Surf Forecasts:
How big are the waves at Jacobs Bay today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 10ft (3.0m), 8s period with S swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 10ft (3.0m), 8s period with S 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 1AM is: 1.8m 13s primary swell from a Southwest direction and 1.0m 13s secondary swell from a West direction, 3.0m 8s secondary swell from a South direction (forecast issued at 07:00pm September 16). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 10ft (3.0m) | 8s |
| Afternoon (17 Sep) | 10ft (3.0m) | 8s |
| 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 21°C on Sat afternoon, min 12°C on Wed night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the SSE by Sat morning). | |||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | |||||||||||||||||
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) | WSW 13 | S 8 | S 8 | SW 13 | S 8 | SW 12 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 1359 | 898 | 985 | 1191 | 1112 | 1031 | 1158 | 1039 | 1060 | 1247 | 850 | 762 | 611 | 600 | 600 | 663 | 796 | 809 | 796 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | 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-off |
High Tide | 6:01PM1.28m | 6:25AM1.14m | 6:38PM1.14m | 7:13AM1.02m | 7:34PM1.01m | ||||||||||||||
Low Tide | 00:16AM0.41m | 12:21PM0.51m | 00:54AM0.54m | 1:06PM0.64m | |||||||||||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 13 | 12 | 13 | 15 | 18 | 16 | 15 | 14 | 13 | 12 | 12 | 14 | 18 | 20 | 20 | 17 |
Feels °C | 4 | 5 | 5 | 6 | 4 | 5 | 7 | 9 | 6 | 7 | 6 | 7 | 6 | 6 | 7 | 11 | 13 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | WSW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 |
| kJ | 1359 | 683 | 969 | 1191 | 1086 | 1031 | 997 | 961 | 865 | 615 | 604 | 622 | 611 | 600 | 600 | 663 | 796 | 809 | 796 |
Swell 2 Height (m) Direction Period (s) | SW 13 | WSW 13 | W 13 | W 13 | W 12 | W 12 | W 12 | — | — | — | — | — | — | — | — | W 20 | — | SW 18 | WSW 18 |
| kJ | 511 | 669 | 483 | 329 | 304 | 148 | 106 | — | — | — | — | — | — | — | — | 7 | — | 49 | 31 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 7 | 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 8 | S 8 | S 8 |
| kJ | 554 | 898 | 985 | 1064 | 1112 | 997 | 1158 | 1039 | 1060 | 1247 | 850 | 762 | 579 | 365 | 316 | 365 | 596 | 727 | 562 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 84 | 82 | 82 | 84 | 84 | 84 | 84 | 921 | 980 | 84 | 84 | 84 | 84 | 69 | 28 | 28 | 3905 | 84 | 84 |
Best forecast wave conditions in West Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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