Surf Forecasts:
How big are the waves at Jap Rock today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 0.5ft (0.2m), 8s period with E swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 0.5ft (0.2m), 8s period with E swell.
- Evening surf: Evening surf (21 Aug, local time) - 2ft (0.6m), 4s period with SSE swell.
The current surf forecast for Jap Rock at 2AM is: 0.2m 8s primary swell from a East direction and 0.1m 8s secondary swell from a Northeast direction, 0.3m 3s secondary swell from a South-southeast direction (forecast issued at 07:00pm August 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 0.5ft (0.2m) | 8s |
| Afternoon (21 Aug) | 0.5ft (0.2m) | 8s |
| Evening (21 Aug) | 2ft (0.6m) | 4s |
Table - waves today at Jap Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 36mm), heaviest during Thu night. Warm (max 31°C on Fri afternoon, min 26°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
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) | SE 4 | SSE 4 | S 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 4 | SSE 4 | E 8 | E 8 | E 9 | E 9 | E 13 | SE 4 | SE 4 | SE 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 12 | 12 | 7 | 5 | 5 | 6 | 5 | 5 | 5 | 8 | 7 | 5 | 6 | 6 | 6 | 3 | 3 | 3 | 4 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | glassy | on | cross-on | on | cross-off | glassy |
High Tide | 2:56PM0.75m | 3:01AM0.73m | 3:56PM0.73m | 4:00AM0.72m | 4:58PM0.74m | ||||||||||||||
Low Tide | 9:22PM0.30m | 9:50AM0.19m | 10:21PM0.32m | 10:47AM0.20m | |||||||||||||||
 |  |  |  | | |  | | | | |  | | | | | |  | | |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | 7:52 | — | — | — | — | — | — | — | 7:51 | — | — | — | — | — | — | — | 7:50 | — | — |
mm | 2 | 14 | 1 | — | 1 | 2 | — | — | — | 2 | 2 | — | 1 | — | — | — | — | 6 | — |
Temp °C | 30 | 27 | 29 | 29 | 29 | 29 | 30 | 31 | 30 | 30 | 29 | 29 | 28 | 28 | 29 | 30 | 30 | 26 | 27 |
Feels °C | 32 | 30 | 32 | 31 | 32 | 32 | 33 | 32 | 31 | 33 | 32 | 31 | 31 | 32 | 32 | 31 | 31 | 26 | 29 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | S 4 | E 8 | E 8 | E 8 | SSE 3 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | S 3 | S 4 | NE 9 | NE 9 | NE 9 | NE 8 |
| kJ | 5 | 5 | 7 | 5 | 5 | 5 | 4 | 5 | 5 | 5 | 1 | 5 | 6 | 2 | 1 | 3 | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 8 | E 8 | NE 8 | NE 8 | NE 8 | E 8 | NE 8 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | ESE 3 | ESE 3 | E 8 | E 8 | E 8 | E 8 |
| kJ | 3 | 3 | 5 | 3 | 3 | 3 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 8 | E 5 | E 5 | — | NE 8 | NE 9 | — | NE 7 | NE 7 | NE 7 | NE 7 | E 9 | E 9 | E 13 | E 13 | E 13 | E 13 |
| kJ | 1 | 1 | 3 | 1 | 1 | — | 3 | 3 | — | 2 | 2 | 2 | 2 | 6 | 6 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SE 4 | SSE 4 | S 4 | SSE 3 | S 3 | S 3 | SW 3 | SSE 3 | SE 3 | SSE 4 | SSE 4 | SSE 3 | SSE 3 | — | — | SE 4 | SE 4 | SE 4 | SE 4 |
| kJ | 12 | 12 | 7 | 2 | 5 | 6 | 2 | 2 | 5 | 8 | 7 | 4 | 2 | — | — | 2 | 3 | 3 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 417 | 1623 | 1219 | 797 | 974 | 974 | 359 | 1684 | 1799 | 797 | 386 | 462 | 775 | 922 | 925 | 359 | 263 | 386 | 297 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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