Surf Forecasts:
How big are the waves at Jacobs Bay today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 8ft (2.4m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 6ft (1.8m), 12s period with WSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 10ft (3.0m), 13s period with SW swell.
The current surf forecast for Jacobs Bay at 8PM is: 3.0m 13s primary swell from a Southwest direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 8ft (2.4m) | 13s |
| Afternoon (18 Aug) | 6ft (1.8m) | 12s |
| Evening (18 Aug) | 10ft (3.0m) | 13s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 12°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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) | WSW 12 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1869 | 948 | 1952 | 2744 | 2834 | 2665 | 2495 | 2221 | 2185 | 1966 | 1830 | 1632 | 1565 | 1591 | 2111 | 3629 | 3732 | 3397 | 2757 | 2183 | 2254 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off |
High Tide | 6:49PM1.30m | 7:14AM1.11m | 7:31PM1.16m | 8:10AM1.00m | 8:35PM1.05m | ||||||||||||||||
Low Tide | 12:31PM0.39m | 1:09AM0.43m | 1:08PM0.52m | 1:56AM0.54m | 2:00PM0.63m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — |
 | — | — | 6:21 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 14 | 13 | 12 | 13 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
Feels °C | 10 | 10 | 9 | 8 | 8 | 8 | 10 | 7 | 8 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 |
| kJ | 1869 | 948 | 1952 | 2744 | 2834 | 2665 | 2495 | 2221 | 2185 | 1966 | 1830 | 1632 | 1565 | 1591 | 2111 | 3629 | 3732 | 3397 | 2757 | 2183 | 2254 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | WSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 416 | 778 | 447 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 251 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 4 | S 5 | — |
| kJ | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 41 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 28 | 28 | 150 | 161 | 29 | 29 | 29 | 29 | 106 | 131 | 112 | 28 | 28 | 28 | 28 | 29 | 29 | 106 | 135 | 115 | 29 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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