Surf Forecasts:
How big are the waves at Greenhill today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 1ft (0.3m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 1ft (0.3m), 9s period with SE swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 6s period with ESE swell.
The current surf forecast for Greenhill at 8AM is: 0.3m 8s primary swell from a Southeast direction and 0.2m 5s secondary swell from a South direction (forecast issued at 01:00am August 21). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 1ft (0.3m) | 8s |
| Afternoon (21 Aug) | 1ft (0.3m) | 9s |
| Evening (21 Aug) | 3.5ft (1.0m) | 6s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sun morning. Warm (max 25°C on Sun afternoon, min 18°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | S 14 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 5 | E 5 | E 5 | ESE 5 | SE 7 | ESE 5 | SSE 9 | SE 12 | SE 4 | SSE 5 | SSE 5 | SSE 5 | SE 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 17 | 11 | 11 | 11 | 12 | 8 | 74 | 59 | 64 | 55 | 50 | 28 | 20 | 14 | 11 | 8 | 5 | 8 | 6 | 28 | 33 | 32 | 28 | 58 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross-on |
High Tide | 2:42AM0.86m | 3:29PM1.06m | 3:47AM0.85m | 4:31PM1.06m | 4:50AM0.87m | 5:27PM1.09m | ||||||||||||||||||
Low Tide | 8:45AM0.36m | 10:02PM0.43m | 9:48AM0.37m | 11:03PM0.42m | 10:49AM0.35m | |||||||||||||||||||
 | |  |  | | |  |  | | | | | | | | | | |  |  |  | | |  | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:36 | — | — | — | — | — | — | — | 7:34 | — | — |
mm | 3 | 4 | 2 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 5 | — | 1 | 1 | — | — |
Temp °C | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 19 | 20 | 19 | 19 | 18 | 19 | 19 | 21 | 24 | 25 | 23 | 23 |
Feels °C | 16 | 16 | 17 | 17 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 22 | 20 | 20 | 18 | 20 | 20 | 22 | 27 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SSW 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 5 | E 5 | E 5 | ESE 5 | SE 7 | ESE 5 | ESE 5 | SE 12 | SE 12 | SSE 12 | SSE 12 | SE 8 | SE 6 |
| kJ | 17 | 11 | 11 | 11 | 12 | 3 | 74 | 59 | 64 | 55 | 50 | 28 | 20 | 14 | 11 | 8 | 5 | 2 | 6 | 23 | 14 | 14 | 10 | 58 |
Swell 2 Height (m) Direction Period (s) | S 5 | S 5 | S 5 | S 15 | SW 6 | S 14 | SE 14 | S 5 | SE 14 | SE 14 | SE 13 | SE 13 | ESE 8 | ESE 8 | ESE 7 | E 5 | ESE 7 | ESE 7 | SE 8 | ESE 7 | SE 8 | SE 8 | SE 12 | SE 12 |
| kJ | 2 | 2 | 2 | 4 | 1 | 4 | 8 | 5 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 4 | 5 | 5 | 3 | 5 | 3 | 3 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | S 15 | S 15 | S 15 | S 6 | SE 14 | — | SE 14 | — | SE 14 | S 5 | SE 9 | SE 13 | SE 9 | SSE 9 | SE 9 | SE 9 | SSE 9 | — | — | E 7 | E 7 | SSE 12 | — |
| kJ | — | 4 | 4 | 4 | 1 | 8 | — | 8 | — | 7 | 1 | 3 | 7 | 3 | 8 | 3 | 3 | 8 | — | — | 1 | 1 | 14 | — |
Wind waves Height (m) Direction Period (s) | NE 3 | ENE 4 | ENE 4 | ENE 5 | ENE 5 | ENE 5 | NE 5 | NE 4 | NE 4 | NNE 4 | NNE 4 | NNE 4 | — | — | — | — | — | — | E 3 | SE 4 | SSE 5 | SSE 5 | SSE 5 | SSW 5 |
| kJ | 6 | 16 | 34 | 75 | 85 | 98 | 30 | 27 | 27 | 16 | 10 | 5 | — | — | — | — | — | — | 4 | 28 | 33 | 32 | 28 | 14 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 176 | 185 | 185 | 624 | 386 | 764 | 0 | 0 | 0 | 0 | 6 | 43 | 147 | 149 | 120 | 120 | 131 | 173 | 173 | 6 | 54 | 120 | 120 | 11 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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