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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 am 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 7AM is: 1.5m 6s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a Southeast direction, 0.4m 9s secondary swell from a Southeast direction (forecast issued at 01:00am May 19). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 5ft (1.5m) | 6s |
| Afternoon (19 May) | 5ft (1.6m) | 6s |
| Evening (19 May) | 6.5ft (2.0m) | 6s |
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 Wed night. Warm (max 22°C on Wed morning, min 10°C on Thu night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the S by Thu night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SE 9 | SE 9 | SE 9 | |
93 | 143 | 149 | 149 | 154 | 211 | 303 | 304 | 332 | 295 | 244 | 193 | 181 | 231 | 139 | 154 | 129 | 102 | 83 | 57 | 40 | 29 | 29 | 28 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | 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 | |
High Tide | 10:30AM0.87m | 10:54PM1.07m | 11:28AM0.85m | 11:51PM0.99m | 12:31PM0.84m | |||||||||||||||||||
Low Tide | 4:47AM-0.07m | 4:09PM-0.06m | 5:47AM-0.04m | 5:15PM-0.00m | 6:48AM-0.00m | 6:36PM0.06m | ||||||||||||||||||
 | |  | |  | | | | | | | | |  | |  |  | |  | | | | | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:01 | — | — | — | — | — | — | — | 8:02 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 11 | 2 | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 18 | 18 | 18 | 20 | 18 | 19 | 19 | 19 | 18 | 20 | 22 | 21 | 19 | 21 | 19 | 15 | 14 | 13 | 14 | 15 | 12 | 10 | 11 |
15 | 14 | 15 | 15 | 17 | 13 | 14 | 15 | 15 | 14 | 17 | 20 | 17 | 16 | 21 | 14 | 10 | 10 | 8 | 9 | 10 | 8 | 6 | 8 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 |
 kJ | 27 | 14 | 20 | 54 | 43 | 44 | 44 | 46 | 38 | 39 | 29 | 28 | 29 | 29 | 92 | 154 | 129 | 102 | 83 | 57 | 40 | 29 | 29 | 27 |
Swell 2 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 9 | SE 13 | SE 13 | S 16 | S 16 | S 16 | S 16 | S 15 | S 16 | SE 15 | S 15 | S 15 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | 7 | 7 | 22 | 7 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | 9 | 4 | 4 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 28 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 13 | S 16 | — | S 13 | — | — | — | — | — | E 12 | SE 12 | S 12 | S 15 | S 15 | SE 15 | SE 14 | SE 14 | SE 14 | NE 3 | NE 4 | ENE 4 | E 4 |
| kJ | — | — | 7 | 5 | — | 3 | — | — | — | — | — | 3 | 6 | 3 | 4 | 4 | 8 | 8 | 8 | 8 | 3 | 3 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SW 6 | — | NW 3 | NW 3 | N 3 | NNE 3 | NE 4 | SE 3 | SSE 3 | — |
| kJ | 93 | 143 | 149 | 149 | 154 | 211 | 303 | 304 | 332 | 295 | 244 | 193 | 181 | 231 | 139 | — | 3 | 4 | 5 | 7 | 14 | 2 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 204 | 249 | 216 | 24 | 24 | 195 | 152 | 40 | 40 | 195 | 29 | 221 | 219 | 24 | 0 | 24 | 0 | 24 | 24 | 25 | 25 | 642 | 645 | 689 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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