Surf Forecasts:
How big are the waves at Jacobs Bay today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 10ft (3.0m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 10ft (3.0m), 13s period with SW swell.
- Evening surf: Evening surf (20 Aug, local time) - 8ft (2.5m), 12s period with SW swell.
The current surf forecast for Jacobs Bay at 11AM is: 3.0m 13s primary swell from a Southwest direction (forecast issued at 07:00am August 20). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 10ft (3.0m) | 13s |
| Afternoon (20 Aug) | 10ft (3.0m) | 13s |
| Evening (20 Aug) | 8ft (2.5m) | 12s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sat night, min 12°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||||||||
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 12 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 13 | SSW 13 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1978 | 3391 | 3597 | 3105 | 3057 | 2148 | 2124 | 1880 | 1249 | 1600 | 1327 | 756 | 743 | 932 | 1009 | 451 | 404 | 353 | 352 | 469 | 469 | 627 | 954 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross | cross | glassy | glassy | cross-on | cross-on | cross | cross-off |
High Tide | 8:10AM1.00m | 8:35PM1.05m | 9:51AM0.94m | 10:26PM1.00m | 11:52AM0.98m | ||||||||||||||||||
Low Tide | 2:00PM0.63m | 3:21AM0.63m | 3:58PM0.71m | 5:33AM0.61m | 6:09PM0.66m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | |  | | | | | | | |
 | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:23 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 16 | 15 |
Feels °C | 10 | 9 | 10 | 9 | 9 | 8 | 9 | 8 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 10 | 11 | 14 | 15 | 13 | 12 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | WSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 13 | SSW 13 | SW 11 | SW 11 |
| kJ | 1978 | 3391 | 3597 | 3105 | 3057 | 2148 | 2124 | 1880 | 1249 | 1600 | 1327 | 756 | 743 | 932 | 366 | 451 | 404 | 353 | 352 | 469 | 469 | 627 | 954 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 6 | — | — | — | — | WSW 11 | WSW 11 | WSW 10 | WSW 11 | WSW 10 | WSW 10 | SW 16 | WSW 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | 84 | — | — | — | — | 323 | 291 | 265 | 214 | 163 | 135 | 66 | 193 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | SSW 14 | SSW 14 | — | W 18 | WSW 17 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 68 | 75 | 121 | — | 6 | 28 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | S 4 | — | S 5 | S 5 | — | S 6 | S 6 | S 6 | S 7 | S 6 | S 6 | SW 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 10 | — | 41 | 56 | — | 120 | 144 | 132 | 131 | 84 | 71 | 1009 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 28 | 29 | 29 | 106 | 135 | 131 | 28 | 28 | 28 | 28 | 0 | 31 | 31 | 29 | 29 | 29 | 18 | 0 | 0 | 29 | 31 | 28 | 0 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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