Surf Forecasts:
How big are the waves at Jacobs Bay today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 6ft (1.9m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 6ft (1.8m), 13s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 5ft (1.6m), 13s period with WSW swell.
The current surf forecast for Jacobs Bay at 3AM is: 2.1m 13s primary swell from a Southwest direction and 1.3m 7s secondary swell from a South direction, 1.6m 7s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 19). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 6ft (1.9m) | 13s |
| Afternoon (20 Sep) | 6ft (1.8m) | 13s |
| Evening (20 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 19°C on Tue afternoon). Winds increasing (light winds from the S on Mon morning, fresh winds from the N by Tue morning). | |||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||
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 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 12 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 455 | 1147 | 1343 | 1482 | 1367 | 1261 | 1200 | 1094 | 918 | 835 | 714 | 573 | 488 | 480 | 472 | 414 | 359 | 373 | 283 |
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 | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off |
High Tide | 9:41PM0.95m | 11:18AM0.97m | 11:38PM1.01m | 12:24PM1.09m | |||||||||||||||
Low Tide | 3:02PM0.73m | 4:49AM0.66m | 5:48PM0.68m | 6:11AM0.56m | 6:42PM0.56m | ||||||||||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — |
 | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 22 | 22 | 21 | 22 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 25 | 25 | 24 | 25 | 25 |
Feels °C | 15 | 18 | 19 | 20 | 19 | 20 | 22 | 21 | 20 | 20 | 20 | 21 | 20 | 20 | 25 | 24 | 22 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | S 7 | WSW 12 | WSW 12 | SW 12 | WSW 12 | SW 11 | SW 11 |
| kJ | 455 | 1147 | 1343 | 1482 | 1367 | 1261 | 1200 | 1094 | 918 | 835 | 714 | 573 | 188 | 480 | 472 | 414 | 359 | 373 | 283 |
Swell 2 Height (m) Direction Period (s) | SW 14 | — | — | S 7 | S 7 | S 7 | S 6 | — | — | — | — | S 7 | WSW 12 | S 7 | S 6 | S 6 | SW 15 | SSW 15 | S 6 |
| kJ | 350 | — | — | 195 | 139 | 89 | 38 | — | — | — | — | 131 | 488 | 107 | 78 | 65 | 57 | 87 | 33 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 18 | — | SSW 15 | SW 15 | — | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 23 | 57 | — | 167 |
Wind waves Height (m) Direction Period (s) | S 6 | S 6 | S 7 | SSE 7 | — | — | S 7 | S 6 | S 6 | S 6 | S 7 | S 7 | — | — | — | — | S 6 | S 7 | — |
| kJ | 79 | 146 | 220 | 254 | — | — | 69 | 80 | 80 | 127 | 173 | 184 | — | — | — | — | 51 | 43 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 82 | 28 | 28 | 0 | 0 | 0 | 18 | 29 | 29 | 28 | 0 | 0 | 0 | 0 | 17 | 29 | 29 | 28 | 0 |
Best forecast wave conditions in West Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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