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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 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 9AM is: 0.8m 6s primary swell from a South-southwest direction and 0.3m 9s secondary swell from a Southeast direction (forecast issued at 01:00am May 21). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 2.5ft (0.8m) | 6s |
| Afternoon (21 May) | 2ft (0.6m) | 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 ForecastMostly dry. Very mild (max 17°C on Thu morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | SE 9 | SE 9 | SE 10 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | ESE 5 | SE 6 | SE 7 | |
86 | 68 | 55 | 51 | 39 | 28 | 28 | 20 | 18 | 18 | 17 | 13 | 14 | 14 | 14 | 15 | 16 | 17 | 17 | 10 | 17 | 42 | 78 | 111 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | off | cross-off | cross | cross | cross | cross-off | off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 11:58PM1.36m | 12:32PM1.09m | 1:01AM1.26m | 1:39PM1.09m | 2:04AM1.18m | 2:45PM1.11m | ||||||||||||||||||
Low Tide | 6:28AM0.14m | 6:34PM0.18m | 7:29AM0.18m | 7:44PM0.23m | 8:28AM0.20m | 8:55PM0.27m | ||||||||||||||||||
 |  |  | | | | | | | |  | |  | | | | | | | | | | | | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:02 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 17 | 14 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 11 | 12 | 13 | 12 | 12 | 11 |
13 | 14 | 13 | 10 | 9 | 10 | 9 | 9 | 10 | 9 | 6 | 9 | 9 | 8 | 7 | 9 | 8 | 8 | 7 | 7 | 8 | 7 | 7 | 6 | |
Swell 1 Height (m) Direction Period (s) | S 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | S 13 | S 13 | S 12 |
 kJ | 86 | 68 | 55 | 51 | 39 | 28 | 28 | 20 | 18 | 18 | 17 | 10 | 6 | 14 | 12 | 15 | 16 | 17 | 17 | 10 | 17 | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | E 5 | ESE 4 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SE 10 | SSE 10 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | — | SE 13 | S 12 |
| kJ | 21 | 21 | 21 | 13 | 13 | 13 | 7 | 3 | 12 | 13 | 13 | 13 | 14 | 3 | 14 | 9 | 9 | 14 | 4 | 4 | 4 | — | 6 | 3 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | SE 9 | SE 9 | E 4 | S 14 | S 13 | S 13 | S 13 | SE 13 | S 6 | SE 13 | SE 13 | S 13 | S 6 | S 13 | S 13 | — | — | — |
| kJ | 4 | 4 | 4 | 4 | 4 | 4 | 13 | 12 | 1 | 4 | 3 | 3 | 3 | 7 | 1 | 7 | 7 | 4 | 1 | 3 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNE 2 | NE 3 | E 4 | E 5 | E 5 | — | — | — | ENE 2 | E 4 | ESE 4 | ESE 5 | E 4 | ENE 4 | ENE 4 | — | ENE 3 | E 4 | ESE 4 | ESE 5 | SE 6 | SE 7 |
| kJ | — | — | 1 | 5 | 13 | 16 | 17 | — | — | — | 1 | 9 | 31 | 39 | 17 | 5 | 1 | — | 4 | 13 | 19 | 42 | 78 | 111 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 6 | 164 | 632 | 663 | 164 | 700 | 708 | 691 | 708 | 700 | 712 | 712 | 605 | 605 | 722 | 725 | 605 | 505 | 1112 | 473 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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