Surf Forecasts:
How big are the waves at J-Bay today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 7ft (2.2m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 8ft (2.5m), 13s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 10ft (3.0m), 13s period with SW swell.
The current surf forecast for J-Bay at 6PM is: 3.0m 13s primary swell from a Southwest direction and 0.6m 10s secondary swell from a East direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 7ft (2.2m) | 13s |
| Afternoon (18 Aug) | 8ft (2.5m) | 13s |
| Evening (18 Aug) | 10ft (3.0m) | 13s |
Table - waves today at J-Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 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) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1710 | 2221 | 2483 | 2660 | 3214 | 3165 | 3020 | 2752 | 2536 | 2457 | 2373 | 2454 | 1591 | 1292 | 2574 | 4531 | 5868 | 5468 | 4527 | 3759 | 3185 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross | cross | glassy | cross-off |
High Tide | 6:59PM1.39m | 7:09AM1.19m | 7:31PM1.24m | 7:46AM1.06m | 8:17PM1.09m | ||||||||||||||||
Low Tide | 12:39PM0.33m | 1:12AM0.45m | 1:09PM0.48m | 1:49AM0.58m | 1:47PM0.62m | ||||||||||||||||
 |  | |  | | | | | | | |  | | | | | | | | | | |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 17 | 18 | 15 | 14 | 14 | 13 | 13 | 13 | 16 | 17 | 15 | 14 | 14 |
Feels °C | 13 | 13 | 14 | 15 | 13 | 12 | 11 | 11 | 16 | 15 | 11 | 9 | 10 | 9 | 10 | 10 | 14 | 14 | 13 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | E 9 | E 9 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 1710 | 2221 | 2483 | 2660 | 3214 | 3165 | 3020 | 2752 | 2536 | 2457 | 27 | 27 | 1591 | 1292 | 2574 | 4531 | 5868 | 5468 | 4527 | 3759 | 3185 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | — | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 |
| kJ | 100 | 71 | 69 | 68 | 49 | 48 | 45 | 46 | 43 | 42 | 43 | — | 26 | 26 | 25 | 24 | 23 | 13 | 13 | 13 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 12 | SW 12 | SW 6 | SW 7 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 2373 | 2454 | 269 | 395 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 0 | 0 | 52 | 52 | 0 | 0 | 3 | 140 | 140 | 3 | 3 | 0 | 0 | 0 | 3 | 3 | 0 | 0 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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