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Greenhill Surf Forecast
/ Rhode Island (33 breaks) / Rhode Island (34 breaks) /
Surf Forecasts:
Greenhill surfForecast / Rhode Island / USA
48hr Weather and Surf, issued 1 am Monday 18 May 2026 EDTForecast update in hr min s Forecast update imminent
Greenhill surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Greenhill sea temperature is
10.4° C
(Which is slightly cooler than normal)How big are the waves at Greenhill today?
The current surf forecast for Greenhill at 5AM is: 0.7m 8s primary swell from a South-southeast direction and 0.8m 6s secondary swell from a South-southwest direction (forecast issued at 01:00am May 18). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.7m) | 7s |
| Afternoon (18 May) | 1.5ft (0.5m) | 7s |
| Evening (18 May) | 2.5ft (0.8m) | 5s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSE 8 | SSE 8 | SSW 7 | SSW 7 | SSE 8 | SSE 7 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 7 | |
96 | 58 | 60 | 34 | 44 | 31 | 30 | 34 | 41 | 55 | 71 | 80 | 90 | 111 | 190 | 181 | 241 | 216 | 186 | 163 | 180 | 202 | 170 | 117 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | off | cross-off | cross-off | cross | on | on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off | |
High Tide | 9:32AM1.17m | 10:02PM1.52m | 10:28AM1.14m | 10:59PM1.45m | 11:28AM1.11m | |||||||||||||||||||
Low Tide | 3:36AM0.01m | 3:31PM-0.01m | 4:31AM0.04m | 4:27PM0.04m | 5:28AM0.09m | 5:28PM0.11m | ||||||||||||||||||
 |  |  |  | | | |  | | | | | | | | |  | | | | |  | | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:01 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | 4 | — | |
Temp °C | 22 | 19 | 17 | 19 | 20 | 21 | 19 | 18 | 18 | 19 | 20 | 22 | 24 | 21 | 18 | 20 | 18 | 16 | 20 | 25 | 26 | 20 | 22 | 17 |
21 | 17 | 14 | 16 | 20 | 20 | 18 | 17 | 16 | 17 | 19 | 20 | 22 | 18 | 15 | 18 | 15 | 14 | 19 | 23 | 23 | 18 | 22 | 13 | |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SSW 6 | SSW 7 | SSW 7 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SE 7 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 7 |
 kJ | 96 | 54 | 60 | 34 | 44 | 31 | 30 | 20 | 27 | 27 | 34 | 33 | 33 | 33 | 22 | 27 | 25 | 27 | 20 | 21 | 21 | 21 | 170 | 117 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SSE 8 | SSE 8 | SSE 8 | SSW 6 | E 3 | E 4 | — | — | S 13 | S 13 | S 13 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | SE 9 | SE 9 |
| kJ | 55 | 58 | 33 | 33 | 22 | 1 | 1 | — | — | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 3 | S 14 | S 13 | S 13 | S 13 | — | — | S 16 | S 13 | S 13 | — | — | — | — | — | S 12 | SE 12 | S 12 | S 15 | S 15 |
| kJ | — | — | — | — | 2 | 4 | 4 | 4 | 3 | — | — | 5 | 3 | 4 | — | — | — | — | — | 3 | 6 | 3 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 3 | — | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | — | — |
| kJ | — | — | — | 2 | — | 19 | 24 | 34 | 41 | 55 | 71 | 80 | 90 | 111 | 190 | 181 | 241 | 216 | 186 | 163 | 180 | 202 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 0 | 0 | 461 | 9 | 624 | 624 | 176 | 176 | 224 | 182 | 227 | 227 | 227 | 660 | 12 | 223 | 176 | 21 | 412 | 227 | 227 | 0 | 7 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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