Surf Forecasts:
How big are the waves at Jacobs Bay today (13 Sep):
- Morning surf: Morning surf (13 Sep, local time) - 7.5ft (2.3m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (13 Sep, local time) - 7ft (2.1m), 14s period with SW swell.
- Evening surf: Evening surf (13 Sep, local time) - 6ft (1.8m), 13s period with SW swell.
The current surf forecast for Jacobs Bay at 8PM is: 1.8m 13s primary swell from a Southwest direction and 0.7m 7s secondary swell from a South direction, 0.6m 4s secondary swell from a North direction (forecast issued at 01:00pm September 13). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 7.5ft (2.3m) | 14s |
| Afternoon (13 Sep) | 7ft (2.1m) | 14s |
| Evening (13 Sep) | 6ft (1.8m) | 13s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Very mild (max 16°C on Sun afternoon, min 13°C on Tue night). Mainly strong winds. | |||||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | |||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | NW 8 | NW 8 | NW 8 | SW 11 | SW 11 | SW 11 | SW 17 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2085 | 1864 | 1541 | 1102 | 1099 | 814 | 653 | 639 | 546 | 416 | 355 | 403 | 350 | 297 | 242 | 224 | 191 | 354 | 909 | 1384 | 2699 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 4:29PM1.64m | 4:49AM1.47m | 5:00PM1.54m | 5:19AM1.37m | 5:30PM1.41m | ||||||||||||||||
Low Tide | 10:19AM0.08m | 10:45PM0.07m | 10:50AM0.17m | 11:15PM0.17m | 11:19AM0.27m | ||||||||||||||||
 | |  |  |  | | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | 1 | 1 | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 18 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 14 |
Feels °C | 15 | 14 | 13 | 11 | 10 | 10 | 10 | 10 | 8 | 10 | 8 | 10 | 11 | 11 | 12 | 12 | 10 | 10 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 16 | SW 16 | SW 15 |
| kJ | 2085 | 1864 | 1541 | 1102 | 1099 | 814 | 653 | 639 | 546 | 416 | 355 | 309 | 263 | 259 | 237 | 224 | 191 | 171 | 909 | 1384 | 2699 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | — | — | SSE 7 | SE 7 | — | — | — | SW 16 | SW 18 | SW 17 | WSW 7 | WSW 7 | — |
| kJ | 133 | 121 | 93 | 54 | 51 | 24 | 15 | 15 | — | — | 4 | 2 | — | — | — | 41 | 150 | 354 | 91 | 140 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 7 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | N 4 | N 4 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 |
| kJ | — | — | — | 10 | 20 | 39 | 38 | 54 | 101 | 188 | 336 | 403 | 350 | 297 | 242 | 200 | 164 | 155 | 111 | 78 | 56 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 127 | 127 | 69 | 138 | 97 | 142 | 192 | 192 | 192 | 285 | 138 | 142 | 142 | 192 | 138 | 290 | 319 | 319 | 290 | 142 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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