Surf Forecasts:
How big are the waves at J-Bay today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 8ft (2.4m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 7.5ft (2.3m), 13s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 7ft (2.1m), 13s period with SW swell.
The current surf forecast for J-Bay at 4AM is: 1.9m 15s primary swell from a Southwest direction and 1.2m 8s secondary swell from a East direction (forecast issued at 01:00am September 20). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 8ft (2.4m) | 14s |
| Afternoon (20 Sep) | 7.5ft (2.3m) | 13s |
| Evening (20 Sep) | 7ft (2.1m) | 13s |
Table - waves today at J-Bay. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 28°C on Tue afternoon, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 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 15 | SW 15 | SW 14 | SW 14 | 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 12 | SW 12 | SW 11 | SW 12 | SW 13 | SW 13 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 881 | 1914 | 2317 | 2238 | 1890 | 1749 | 1498 | 1286 | 1185 | 1003 | 956 | 785 | 772 | 635 | 514 | 455 | 448 | 337 | 278 | 220 | 286 | 424 | 588 | 373 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off |
High Tide | 12:15PM0.96m | 00:28AM1.02m | 1:12PM1.11m | 1:16AM1.16m | 1:43PM1.27m | |||||||||||||||||||
Low Tide | 4:51AM0.75m | 6:22PM0.77m | 6:53AM0.63m | 7:18PM0.62m | 7:28AM0.48m | 7:49PM0.47m | ||||||||||||||||||
 | |  | | | | | | | |  | |  | |  | | | | | | | | |  | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 17 | 17 | 17 | 19 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 17 | 17 | 16 | 16 | 17 | 24 | 28 | 26 | 25 | 22 |
Feels °C | 16 | 16 | 17 | 18 | 17 | 17 | 16 | 17 | 17 | 17 | 18 | 17 | 15 | 17 | 15 | 15 | 14 | 15 | 17 | 24 | 29 | 25 | 26 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SW 14 | 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 12 | SW 12 | SW 11 | SW 12 | SW 13 | SW 13 | E 8 | E 8 |
| kJ | 881 | 1914 | 2317 | 2238 | 1890 | 1749 | 1498 | 1286 | 1185 | 1003 | 956 | 785 | 772 | 635 | 514 | 455 | 448 | 337 | 278 | 220 | 286 | 424 | 420 | 373 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 10 | WSW 11 | SW 13 | SW 12 |
| kJ | 196 | 163 | 163 | 135 | 135 | 109 | 107 | 107 | 84 | 84 | 84 | 65 | 51 | 94 | 126 | 191 | 188 | 211 | 206 | 191 | 102 | 40 | 357 | 319 |
Swell 3 Height (m) Direction Period (s) | SW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 11 | WSW 11 | S 15 | WSW 11 | S 14 |
| kJ | 344 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 66 | 46 | 17 | 40 | 60 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 8 | SE 4 | ESE 8 | E 8 | E 8 | E 5 | E 5 | E 5 | E 6 | E 7 | E 7 | E 7 | E 8 | N 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | 133 | 8 | 112 | 137 | 133 | 60 | 80 | 129 | 170 | 205 | 269 | 388 | 588 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 0 | 0 | 2 | 0 | 31 | 354 | 427 | 197 | 140 | 140 | 140 | 140 | 180 | 4 | 140 |
Best forecast wave conditions in Eastern Cape (South) | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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