Surf Forecasts:
How big are the waves at J-Bay today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 11ft (3.5m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 13ft (4.0m), 14s period with SW swell.
- Evening surf: Evening surf (20 Aug, local time) - 11ft (3.5m), 13s period with SW swell.
The current surf forecast for J-Bay at 8AM is: 3.5m 14s primary swell from a Southwest direction and 0.4m 9s secondary swell from a East direction (forecast issued at 01:00am August 20). The wind direction is predicted to be offshore and the swell rating is 5.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 11ft (3.5m) | 14s |
| Afternoon (20 Aug) | 13ft (4.0m) | 14s |
| Evening (20 Aug) | 11ft (3.5m) | 13s |
Table - waves today at J-Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Thu morning). Winds increasing (calm on Thu night, strong winds from the WSW by Sat morning). | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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) | SW 12 | SW 12 | SW 14 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 11 | SSW 12 | SW 11 | SW 11 | SW 11 | SSW 12 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1470 | 1500 | 4378 | 6035 | 6042 | 4873 | 3937 | 3344 | 2815 | 2233 | 1978 | 1742 | 1524 | 1324 | 1102 | 644 | 662 | 847 | 771 | 1279 | 1949 | 822 | 646 | 561 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross | cross | cross-off | off | off | glassy | glassy | cross-on | on | on | cross-on | cross-on | cross | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:46AM1.06m | 8:17PM1.09m | 9:08AM0.94m | 10:35PM1.00m | 12:36PM0.96m | |||||||||||||||||||
Low Tide | 1:49AM0.58m | 1:47PM0.62m | 2:53AM0.70m | 3:08PM0.75m | 5:54AM0.72m | 6:33PM0.74m | ||||||||||||||||||
 | |  |  | | | | | | | | | | | | | | | |  | | | |  | |
 | — | 6:54 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 16 | 17 | 15 | 14 | 14 | 13 | 13 | 13 | 15 | 16 | 16 | 14 | 14 | 14 | 14 | 15 | 17 | 17 | 16 | 15 | 15 |
Feels °C | 10 | 10 | 10 | 14 | 14 | 12 | 13 | 13 | 11 | 12 | 12 | 13 | 12 | 12 | 11 | 13 | 14 | 12 | 11 | 10 | 10 | 10 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 14 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 11 | SSW 12 | SW 11 | SSW 14 | E 5 | SSW 12 | SW 12 | SW 12 |
| kJ | 1470 | 1500 | 4378 | 6035 | 6042 | 4873 | 3937 | 3344 | 2815 | 2233 | 1978 | 1742 | 1524 | 1324 | 1102 | 644 | 662 | 847 | 771 | 433 | 2 | 822 | 646 | 561 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SSW 15 | E 5 | E 8 | E 7 | WSW 11 | WSW 11 |
| kJ | 26 | 25 | 25 | 24 | 13 | 13 | 13 | 13 | 12 | 6 | 6 | 6 | 6 | 5 | 500 | 403 | 329 | 323 | 305 | 4 | 5 | 4 | 24 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 8 | E 4 | ESE 4 | E 8 | — | — | E 7 | E 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 9 | 6 | 5 | — | — | 4 | 5 |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | E 3 | E 3 | ENE 4 | E 4 | — | WSW 12 | SW 11 | SW 11 | WSW 7 | SW 7 | SW 8 |
| kJ | 271 | 279 | — | — | — | — | — | — | — | — | — | — | — | 4 | 11 | 19 | 12 | — | 189 | 1279 | 1949 | 437 | 375 | 346 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 19 | 513 | 197 | 140 | 31 | 31 | 0 | 140 | 179 | 142 | 140 | 3 | 3 |
Best forecast wave conditions in Eastern Cape (South) | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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