Surf Forecasts:
How big are the waves at Greenhill today (18 Aug):
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.1m), 6s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.1m), 6s period with SSE swell.
The current surf forecast for Greenhill at 12AM is: 1.0m 6s primary swell from a South direction (forecast issued at 07:00pm August 17). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | - | - |
| Afternoon (18 Aug) | 3.5ft (1.1m) | 6s |
| Evening (18 Aug) | 3.5ft (1.1m) | 6s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 19°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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 | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | SSE 7 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 6 | SE 7 | SE 7 | SE 7 | SSE 6 | SE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 85 | 95 | 82 | 62 | 51 | 51 | 94 | 99 | 81 | 43 | 41 | 41 | 39 | 25 | 43 | 37 | 27 | 15 | 9 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | glassy | cross-on | on | on | cross-on | cross | cross-off | glassy | on | cross-on | on | cross-on | cross-on |
High Tide | 00:10AM1.06m | 12:42PM1.20m | 00:55AM0.98m | 1:32PM1.14m | |||||||||||||||
Low Tide | 6:13PM0.22m | 6:15AM0.20m | 7:03PM0.30m | 6:59AM0.26m | 7:57PM0.37m | ||||||||||||||
 |  | |  | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | 7:43 | — | — | — | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:39 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 20 | 19 | 20 | 24 | 25 | 24 | 23 | 23 | 22 | 22 | 22 | 26 | 27 | 27 | 25 | 24 |
Feels °C | 21 | 23 | 23 | 21 | 20 | 21 | 26 | 27 | 25 | 25 | 25 | 23 | 23 | 23 | 27 | 27 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 6 | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | SSE 7 | SSE 8 | SSE 8 | S 7 | S 7 | SE 8 | SE 8 | SE 6 | SE 7 | SE 7 | SE 7 | SSE 6 | SE 6 |
| kJ | 85 | 95 | 82 | 62 | 51 | 51 | 94 | 99 | 81 | 38 | 34 | 41 | 39 | 25 | 43 | 37 | 27 | 15 | 9 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SE 9 | — | E 4 | S 14 | S 13 | S 13 | S 12 | S 12 | SE 8 | SE 8 | S 7 | S 7 | S 7 | SSW 6 | SSW 6 | SSE 10 | S 6 | ESE 6 |
| kJ | 6 | 3 | — | 2 | 4 | 3 | 3 | 3 | 3 | 43 | 41 | 23 | 21 | 14 | 13 | 7 | 9 | 6 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 14 | S 14 | — | — | — | SE 12 | SE 12 | SE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SE 9 | ESE 6 | SSW 6 |
| kJ | — | — | — | 4 | 4 | — | — | — | 6 | 5 | 5 | 12 | 11 | 11 | 10 | 9 | 14 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | E 3 | NE 4 | ENE 4 | NNE 2 | NE 4 | NE 4 | — | — | — | — | — | — | — | — | — | — | SSW 6 | SW 3 | SW 3 |
| kJ | 6 | 3 | 5 | 1 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | 15 | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 126 | 0 | 0 | 0 | 6 | 6 | 0 | 11 | 11 | 11 | 11 | 11 | 0 | 11 | 38 | 43 | 150 | 176 | 150 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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