Surf Forecasts:
How big are the waves at Jacobs Bay today (12 Sep):
- Afternoon surf: Afternoon surf (12 Sep, local time) - 7ft (2.1m), 14s period with SW swell.
- Evening surf: Evening surf (12 Sep, local time) - 7ft (2.1m), 16s period with SW swell.
The current surf forecast for Jacobs Bay at 11PM is: 2.5m 16s primary swell from a Southwest direction and 1.7m 9s secondary swell from a South direction, 2.1m 9s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 12). The wind direction is predicted to be cross-offshore and the swell rating is 5.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | - | - |
| Afternoon (12 Sep) | 7ft (2.1m) | 14s |
| Evening (12 Sep) | 7ft (2.1m) | 16s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 20°C on Sat night, min 14°C on Sun night). Winds increasing (light winds from the NNW on Sun afternoon, fresh winds from the N by Mon morning). | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | |||||||||||||||||
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 14 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 1459 | 1968 | 2963 | 2516 | 2278 | 2111 | 1804 | 1760 | 1451 | 1102 | 919 | 814 | 653 | 572 | 488 | 416 | 355 | 349 | 303 |
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-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 3:58PM1.70m | 4:17AM1.54m | 4:29PM1.64m | 4:49AM1.47m | 5:00PM1.54m | ||||||||||||||
Low Tide | 10:14PM0.01m | 10:19AM0.08m | 10:45PM0.07m | 10:50AM0.17m | |||||||||||||||
 |  |  | | | | |  | | |  | | |  | | | | | | |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | — | — | — | — | — | — | — | 1 | — | — | 1 | — | 1 | — | — | — | — | — | — |
Temp °C | 21 | 20 | 18 | 20 | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 14 | 15 | 14 | 15 | 15 | 14 | 14 | 14 |
Feels °C | 17 | 18 | 16 | 19 | 14 | 15 | 14 | 17 | 15 | 13 | 12 | 11 | 11 | 10 | 9 | 10 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 1459 | 1968 | 2963 | 2516 | 2278 | 2111 | 1804 | 1760 | 1451 | 1102 | 919 | 814 | 653 | 572 | 488 | 416 | 355 | 349 | 303 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 13 | S 9 | S 9 | S 9 | S 8 | S 8 | N 4 | SSE 8 | S 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | S 12 | — | S 6 | SE 7 |
| kJ | 1282 | 721 | 445 | 413 | 318 | 145 | 111 | 7 | 96 | 51 | 37 | 37 | 25 | 15 | 15 | 3 | — | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 4 | NNW 4 | SSE 11 | SSE 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 7 | 5 | 12 | 12 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 8 | SSE 9 | — | — | — | N 4 | — | — | NNW 4 | N 4 | NNW 4 | NNW 4 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NW 7 | NW 7 |
| kJ | 641 | 465 | 631 | — | — | — | 7 | — | — | 5 | 14 | 17 | 16 | 25 | 50 | 107 | 176 | 237 | 273 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 84 | 0 | 0 | 0 | 47 | 47 | 86 | 17 | 115 | 118 | 69 | 86 | 97 | 138 | 142 | 413 | 285 | 138 | 184 |
Best forecast wave conditions in West Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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