Surf Forecasts:
How big are the waves at J-Bay today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 5ft (1.6m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 6ft (1.9m), 9s period with E swell.
- Evening surf: Evening surf (31 Jul, local time) - 7.5ft (2.3m), 7s period with E swell.
The current surf forecast for J-Bay at 5AM is: 1.6m 13s primary swell from a Southwest direction and 1.5m 9s secondary swell from a East direction (forecast issued at 01:00am July 31). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 5ft (1.6m) | 13s |
| Afternoon (31 Jul) | 6ft (1.9m) | 9s |
| Evening (31 Jul) | 7.5ft (2.3m) | 7s |
Table - waves today at J-Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the E on Fri afternoon, calm by Sun night). | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SW 13 | E 9 | SW 12 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 12 | ESE 12 | ESE 11 | E 11 | ESE 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 905 | 933 | 834 | 732 | 591 | 755 | 439 | 495 | 635 | 746 | 786 | 747 | 728 | 770 | 728 | 808 | 728 | 652 | 603 | 1269 | 1272 | 1187 | 1242 | 908 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | 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-on | cross-on | cross | cross-on | on | cross-on | glassy | cross-off |
High Tide | 4:35AM1.57m | 4:59PM1.64m | 5:04AM1.57m | 5:27PM1.66m | 5:33AM1.54m | 5:57PM1.64m | ||||||||||||||||||
Low Tide | 10:44AM0.07m | 11:04PM0.18m | 11:12AM0.07m | 11:34PM0.18m | 11:40AM0.09m | |||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:38 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 14 | 17 | 18 | 16 | 15 | 13 | 12 | 11 | 11 | 15 | 20 | 18 | 15 | 13 | 13 | 13 | 14 | 18 | 22 | 22 | 20 | 20 |
Feels °C | 13 | 11 | 11 | 11 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 11 | 15 | 13 | 11 | 9 | 10 | 10 | 11 | 16 | 20 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | 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 11 | SW 11 | SW 11 | SW 14 | SW 13 | SW 13 | E 8 | E 12 | SW 13 | SW 13 | ESE 11 | ESE 11 |
| kJ | 905 | 933 | 834 | 732 | 591 | 504 | 430 | 374 | 324 | 244 | 200 | 161 | 153 | 125 | 125 | 241 | 215 | 202 | 603 | 1269 | 335 | 386 | 1016 | 908 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | — | — | — | — | — | SW 18 | SW 18 | — | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | S 10 | S 10 | S 10 | SW 13 | SW 13 | S 9 | S 9 | SW 13 | SW 13 |
| kJ | 405 | 405 | — | — | — | — | — | 12 | 12 | — | 41 | 40 | 84 | 76 | 75 | 19 | 18 | 17 | 245 | 286 | 16 | 15 | 431 | 363 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 17 | S 13 | S 13 | S 10 | S 10 | S 12 | — | S 9 | SSW 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 3 | 3 | 17 | 16 | 12 | — | 7 | 142 |
Wind waves Height (m) Direction Period (s) | — | — | E 9 | E 9 | E 9 | E 9 | E 6 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | ESE 12 | ESE 11 | E 11 | — |
| kJ | — | — | 450 | 497 | 556 | 755 | 439 | 495 | 635 | 746 | 786 | 747 | 728 | 770 | 728 | 808 | 728 | 652 | — | — | 1272 | 1187 | 1242 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 19 | 31 | 141 | 183 | 197 | 140 | 140 | 140 | 140 | 141 | 172 | 180 | 140 | 141 | 140 | 140 | 140 | 31 | 31 | 31 | 31 | 0 | 0 |
Best forecast wave conditions in Eastern Cape (South) | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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