Surf Forecasts:
How big are the waves at Greenhill today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 7s period with SE 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) - 1ft (0.3m), 8s period with SE swell.
The current surf forecast for Greenhill at 6AM is: 0.4m 7s primary swell from a Southeast direction and 0.4m 6s secondary swell from a South-southeast direction, 0.2m 3s secondary swell from a South-southwest direction (forecast issued at 01:00am August 20). The wind direction is predicted to be cross-shore.
| 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) | 1ft (0.3m) | 8s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat morning. Warm (max 27°C on Thu afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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 9 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 5 | S 5 | S 5 | S 5 | SSE 5 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 20 | 12 | 12 | 11 | 12 | 11 | 11 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 10 | 10 | 10 | 8 | 13 | 13 | 12 | 26 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | glassy | on | cross-on | cross-off | glassy | glassy | cross-off | off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 1:44AM0.91m | 2:28PM1.09m | 2:42AM0.86m | 3:29PM1.06m | 3:47AM0.85m | 4:31PM1.06m | ||||||||||||||||||
Low Tide | 7:48AM0.32m | 8:57PM0.42m | 8:45AM0.36m | 10:02PM0.43m | 9:48AM0.37m | |||||||||||||||||||
 | |  | | |  |  |  | | | | | |  | | | | |  |  | | | |  | |
 | — | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:38 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:36 | — | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 8 | 3 | 7 | — | — |
Temp °C | 23 | 23 | 22 | 26 | 27 | 26 | 22 | 19 | 20 | 20 | 19 | 22 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 19 | 20 | 20 | 20 | 19 |
Feels °C | 24 | 25 | 22 | 27 | 26 | 26 | 19 | 20 | 21 | 20 | 17 | 20 | 22 | 21 | 21 | 20 | 20 | 18 | 18 | 18 | 22 | 22 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SSE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 5 | S 5 | S 5 | S 5 | SSE 5 |
| kJ | 20 | 10 | 11 | 11 | 11 | 11 | 7 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 10 | 10 | 10 | 8 | 13 | 13 | 12 | 13 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 7 | SSE 6 | SSW 5 | SE 9 | SE 8 | WSW 3 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | — | SW 5 | SSW 5 | SSW 5 | S 5 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 |
| kJ | 8 | 12 | 3 | 3 | 12 | 11 | 1 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | — | 1 | 3 | 3 | 2 | 6 | 6 | 6 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SSE 9 | SE 9 | S 6 | SE 9 | S 5 | SE 8 | — | — | — | — | — | S 14 | S 14 | SW 5 | — | SE 14 | SE 14 | SSW 5 | SSE 7 | SE 13 | SE 9 | SE 9 | E 3 |
| kJ | 3 | 8 | 12 | 2 | 12 | 2 | 11 | — | — | — | — | — | 4 | 4 | 1 | — | 7 | 7 | 3 | 4 | 7 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 3 | WSW 3 | — | SSW 5 | SW 3 | — | NNW 2 | — | — | — | — | — | — | E 3 | E 3 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 3 | SSE 5 |
| kJ | 1 | 1 | 1 | — | 5 | 1 | — | 1 | — | — | — | — | — | — | 2 | 5 | 9 | 12 | 23 | 25 | 13 | 6 | 3 | 26 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 92 | 43 | 43 | 150 | 1071 | 176 | 150 | 176 | 176 | 185 | 61 | 624 | 3397 | 757 | 624 | 176 | 182 | 185 | 1177 | 683 | 1177 | 70 | 95 | 126 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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