Surf Forecasts:
Greenhill surf forecast from 18 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 2AM (local time) - 6ft (1.8m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 2AM (local time) - 6ft (1.8m), 7s period, SSW swell with 295 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 6s period with S swell.
Best Forecast Surf Conditions for Greenhill this week:
The surf forecast for Greenhill over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 4s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Greenhill in the next 16 days are 1.8m 7s and forecast to arrive on Tuesday (Aug 25) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Aug 21) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 18th Aug) | 3ft (0.9m) 6s |
| Best Surf | 2AM (Tue 25th Aug) | 6ft (1.8m) 7s |
| Most Powerful | 2AM (Tue 25th Aug) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Greenhill over the next 16 days.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Sat night. Warm (max 24°C on Thu night, min 19°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 6 | SSE 7 | SSE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 13 | S 6 | SSE 6 | S 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 62 | 94 | 81 | 41 | 43 | 27 | 14 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 7 | 6 | 6 | 8 | 31 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | cross | on | on | glassy | glassy | on | cross-off | cross-off | cross | glassy | cross-off | cross | cross-off | on | cross-on | on |
High Tide | 00:10AM1.06m | 12:42PM1.20m | 00:55AM0.98m | 1:32PM1.14m | 1:44AM0.91m | 2:28PM1.09m | 2:42AM0.86m | 3:29PM1.06m | 3:47AM0.85m | 4:31PM1.06m | 4:50AM0.87m | 5:27PM1.09m | |||||||
Low Tide | 6:15AM0.20m | 7:03PM0.30m | 6:59AM0.26m | 7:57PM0.37m | 7:48AM0.32m | 8:57PM0.42m | 8:45AM0.36m | 10:02PM0.43m | 9:48AM0.37m | 11:03PM0.42m | 10:49AM0.35m | 11:55PM0.37m | |||||||
 |  | |  |  | | |  | |  |  | | | | |  | |  | | |
 | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | 7:43 | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | 12 | 5 | 4 | 3 |
Temp °C | 21 | 24 | 25 | 23 | 26 | 27 | 25 | 25 | 26 | 24 | 21 | 23 | 21 | 21 | 22 | 20 | 23 | 23 | 21 |
Feels °C | 23 | 26 | 27 | 25 | 27 | 27 | 25 | 28 | 26 | 25 | 23 | 25 | 23 | 20 | 21 | 20 | 26 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | S 6 | SSE 7 | SSE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 13 | S 6 | SSE 6 | S 7 |
| kJ | 62 | 94 | 81 | 41 | 43 | 27 | 14 | 13 | 12 | 6 | 11 | 10 | 10 | 10 | 6 | 6 | 2 | 8 | 31 |
Swell 2 Height (m) Direction Period (s) | E 4 | S 13 | S 12 | S 7 | SSW 6 | SSE 10 | SSE 6 | S 6 | S 5 | SE 8 | S 5 | SE 14 | SE 14 | SE 13 | SE 13 | SE 9 | SE 12 | SSW 6 | ESE 8 |
| kJ | 2 | 3 | 3 | 23 | 13 | 9 | 7 | 6 | 5 | 11 | 2 | 8 | 7 | 7 | 7 | 3 | 6 | 6 | 13 |
Swell 3 Height (m) Direction Period (s) | S 14 | — | SE 12 | SSE 11 | SSE 10 | SE 9 | SSW 6 | SE 9 | SE 9 | SSW 5 | — | — | — | S 7 | SE 9 | S 5 | SSE 6 | SE 12 | SSE 12 |
| kJ | 4 | — | 6 | 12 | 10 | 14 | 3 | 3 | 3 | 2 | — | — | — | 1 | 3 | 2 | 4 | 6 | 14 |
Wind waves Height (m) Direction Period (s) | NNE 2 | — | — | — | — | SSW 6 | SW 3 | — | — | — | ENE 3 | E 4 | E 5 | E 4 | E 5 | ESE 6 | E 4 | ESE 5 | — |
| kJ | 1 | — | — | — | — | 15 | 2 | — | — | — | 3 | 24 | 20 | 24 | 34 | 42 | 20 | 9 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 11 | 38 | 150 | 43 | 43 | 2513 | 176 | 268 | 660 | 150 | 364 | 430 | 258 | 115 | 112 | 39 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Greenhill surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Greenhill Surf forecast
The above surf forecast table for Greenhill provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Greenhill can be found by selecting the local surf guide option on the grey menu. Our Greenhill surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Greenhill) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Greenhill may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Greenhill is 15 km (9 miles) from Narragansett Pier. If you plan a vacation in Rhode Island, look for hotels and other accommodation in Narragansett Pier. Narragansett Pier has rooms for a wide range of budgets as well as car hire and transport links.
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