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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 7 pm Thursday 21 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
12.1° C
(Which is slightly warmer than usual)How big are the waves at Greenhill today?
The current surf forecast for Greenhill at 10PM is: 0.6m 6s primary swell from a South direction and 0.3m 9s secondary swell from a Southeast direction (forecast issued at 07:00pm May 21). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | - | - |
| Afternoon (21 May) | 2.5ft (0.7m) | 6s |
| Evening (21 May) | 2ft (0.6m) | 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 41mm), heaviest during Sun afternoon. Very mild (max 14°C on Thu night, min 9°C on Sat night). Winds increasing (calm on Thu night, strong winds from the E by Sun afternoon). | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 | ESE 5 | SE 5 | ESE 5 | SE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | |
28 | 28 | 28 | 19 | 18 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 17 | 29 | 44 | 86 | 155 | 226 | 320 | 408 | 625 | 777 | 848 | 1017 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | glassy | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | |
High Tide | 1:01AM1.26m | 1:39PM1.09m | 2:04AM1.18m | 2:45PM1.11m | 3:06AM1.11m | |||||||||||||||||||
Low Tide | 6:34PM0.18m | 7:29AM0.18m | 7:44PM0.23m | 8:28AM0.20m | 8:55PM0.27m | 9:24AM0.21m | ||||||||||||||||||
 | |  | |  |  |  | | | | | | | | | | |  |  | | |  |  | | |
 | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | — | 8:02 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | 8:06 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 1 | 2 | 6 | 12 | 13 | |
Temp °C | 15 | 14 | 13 | 14 | 11 | 10 | 13 | 14 | 13 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 11 | 9 | 9 | 10 | 10 | 9 | 9 | 10 |
13 | 13 | 12 | 12 | 5 | 3 | 7 | 8 | 7 | 6 | 7 | 8 | 7 | 6 | 7 | 7 | 6 | 5 | 5 | 6 | 5 | 2 | 1 | 3 | |
Swell 1 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSE 6 | S 6 | SSE 6 | SE 5 | S 7 | SE 10 | SE 10 | SE 10 | S 13 | S 6 | — | — | — | — | — | — |
 kJ | 28 | 28 | 28 | 19 | 18 | 11 | 10 | 6 | 7 | 6 | 6 | 4 | 4 | 4 | 4 | 4 | 3 | 1 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | ENE 4 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | S 6 | SE 10 | SE 9 | S 13 | S 13 | — | — | — | — | — | — | — | — |
| kJ | 5 | 13 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 3 | 4 | 3 | 3 | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 4 | E 4 | E 4 | S 14 | S 13 | S 13 | SSE 7 | SW 6 | SE 13 | SE 13 | SE 10 | SE 8 | S 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | 13 | 3 | 1 | 1 | 4 | 3 | 3 | 5 | 1 | 7 | 7 | 15 | 2 | 4 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 4 | ENE 4 | E 5 | E 5 | E 4 | E 4 | ESE 4 | ESE 5 | SE 5 | ESE 5 | SE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 |
| kJ | — | — | — | — | — | 14 | 31 | 48 | 47 | 26 | 17 | 10 | 17 | 29 | 44 | 86 | 155 | 226 | 320 | 408 | 625 | 777 | 848 | 1017 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 6 | 164 | 70 | 161 | 171 | 725 | 700 | 722 | 763 | 2589 | 2589 | 768 | 663 | 632 | 605 | 605 | 1112 | 1112 | 12 | 9 | 605 | 498 | 388 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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