Surf Forecasts:
How big are the waves at Block Island today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 7s period with ESE swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 1.5ft (0.4m), 7s period with SE swell.
- Evening surf: Evening surf (20 Aug, local time) - 1.5ft (0.4m), 7s period with SE swell.
The current surf forecast for Block Island at 10AM is: 0.4m 7s primary swell from a East-southeast direction and 0.3m 9s secondary swell from a Southeast direction, 0.3m 3s secondary swell from a Southwest direction (forecast issued at 07:00am August 20). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 1.5ft (0.4m) | 7s |
| Afternoon (20 Aug) | 1.5ft (0.4m) | 7s |
| Evening (20 Aug) | 1.5ft (0.4m) | 7s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 39mm), heaviest during Sat afternoon. Warm (max 25°C on Thu afternoon, min 17°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||||||||
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) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 7 | ESE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ENE 4 | ENE 5 | ENE 5 | SE 8 | ESE 8 | SE 8 | ESE 8 | E 4 | ESE 8 | SE 4 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 20 | 20 | 20 | 20 | 12 | 12 | 27 | 18 | 19 | 18 | 18 | 18 | 22 | 34 | 37 | 32 | 17 | 12 | 16 | 24 | 13 | 66 | 22 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-on | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off |
High Tide | 2:56PM0.80m | 3:09AM0.60m | 4:02PM0.79m | 4:20AM0.60m | 5:03PM0.80m | ||||||||||||||||||
Low Tide | 7:19AM0.23m | 9:43PM0.27m | 8:42AM0.25m | 10:43PM0.26m | 10:14AM0.24m | ||||||||||||||||||
 |  |  | |  |  |  | | | | | | | | |  | | |  | |  | | | |
 | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:35 | — | — |
mm | — | — | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | 4 | 3 | 23 | 1 | — |
Temp °C | 25 | 24 | 24 | 25 | 25 | 24 | 18 | 18 | 17 | 18 | 20 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 20 | 21 | 20 | 19 | 19 |
Feels °C | 26 | 25 | 25 | 24 | 24 | 22 | 14 | 14 | 14 | 16 | 18 | 21 | 21 | 21 | 19 | 19 | 17 | 16 | 19 | 20 | 20 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 7 | ESE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 5 | SE 8 | ESE 8 | ESE 7 | SSE 9 | ESE 8 |
| kJ | 20 | 20 | 20 | 20 | 12 | 12 | 27 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 5 | 16 | 24 | 11 | 8 | 11 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SE 9 | SE 9 | SE 9 | SE 9 | S 5 | E 7 | E 8 | S 5 | S 5 | S 5 | SSW 5 | SSW 5 | SSW 5 | SSE 6 | SSE 5 | ESE 8 | SSE 5 | SSE 5 | SE 9 | SE 13 | SE 9 |
| kJ | 7 | 3 | 13 | 12 | 12 | 12 | 2 | 4 | 4 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 6 | 12 | 5 | 4 | 3 | 7 | 13 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | S 6 | S 5 | S 5 | S 5 | — | S 5 | S 5 | E 7 | E 7 | SE 14 | SE 14 | SE 14 | SE 14 | SSW 5 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SE 13 |
| kJ | 13 | 13 | 3 | 2 | 2 | 2 | — | 2 | 1 | 1 | 1 | 8 | 8 | 8 | 8 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 7 |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 3 | — | SSW 5 | SW 5 | WSW 2 | NW 2 | N 3 | NE 3 | NE 4 | NE 4 | ENE 4 | ENE 4 | ENE 4 | ENE 5 | ENE 5 | ENE 4 | NE 4 | NE 4 | ENE 4 | E 4 | ESE 8 | SE 4 |
| kJ | 1 | 1 | — | 3 | 3 | 1 | 2 | 5 | 5 | 10 | 16 | 19 | 22 | 34 | 37 | 32 | 24 | 26 | 19 | 15 | 13 | 66 | 22 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 29 | 29 | 159 | 1084 | 198 | 160 | 198 | 198 | 207 | 207 | 634 | 1084 | 634 | 634 | 198 | 204 | 207 | 769 | 665 | 1156 | 156 | 156 | 161 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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