — | — | — | 8:04 |
— | — | — | — | 1 | — | — | — | — | — | 2 | 19 | 4 | — | — | 1 | 1 | — | 1 | 2 | — | — | — | — | |
Temp °C | 17 | 18 | 17 | 19 | 19 | 23 | 20 | 21 | 23 | 24 | 21 | 20 | 20 | 16 | 14 | 11 | 11 | 11 | 10 | 9 | 10 | 9 | 10 | 9 |
13 | 14 | 11 | 15 | 16 | 20 | 17 | 18 | 21 | 20 | 17 | 18 | 18 | 12 | 9 | 5 | 6 | 8 | 8 | 6 | 9 | 8 | 8 | 5 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 |
 kJ | 42 | 44 | 42 | 38 | 39 | 37 | 38 | 40 | 29 | 29 | 29 | 29 | 154 | 125 | 99 | 75 | 57 | 40 | 41 | 41 | 39 | 28 | 26 | 16 |
Swell 2 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 14 | S 16 | S 16 | S 16 | S 15 | S 16 | S 15 | S 15 | SE 12 | SE 14 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | E 3 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | 7 | 7 | 7 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 6 | 8 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 3 | 29 | 21 | 21 | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | S 16 | — | — | — | — | — | SE 12 | SE 12 | S 15 | — | S 15 | SE 15 | S 15 | SE 14 | SE 14 | SE 14 | SE 14 | SE 9 | E 3 | E 4 | SE 13 | SE 13 |
| kJ | — | — | 5 | — | — | — | — | — | 6 | 6 | 4 | — | 4 | 8 | 4 | 8 | 8 | 8 | 8 | 29 | 2 | 2 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | — | NW 3 | NW 3 | NNE 3 | NNE 4 | NE 4 | ENE 4 | — | — | — | E 4 | — |
| kJ | 154 | 173 | 241 | 362 | 353 | 323 | 303 | 251 | 199 | 165 | 181 | 193 | — | 2 | 2 | 8 | 19 | 11 | 6 | — | — | — | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 24 | 195 | 24 | 24 | 24 | 195 | 211 | 219 | 219 | 201 | 24 | 24 | 0 | 24 | 24 | 24 | 54 | 24 | 645 | 24 | 24 | 24 | 689 |
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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