Surf Forecasts:
How big are the waves at Block Island today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 4ft (1.2m), 5s period with S swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 4.5ft (1.4m), 6s period with S swell.
- Evening surf: Evening surf (17 Aug, local time) - 4.5ft (1.3m), 6s period with S swell.
The current surf forecast for Block Island at 11AM is: 1.3m 5s primary swell from a South direction (forecast issued at 07:00am August 17). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 4ft (1.2m) | 5s |
| Afternoon (17 Aug) | 4.5ft (1.4m) | 6s |
| Evening (17 Aug) | 4.5ft (1.3m) | 6s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Mon morning. Warm (max 26°C on Wed night, min 20°C on Mon morning). Winds decreasing (fresh winds from the SSE on Mon morning, calm by Wed night). | |||||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 5 | S 5 | S 5 | S 6 | S 6 | S 6 | S 6 | SSE 6 | SSE 6 | SSE 7 | S 7 | S 7 | SE 8 | SSE 8 | SSE 7 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 6 | SE 6 | SE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 47 | 68 | 95 | 134 | 170 | 148 | 112 | 119 | 108 | 93 | 103 | 64 | 77 | 99 | 78 | 50 | 63 | 57 | 52 | 51 | 39 | 27 | 21 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:04PM0.96m | 00:13AM0.76m | 12:54PM0.90m | 1:02AM0.69m | 1:51PM0.84m | ||||||||||||||||||
Low Tide | 5:24AM0.07m | 6:30PM0.15m | 5:54AM0.13m | 7:31PM0.20m | 6:30AM0.19m | 8:37PM0.25m | |||||||||||||||||
 |  | |  |  |  | |  |  | | |  | | | | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:39 | — | — |
mm | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 21 | 23 | 24 | 23 | 22 | 22 | 21 | 21 | 23 | 23 | 25 | 25 | 24 | 22 | 21 | 21 | 22 | 24 | 25 | 26 | 26 |
Feels °C | 17 | 16 | 18 | 23 | 27 | 25 | 23 | 23 | 22 | 22 | 26 | 24 | 27 | 26 | 25 | 24 | 23 | 23 | 25 | 26 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 8 | — | — | SE 8 | S 6 | S 6 | S 6 | SSE 6 | SSE 6 | SSE 7 | S 7 | S 7 | SE 8 | SSE 8 | SSE 7 | SE 8 | S 6 | SE 8 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 |
| kJ | 11 | — | — | 11 | 170 | 148 | 112 | 119 | 108 | 93 | 103 | 61 | 77 | 99 | 78 | 50 | 29 | 57 | 52 | 51 | 39 | 27 | 17 |
Swell 2 Height (m) Direction Period (s) | S 9 | — | — | — | — | SE 9 | — | S 14 | S 13 | SSE 8 | ENE 4 | SE 8 | S 7 | SSE 12 | SSE 11 | SSW 7 | SE 8 | SSW 6 | SSW 6 | SSW 6 | SSE 9 | SE 9 | SE 8 |
| kJ | 2 | — | — | — | — | 3 | — | 4 | 3 | 35 | 3 | 64 | 32 | 13 | 12 | 35 | 63 | 12 | 13 | 7 | 8 | 14 | 21 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 13 | S 13 | SE 12 | SE 12 | SSE 11 | SSE 11 | SSE 11 | SE 11 | SSE 7 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 3 | 6 | 6 | 13 | 12 | 12 | 5 | 9 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | S 5 | S 5 | S 6 | — | — | — | — | NNE 2 | NNE 3 | NE 4 | — | — | — | SW 3 | WNW 3 | WNW 3 | — | — | — | SW 2 | SSW 6 | SSW 6 |
| kJ | 47 | 68 | 95 | 134 | — | — | — | — | 1 | 1 | 4 | — | — | — | 3 | 2 | 1 | — | — | — | 1 | 18 | 18 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 311 | 217 | 163 | 99 | 24 | 0 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 24 | 24 | 24 | 24 | 161 | 24 | 152 | 152 | 195 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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