Surf Forecasts:
How big are the waves at Jacobs Bay today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 5ft (1.6m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 5ft (1.6m), 12s period with SW swell.
- Evening surf: Evening surf (18 Sep, local time) - 5ft (1.6m), 13s period with SW swell.
The current surf forecast for Jacobs Bay at 9PM is: 1.6m 13s primary swell from a Southwest direction and 0.3m 18s secondary swell from a Southwest direction, 1.9m 8s secondary swell from a South direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 5ft (1.6m) | 11s |
| Afternoon (18 Sep) | 5ft (1.6m) | 12s |
| Evening (18 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Mon morning, min 15°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 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) | 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 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 600 | 652 | 796 | 878 | 796 | 784 | 736 | 712 | 514 | 407 | 403 | 1048 | 1343 | 1482 | 1367 | 1261 | 1200 | 1011 | 918 | 749 | 725 |
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 | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off |
High Tide | 7:34PM1.01m | 8:52AM0.93m | 9:41PM0.95m | 11:18AM0.97m | |||||||||||||||||
Low Tide | 1:06PM0.64m | 2:04AM0.64m | 3:02PM0.73m | 4:49AM0.66m | 5:48PM0.68m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 20 | 21 | 20 | 17 | 16 | 15 | 15 | 19 | 20 | 21 | 22 | 21 | 20 | 20 | 21 | 26 | 25 | 23 | 25 | 25 |
Feels °C | 8 | 13 | 14 | 15 | 13 | 12 | 11 | 11 | 14 | 15 | 16 | 18 | 17 | 17 | 18 | 19 | 24 | 21 | 20 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 600 | 652 | 796 | 878 | 796 | 784 | 736 | 712 | 514 | 407 | 403 | 1048 | 1343 | 1482 | 1367 | 1261 | 1200 | 1011 | 918 | 749 | 725 |
Swell 2 Height (m) Direction Period (s) | — | W 20 | — | SW 18 | WSW 18 | S 8 | SW 16 | S 8 | SW 15 | SW 14 | SW 14 | — | — | — | — | S 8 | S 7 | — | — | — | — |
| kJ | — | 7 | — | 49 | 31 | 191 | 163 | 133 | 255 | 346 | 350 | — | — | — | — | 117 | 76 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 16 | SW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 127 | 65 | — | — | — | — | — | — | — | — | — | — | — | — | — |
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 6 | S 7 | S 8 | S 8 | S 7 | — | S 7 | S 7 | S 6 | S 7 | S 7 |
| kJ | 266 | 374 | 507 | 526 | 439 | 295 | 195 | — | 130 | 157 | 113 | 274 | 447 | 302 | 200 | — | 124 | 92 | 100 | 179 | 246 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 84 | 30 | 82 | 84 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 0 | 0 | 18 | 31 | 29 | 28 | 0 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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