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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 Wednesday 20 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
11.5° C
(Which is normal for this time of year)How big are the waves at Greenhill today?
The current surf forecast for Greenhill at 6AM is: 1.5m 7s primary swell from a South-southwest direction and 0.4m 9s secondary swell from a Southeast direction, 0.1m 16s secondary swell from a South direction (forecast issued at 01:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 4.5ft (1.4m) | 7s |
| Afternoon (20 May) | 4.5ft (1.3m) | 6s |
| Evening (20 May) | 4.5ft (1.3m) | 6s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Wed night. Warm (max 28°C on Wed afternoon, min 9°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 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 |    |    |    | |||||||||||||||||||||
SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 | |
237 | 256 | 186 | 149 | 144 | 151 | 140 | 141 | 93 | 73 | 56 | 55 | 39 | 29 | 29 | 20 | 20 | 18 | 13 | 13 | 13 | 14 | 14 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross-off | off | off | off | off | cross-on | cross-on | glassy | off | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | |
High Tide | 11:28AM1.11m | 11:58PM1.36m | 12:32PM1.09m | 1:01AM1.26m | 1:39PM1.09m | |||||||||||||||||||
Low Tide | 5:28AM0.09m | 5:28PM0.11m | 6:28AM0.14m | 6:34PM0.18m | 7:29AM0.18m | 7:44PM0.23m | ||||||||||||||||||
 | |  |  | |  |  |  |  |  |  | | |  | |  | | | | | | | | | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:01 | — | — | — | — | — | — | — | 8:02 | — | — | — | — | — | — | — | 8:04 | — |
— | — | — | — | — | 1 | 7 | 6 | 2 | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 22 | 26 | 28 | 24 | 21 | 18 | 16 | 16 | 14 | 9 | 11 | 12 | 11 | 11 | 11 | 10 | 10 | 13 | 14 | 13 | 12 | 12 |
17 | 17 | 21 | 25 | 26 | 23 | 20 | 15 | 14 | 14 | 11 | 5 | 9 | 10 | 9 | 11 | 10 | 7 | 6 | 9 | 10 | 9 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SSE 6 | SSE 6 | SSE 6 |
 kJ | 18 | 20 | 20 | 21 | 21 | 21 | 140 | 141 | 93 | 73 | 56 | 55 | 39 | 29 | 29 | 20 | 20 | 18 | 11 | 10 | 6 | 7 | 7 | 14 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | E 4 | ESE 4 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 |
| kJ | 5 | 5 | 5 | 4 | 4 | 4 | 21 | 21 | 21 | 21 | 21 | 13 | 12 | 12 | 5 | 3 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 12 | — | S 12 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | SE 9 | SE 9 | ESE 4 | ESE 4 | S 13 | S 13 | SSE 7 | SE 13 | E 3 | SE 13 |
| kJ | — | — | — | 6 | — | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 1 | 1 | 3 | 3 | 5 | 7 | 1 | 7 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | — | — | NW 2 | N 3 | NE 3 | NE 3 | ENE 4 | E 4 | — | — | — | — | ENE 3 | E 4 | ESE 4 | ESE 4 | SE 4 | — |
| kJ | 237 | 256 | 186 | 149 | 144 | 151 | — | — | 1 | 1 | 2 | 1 | 5 | 5 | — | — | — | — | 9 | 7 | 5 | 3 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 21 | 190 | 225 | 227 | 12 | 12 | 13 | 11 | 0 | 0 | 0 | 0 | 6 | 165 | 632 | 164 | 165 | 61 | 768 | 768 | 712 | 696 | 684 | 227 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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