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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 Saturday 21 Mar 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
2.9° C
(Which is 1.9°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 6PM is: 1.0m 7s primary swell from a South-southwest direction and 0.6m 8s secondary swell from a Southeast direction (forecast issued at 01:00pm March 21). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 5ft (1.6m) | 7s |
| Afternoon (21 Mar) | 4.5ft (1.3m) | 7s |
| Evening (21 Mar) | 3ft (0.9m) | 6s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 6 | 6 | 6 | 8 | 8 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 200 | 145 | 121 | 75 | 64 | 49 | 33 | 144 | 72 | 104 | 126 | 131 | 182 | 141 | 260 | 125 | 114 | 71 | 73 | 78 | 50 | 52 | 79 | 62 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- on | cross- on | on | on | on | cross- on | cross- on | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off |
High Tide / height (m) | 10:07AM 0.85 | 10:25PM 1.01 | 10:53AM 0.80 | 11:13PM 0.98 | 11:43AM 0.75 | 12:07AM 0.93 | ||||||||||||||||||
Low Tide / height (m) | 3:48PM -0.14 | 4:52AM -0.11 | 4:30PM -0.11 | 5:49AM -0.05 | 5:17PM -0.06 | 7:03AM 0.01 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:43 |
| Sunset | - | - | 6:59 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - |
 |  | |  | |  | | |  | | | |  |  | |  | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 10 | 11 | 14 | 7 | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 10 | 11 | 9 | 5 | 4 | 4 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 3 | 2 | 1 | 1 | 3 | 2 | 2 | 1 | 0 | -1 |
| Feels °C (?) | 5 | 7 | 7 | 5 | 0 | -1 | -2 | -2 | -1 | 0 | 1 | 3 | 4 | 2 | -6 | -7 | -8 | -7 | -3 | -2 | -3 | -7 | -8 | -9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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