Surf Forecasts:
How big are the waves at Greenhill today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 1.5ft (0.5m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 3.5ft (1.1m), 4s period with SSW swell.
- Evening surf: Evening surf (18 Jul, local time) - 5ft (1.6m), 5s period with SSW swell.
The current surf forecast for Greenhill at 8PM is: 1.6m 5s primary swell from a South-southwest direction and 0.1m 13s secondary swell from a Southeast direction (forecast issued at 01:00pm July 18). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 1.5ft (0.5m) | 4s |
| Afternoon (18 Jul) | 3.5ft (1.1m) | 4s |
| Evening (18 Jul) | 5ft (1.6m) | 5s |
Table - waves today at Greenhill. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 26mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the SSW on Sat afternoon, light winds from the SSW by Mon morning). | |||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | |||||||||||||||||||
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 |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 34 | 62 | 138 | 251 | 184 | 214 | 143 | 128 | 136 | 112 | 112 | 89 | 91 | 75 | 81 | 80 | 80 | 76 | 76 | 74 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | on | on | on | cross-on | on |
High Tide | 11:46AM1.25m | 00:05AM1.21m | 12:37PM1.23m | 00:53AM1.11m | 1:29PM1.20m | ||||||||||||||||
Low Tide | 5:56PM0.14m | 6:18AM0.12m | 6:51PM0.21m | 7:04AM0.18m | 7:46PM0.28m | ||||||||||||||||
 |  |  | |  |  |  |  | | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:15 | — |
mm | — | — | 2 | 3 | 19 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 21 | 21 | 22 | 22 | 22 | 21 | 24 | 26 | 27 | 25 | 22 | 19 | 18 | 19 | 23 | 24 | 23 | 22 | 21 |
Feels °C | 23 | 21 | 19 | 20 | 21 | 21 | 22 | 19 | 21 | 23 | 23 | 23 | 19 | 16 | 15 | 17 | 21 | 21 | 19 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 13 | SE 13 | SE 13 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 3 | 3 | 3 | 7 | 7 | 7 | 127 | 143 | 128 | 136 | 112 | 112 | 89 | 91 | 75 | 81 | 80 | 80 | 76 | 76 | 74 |
Swell 2 Height (m) Direction Period (s) | SE 14 | SE 13 | SE 13 | — | — | S 9 | SE 13 | SE 13 | SE 13 | — | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 |
| kJ | 7 | 7 | 7 | — | — | 1 | 7 | 7 | 7 | — | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 13 | — | — | — | — | — | — | SE 12 | — | SE 12 | SE 12 | SE 8 |
| kJ | — | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | 6 | — | 6 | 6 | 3 |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SW 7 | WNW 3 | NW 3 | NW 4 | — | NW 3 | — | — | NNE 2 | — | — | — | — | SSW 2 | — |
| kJ | 10 | 34 | 62 | 138 | 251 | 184 | 214 | 4 | 3 | 4 | — | 2 | — | — | 1 | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1071 | 3450 | 3450 | 293 | 282 | 238 | 11 | 11 | 7 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 6 | 12 | 11 | 12 | 12 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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