Surf Forecasts:
How big are the waves at Greenhill today (21 Jul):
- Afternoon surf: Afternoon surf (21 Jul, local time) - 2.5ft (0.7m), 7s period with S swell.
- Evening surf: Evening surf (21 Jul, local time) - 2.5ft (0.7m), 7s period with S swell.
The current surf forecast for Greenhill at 12AM is: 0.7m 7s primary swell from a South direction and 0.1m 12s secondary swell from a South direction (forecast issued at 07:00pm July 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | - | - |
| Afternoon (21 Jul) | 2.5ft (0.7m) | 7s |
| Evening (21 Jul) | 2.5ft (0.7m) | 7s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Warm (max 26°C on Wed afternoon, min 16°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||
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 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSE 5 | SSE 5 | S 6 | S 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | S 8 | S 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 52 | 49 | 48 | 36 | 36 | 60 | 24 | 37 | 94 | 177 | 440 | 726 | 500 | 555 | 662 | 772 | 547 | 548 | 792 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-off |
High Tide | 1:42AM1.02m | 2:21PM1.16m | 2:33AM0.95m | 3:15PM1.13m | |||||||||||||||
Low Tide | 7:46PM0.28m | 7:50AM0.23m | 8:43PM0.34m | 8:38AM0.28m | 9:41PM0.38m | ||||||||||||||
 | |  | | | |  | |  |  |  | |  | |  | | | | | |
 | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | 8:15 | — | — | — | — | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:13 | — |
mm | — | — | — | — | — | — | — | — | 2 | 6 | 4 | 2 | — | — | 1 | — | — | — | — |
Temp °C | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 23 | 21 | 22 | 21 | 22 | 22 | 22 | 24 | 25 | 26 | 25 | 20 |
Feels °C | 20 | 20 | 20 | 19 | 20 | 20 | 20 | 21 | 20 | 22 | 19 | 20 | 21 | 22 | 23 | 25 | 25 | 25 | 16 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | SE 8 | S 7 | SSW 7 | — | — | — | — | — | — | — | — | — | — | S 9 |
| kJ | 52 | 49 | 48 | 36 | 36 | 3 | 24 | 15 | — | — | — | — | — | — | — | — | — | — | 792 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | S 12 | SE 8 | SE 8 | S 12 | SE 8 | S 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 6 | 3 | 3 | 3 | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | S 12 | SE 12 | SE 12 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 3 | 3 | 5 | 5 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | S 4 | S 7 | S 4 | SSE 5 | SSE 5 | S 6 | S 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | S 8 | — |
| kJ | — | — | — | 3 | 6 | 60 | 16 | 37 | 94 | 177 | 440 | 726 | 500 | 555 | 662 | 772 | 547 | 548 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 763 | 624 | 757 | 632 | 757 | 1170 | 1170 | 1170 | 1071 | 1170 | 632 | 1428 | 187 | 12 | 12 | 115 | 12 | 12 | 7 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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