Surf Forecasts:
How big are the waves at Jap Rock today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 1.5ft (0.4m), 7s period with NE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 1.5ft (0.4m), 7s period with NE swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.4m), 7s period with NE swell.
The current surf forecast for Jap Rock at 10PM is: 0.4m 7s primary swell from a Northeast direction and 0.2m 8s secondary swell from a East-southeast direction (forecast issued at 01:00pm September 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 1.5ft (0.4m) | 7s |
| Afternoon (20 Sep) | 1.5ft (0.4m) | 7s |
| Evening (20 Sep) | 1.5ft (0.4m) | 7s |
Table - waves today at Jap Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 28mm), heaviest during Mon night. Warm (max 30°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||
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) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NNE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 19 | 19 | 18 | 17 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 19 | 17 | 30 | 28 | 27 | 26 | 18 | 18 | 18 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | on | on | cross-on | cross | cross-off | glassy | on | on | cross-on | on | cross-on | cross | glassy | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 4:15PM0.81m | 4:25AM0.79m | 5:14PM0.84m | 5:25AM0.83m | 6:05PM0.88m | ||||||||||||||||
Low Tide | 10:09AM0.31m | 10:44PM0.41m | 11:04AM0.30m | 11:37PM0.37m | 11:54AM0.26m | ||||||||||||||||
 |  |  |  |  | |  | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — |
 | — | — | 7:19 | — | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | — | 7:16 | — | — |
mm | — | — | 1 | 1 | — | — | — | — | 1 | — | 6 | 7 | 5 | — | — | — | — | — | 2 | 1 | 1 |
Temp °C | 28 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 29 | 30 | 28 | 26 | 26 | 28 | 28 | 27 | 29 | 29 | 29 | 28 | 28 |
Feels °C | 32 | 32 | 31 | 31 | 30 | 30 | 31 | 30 | 33 | 32 | 31 | 29 | 28 | 30 | 30 | 30 | 32 | 30 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NNE 7 | NE 9 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
| kJ | 19 | 19 | 19 | 18 | 17 | 7 | 7 | 7 | 7 | 7 | 7 | 4 | 19 | 17 | 30 | 28 | 27 | 26 | 18 | 18 | 18 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | ESE 8 | ESE 8 | E 8 | NNE 9 | S 3 | NNE 6 | E 7 | S 3 | S 3 | E 7 | E 7 | S 4 | S 4 |
| kJ | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 5 | 8 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 10 | NE 10 | E 8 | NE 6 | E 7 | — | E 7 | E 7 | — | E 7 | E 8 | E 8 |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 4 | 1 | 1 | 1 | — | 1 | 1 | — | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 3 | S 3 | — | SSE 3 | SSE 3 | S 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 2 | 6 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 366 | 359 | 307 | 307 | 376 | 376 | 455 | 308 | 308 | 308 | 307 | 376 | 359 | 170 | 170 | 307 | 307 | 775 | 797 | 974 | 922 |
Best forecast wave conditions in South Florida | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jap Rock 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.
Nearest