Surf Forecasts:
How big are the waves at Jacobs Bay today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 4.5ft (1.3m), 9s period with SW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 3ft (0.9m), 14s period with SW swell.
- Evening surf: Evening surf (18 Jul, local time) - 5ft (1.5m), 12s period with SW swell.
The current surf forecast for Jacobs Bay at 3AM is: 1.4m 10s primary swell from a Southwest direction and 0.4m 13s secondary swell from a South direction (forecast issued at 07:00pm July 17). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 4.5ft (1.3m) | 9s |
| Afternoon (18 Jul) | 3ft (0.9m) | 14s |
| Evening (18 Jul) | 5ft (1.5m) | 12s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 13°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
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 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 647 | 541 | 425 | 416 | 377 | 269 | 166 | 304 | 374 | 741 | 666 | 528 | 511 | 503 | 450 | 442 | 406 | 524 | 445 |
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 | glassy | glassy | glassy | on | on | glassy | on | cross-on | glassy | glassy | cross-on | cross | cross-off | cross-off |
High Tide | 5:38PM1.61m | 5:56AM1.41m | 6:19PM1.54m | 6:39AM1.30m | 7:01PM1.44m | ||||||||||||||
Low Tide | 11:55PM0.15m | 12:00PM0.17m | 00:39AM0.23m | 12:40PM0.28m | |||||||||||||||
 |  |  | | |  | | |  |  | | | | | | | | | | |
 | — | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:47 | — | — | — | — | — | — |
 | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 15 | 15 | 14 |
Feels °C | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 15 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 |
| kJ | 647 | 541 | 425 | 416 | 377 | 269 | 166 | 217 | 374 | 741 | 666 | 528 | 511 | 503 | 450 | 442 | 406 | 524 | 445 |
Swell 2 Height (m) Direction Period (s) | — | S 13 | S 13 | S 13 | S 13 | S 12 | WSW 10 | SW 14 | SW 9 | WSW 12 | WSW 11 | W 11 | WSW 11 | W 11 | W 11 | W 10 | W 10 | W 10 | SSW 12 |
| kJ | — | 14 | 31 | 55 | 50 | 72 | 128 | 304 | 132 | 179 | 202 | 242 | 198 | 188 | 184 | 177 | 133 | 127 | 355 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | S 11 | WSW 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | SSE 10 | W 10 |
| kJ | — | — | 11 | 10 | 38 | 77 | 160 | 121 | 179 | 114 | 110 | 100 | 100 | 106 | 82 | 55 | 51 | 32 | 125 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 28 | 0 | 17 | 17 | 0 | 0 | 31 | 31 | 0 | 28 |
Best forecast wave conditions in West Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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