Surf Forecasts:
How big are the waves at Block Island today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 4.5ft (1.4m), 5s period with S swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 4ft (1.2m), 6s period with SSW swell.
- Evening surf: Evening surf (17 Aug, local time) - 5ft (1.5m), 7s period with S swell.
The current surf forecast for Block Island at 2AM is: 0.9m 4s primary swell from a South-southwest direction and 0.3m 8s secondary swell from a Southeast direction (forecast issued at 07:00pm August 16). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 4.5ft (1.4m) | 5s |
| Afternoon (17 Aug) | 4ft (1.2m) | 6s |
| Evening (17 Aug) | 5ft (1.5m) | 7s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Mon afternoon. Warm (max 25°C on Wed afternoon, min 21°C on Sun night). Winds decreasing (fresh winds from the SSE on Mon afternoon, calm by Tue afternoon). | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | |||||||||||||||||
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 |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 6 | S 6 | SSW 4 | SSW 4 | S 4 | S 5 | S 6 | SSW 6 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 18 | 25 | 13 | 28 | 40 | 90 | 149 | 109 | 285 | 219 | 168 | 134 | 89 | 114 | 103 | 64 | 68 | 78 | 77 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-off | cross-off | cross-off | off | off | glassy | cross-on | on | cross-on |
High Tide | 11:28PM0.84m | 12:04PM0.96m | 00:13AM0.76m | 12:54PM0.90m | |||||||||||||||
Low Tide | 5:35PM0.08m | 5:24AM0.07m | 6:30PM0.15m | 5:54AM0.13m | 7:31PM0.20m | ||||||||||||||
 |  |  |  | |  | | |  | | | | |  | | |  |  | | |
 | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | 7:44 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:40 | — | — |
mm | — | — | — | 1 | 3 | 1 | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 21 | 21 | 22 | 23 | 23 | 24 | 22 |
Feels °C | 20 | 20 | 19 | 18 | 17 | 19 | 20 | 20 | 24 | 26 | 26 | 23 | 22 | 22 | 23 | 26 | 26 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | — | — | SSW 6 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 8 | SE 8 |
| kJ | 11 | 11 | 11 | 11 | 10 | — | — | 109 | 285 | 219 | 168 | 134 | 89 | 114 | 103 | 64 | 62 | 78 | 77 |
Swell 2 Height (m) Direction Period (s) | SE 6 | — | S 6 | — | — | — | — | — | — | — | — | E 5 | E 5 | E 4 | ENE 4 | SE 8 | SE 8 | S 7 | S 7 |
| kJ | 2 | — | 1 | — | — | — | — | — | — | — | — | 24 | 12 | 9 | 7 | 55 | 68 | 34 | 33 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 14 | SSE 8 | S 13 | S 13 | ENE 4 | ENE 4 | SSE 12 | SSE 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 4 | 26 | 3 | 3 | 3 | 2 | 13 | 12 |
Wind waves Height (m) Direction Period (s) | S 6 | S 6 | SSW 4 | SSW 4 | S 4 | S 5 | S 6 | SSE 5 | SE 6 | — | — | NNW 2 | NNE 3 | N 3 | NNW 2 | — | — | — | — |
| kJ | 18 | 25 | 13 | 28 | 40 | 90 | 149 | 90 | 111 | — | — | 1 | 3 | 1 | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2610 | 1494 | 1696 | 1696 | 878 | 201 | 117 | 81 | 24 | 24 | 0 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- 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
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Block Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest