Surf Forecasts:
How big are the waves at Greenhill today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 1ft (0.3m), 9s period with SE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
- Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 8s period with SE swell.
The current surf forecast for Greenhill at 1PM is: 0.4m 9s primary swell from a Southeast direction and 0.1m 5s secondary swell from a Southwest direction (forecast issued at 07:00am September 21). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 1ft (0.3m) | 9s |
| Afternoon (21 Sep) | 1.5ft (0.4m) | 9s |
| Evening (21 Sep) | 1.5ft (0.4m) | 8s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Mon morning. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||||
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 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | E 7 | ESE 7 | E 7 | E 7 | E 7 | E 6 | E 6 | E 7 | E 8 | E 6 | E 6 | E 7 | E 9 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 19 | 12 | 19 | 19 | 19 | 17 | 24 | 150 | 96 | 158 | 255 | 278 | 228 | 0 | 298 | 282 | 0 | 332 | 481 | 881 | 596 | 648 | 755 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:23AM0.88m | 4:51PM1.05m | 5:18AM0.95m | 5:39PM1.10m | 6:04AM1.04m | 6:21PM1.15m | |||||||||||||||||
Low Tide | 10:22AM0.39m | 11:17PM0.36m | 11:19AM0.33m | 11:58PM0.29m | 12:08PM0.27m | ||||||||||||||||||
 |  | |  | |  | |  | |  | | | | | | |  | | | | | | | |
 | 6:31 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 18 | 18 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 15 | 16 | 15 | 13 | 14 |
Feels °C | 10 | 8 | 10 | 14 | 13 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 7 | 8 | 8 | 8 | 6 | 7 |
Swell 1 Height (m) Direction Period (s) | SE 4 | SE 4 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 7 | — | S 15 | S 14 | S 14 | — | — | — | — | — | — | — | ESE 10 | ESE 10 | ESE 10 |
| kJ | 13 | 7 | 19 | 19 | 19 | 17 | 24 | 21 | 96 | — | 4 | 4 | 4 | — | — | — | — | — | — | — | 596 | 648 | 755 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 6 | SW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 19 | 12 | 9 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 6 | SE 6 | SW 5 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 5 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 2 | NNE 3 | NE 4 | ENE 5 | ENE 5 | E 5 | E 6 | E 7 | NE 5 | E 7 | E 7 | E 7 | E 6 | E 6 | E 7 | E 8 | E 6 | E 6 | E 7 | E 9 | ENE 6 | NE 6 | NE 6 |
| kJ | 1 | 13 | 23 | 40 | 64 | 66 | 80 | 150 | 18 | 158 | 255 | 278 | 228 | 175 | 298 | 282 | 207 | 332 | 481 | 881 | 143 | 138 | 128 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 461 | 621 | 624 | 624 | 624 | 632 | 757 | 0 | 0 | 757 | 624 | 764 | 660 | 879 | 866 | 930 | 866 | 866 | 1056 | 2607 | 2607 | 780 | 758 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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