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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 Saturday 23 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
11.7° C
(Which is normal for this time of year)How big are the waves at Block Island today?
The current surf forecast for Block Island at 2AM is: 1.3m 8s primary swell from a Southeast direction and 0.1m 6s secondary swell from a South direction (forecast issued at 07:00pm May 23). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 7.5ft (2.3m) | 7s |
| Afternoon (24 May) | 8ft (2.5m) | 9s |
| Evening (24 May) | 8ft (2.5m) | 9s |
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 33mm), heaviest during Sun afternoon. Very mild (max 17°C on Mon morning, min 8°C on Sun morning). Winds decreasing (strong winds from the E on Sun morning, light winds from the SSE by Sun night). | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 7 | SE 7 | SE 7 | SE 8 | SE 6 | SE 7 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | |
69 | 75 | 89 | 181 | 193 | 422 | 692 | 868 | 1040 | 1124 | 1064 | 798 | 639 | 470 | 398 | 291 | 260 | 211 | 163 | 122 | 119 | 116 | 84 | 84 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-on | on | |
High Tide | 2:43PM0.85m | 3:00AM0.77m | 3:46PM0.87m | 4:03AM0.73m | 4:43PM0.89m | 5:00AM0.71m | ||||||||||||||||||
Low Tide | 9:15PM0.13m | 9:43AM0.05m | 10:20PM0.13m | 10:33AM0.07m | 11:17PM0.12m | 11:19AM0.08m | ||||||||||||||||||
 | |  |  | |  | |  | | | | | | | | | | | |  | | | | | |
 | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — |
 | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | 8:07 |
— | — | — | 1 | 3 | 4 | 3 | 7 | 5 | 3 | 1 | — | — | 1 | 4 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 13 | 12 | 10 | 9 | 8 | 9 | 10 | 11 | 12 | 13 | 16 | 16 | 17 | 15 | 14 | 15 | 16 | 17 | 17 | 16 | 16 | 15 | 14 |
10 | 8 | 7 | 4 | 2 | -1 | 0 | 2 | 4 | 6 | 10 | 16 | 16 | 17 | 14 | 13 | 13 | 14 | 16 | 17 | 14 | 14 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 7 | S 6 | S 6 | S 6 | — | S 18 | S 18 | S 18 | S 18 | S 18 | — | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSW 7 |
 kJ | 69 | 3 | 3 | 1 | — | 6 | 6 | 6 | 6 | 6 | — | 798 | 639 | 470 | 398 | 291 | 260 | 211 | 163 | 122 | 119 | 116 | 84 | 77 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 13 | S 13 | — | — | — | — | — | — | — | — | S 17 | S 16 | S 16 | S 16 | S 16 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 8 |
| kJ | 3 | 3 | 3 | — | — | — | — | — | — | — | — | 6 | 5 | 5 | 5 | 5 | 64 | 85 | 51 | 93 | 77 | 75 | 77 | 84 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 16 | S 16 | S 7 | — | S 16 | S 15 | S 15 | S 15 |
| kJ | 7 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 33 | — | 5 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | SE 7 | SE 7 | SE 8 | SE 6 | SE 7 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | — | — | S 6 | SSW 6 | SSW 6 | — | — | — | — | — | — | — | — |
| kJ | — | 75 | 89 | 181 | 193 | 422 | 692 | 868 | 1040 | 1124 | 1064 | — | — | 17 | 12 | 49 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 25 | 24 | 588 | 588 | 588 | 374 | 374 | 270 | 251 | 141 | 29 | 24 | 24 | 24 | 0 | 24 | 24 | 24 | 0 | 0 | 24 | 24 | 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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