Surf Forecasts:
How big are the waves at Jap Rock today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.6m), 7s period with NE swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 4.5ft (1.4m), 7s period with NE swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.3m), 8s period with NE swell.
The current surf forecast for Jap Rock at 6AM is: 1.7m 7s primary swell from a Northeast direction and 0.1m 13s secondary swell from a East direction, 0.1m 5s secondary swell from a South direction (forecast issued at 01:00am September 17). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5ft (1.6m) | 7s |
| Afternoon (17 Sep) | 4.5ft (1.4m) | 7s |
| Evening (17 Sep) | 4.5ft (1.3m) | 8s |
Table - waves today at Jap Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 26mm), heaviest during Thu morning. Warm (max 30°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 285 | 271 | 228 | 248 | 237 | 215 | 194 | 200 | 164 | 160 | 110 | 110 | 91 | 91 | 75 | 62 | 60 | 39 | 47 | 37 | 36 | 28 | 22 | 22 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | glassy | glassy | cross-on | cross-on | on | on | cross-on | cross-on | on |
High Tide | 00:40AM0.86m | 1:20PM0.86m | 1:27AM0.82m | 2:13PM0.82m | 2:20AM0.79m | 3:13PM0.80m | ||||||||||||||||||
Low Tide | 7:10AM0.24m | 7:39PM0.37m | 8:06AM0.29m | 8:38PM0.41m | 9:07AM0.31m | 9:43PM0.42m | ||||||||||||||||||
 | |  | | | | | |  | |  | | | | | | | | | | |  | | | |
 | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:21 | — | — | — | — | — | — | — | 7:20 | — | — |
mm | 4 | 4 | 5 | 2 | 1 | 1 | 1 | 1 | — | 1 | — | 1 | 3 | 2 | 4 | — | — | 1 | — | — | — | — | 2 | — |
Temp °C | 28 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 25 | 26 | 27 | 27 | 27 | 29 | 30 | 29 | 29 | 28 |
Feels °C | 29 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 30 | 31 | 31 | 31 | 30 | 30 | 28 | 29 | 31 | 31 | 30 | 32 | 32 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | — | E 13 | E 13 | E 13 | E 13 | E 9 | E 9 | E 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
| kJ | — | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 164 | 160 | 110 | 110 | 91 | 91 | 75 | 62 | 60 | 39 | 47 | 37 | 36 | 28 | 22 | 22 |
Swell 2 Height (m) Direction Period (s) | E 13 | S 5 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | — | — | — | E 8 | E 8 | E 8 | E 8 | E 12 | ESE 8 | E 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | NE 8 |
| kJ | 4 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | — | — | — | 1 | 1 | 1 | 1 | 3 | 6 | 1 | 5 | 1 | 1 | 1 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 13 | E 13 | E 9 | E 9 | E 8 | E 12 | — | E 12 | E 12 | — | — | — | — | E 12 | E 12 | E 10 | — | E 7 |
| kJ | — | — | — | — | — | — | 3 | 3 | 1 | 1 | 1 | 3 | — | 3 | 3 | — | — | — | — | 3 | 3 | 2 | — | 1 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | ESE 4 | ESE 4 | ESE 4 | ESE 4 | ESE 3 | ESE 8 | ESE 8 | ESE 8 | E 7 | — | ESE 3 | ESE 3 | ESE 4 | ESE 4 | E 3 | E 3 |
| kJ | 285 | 271 | 228 | 248 | 237 | 215 | 194 | 200 | 3 | 3 | 1 | 1 | 1 | 6 | 6 | 6 | 4 | — | 3 | 4 | 4 | 2 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 838 | 383 | 344 | 310 | 344 | 797 | 797 | 344 | 344 | 310 | 310 | 310 | 310 | 37 | 1 | 3 | 3 | 61 | 61 | 63 | 1620 | 1615 | 366 | 974 |
Best forecast wave conditions in South Florida | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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