Surf Forecasts:
How big are the waves at Jacobs Bay today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
- Evening surf: Evening surf (17 Sep, local time) - 10ft (3.0m), 8s period with S swell.
The current surf forecast for Jacobs Bay at 9PM is: 3.0m 8s primary swell from a South direction and 1.6m 12s secondary swell from a Southwest direction (forecast issued at 01:00pm September 17). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 6ft (1.9m) | 12s |
| Afternoon (17 Sep) | 6ft (1.9m) | 12s |
| Evening (17 Sep) | 10ft (3.0m) | 8s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 11°C on Thu night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the ESE by Sun morning). | |||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||||
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 | S 8 | S 8 | S 8 | S 8 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 944 | 961 | 1087 | 1141 | 816 | 692 | 600 | 600 | 600 | 611 | 865 | 878 | 796 | 784 | 736 | 712 | 455 | 407 | 361 | 1048 | 1244 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off |
High Tide | 6:38PM1.14m | 7:13AM1.02m | 7:34PM1.01m | 8:52AM0.93m | 9:41PM0.95m | ||||||||||||||||
Low Tide | 12:21PM0.51m | 00:54AM0.54m | 1:06PM0.64m | 2:04AM0.64m | 3:02PM0.73m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 17 | 15 | 13 | 12 | 11 | 12 | 14 | 18 | 21 | 20 | 17 | 15 | 15 | 15 | 19 | 20 | 21 | 23 | 22 |
Feels °C | 7 | 8 | 8 | 8 | 6 | 5 | 5 | 6 | 8 | 10 | 15 | 15 | 13 | 11 | 11 | 12 | 15 | 16 | 17 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 |
| kJ | 944 | 961 | 822 | 660 | 710 | 622 | 600 | 600 | 600 | 611 | 865 | 878 | 796 | 784 | 736 | 712 | 455 | 407 | 361 | 1048 | 1244 |
Swell 2 Height (m) Direction Period (s) | W 12 | — | — | — | — | — | — | — | — | W 20 | — | SW 18 | WSW 18 | — | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | S 8 | — |
| kJ | 106 | — | — | — | — | — | — | — | — | 7 | — | 49 | 31 | — | 163 | 65 | 255 | 346 | 350 | 49 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | SW 16 | SW 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 127 | 125 | 248 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 919 | 853 | 1087 | 1141 | 816 | 692 | 476 | 316 | 365 | 476 | 579 | 552 | 450 | 309 | 190 | 177 | 169 | 165 | 182 | 266 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 84 | 134 | 3904 | 84 | 84 | 84 | 84 | 84 | 84 | 31 | 28 | 28 | 28 | 28 | 28 | 0 | 28 | 29 | 98 | 28 | 28 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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