Surf Forecasts:
How big are the waves at Jacobs Bay today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 10ft (3.0m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 8ft (2.5m), 13s period with WSW swell.
- Evening surf: Evening surf (17 Aug, local time) - 8ft (2.5m), 13s period with WSW swell.
The current surf forecast for Jacobs Bay at 6PM is: 2.5m 13s primary swell from a West-southwest direction and 0.7m 16s secondary swell from a West-southwest direction (forecast issued at 01:00pm August 17). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 10ft (3.0m) | 13s |
| Afternoon (17 Aug) | 8ft (2.5m) | 13s |
| Evening (17 Aug) | 8ft (2.5m) | 13s |
Table - waves today at Jacobs Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Mon afternoon, min 12°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||
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) | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2586 | 2412 | 2084 | 2279 | 2116 | 2026 | 1820 | 1879 | 1743 | 948 | 1952 | 2878 | 2834 | 2801 | 2495 | 2221 | 2073 | 1966 | 1830 | 1731 | 1539 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off |
High Tide | 6:13PM1.44m | 6:34AM1.23m | 6:49PM1.30m | 7:14AM1.11m | 7:31PM1.16m | ||||||||||||||||
Low Tide | 11:57AM0.26m | 00:32AM0.30m | 12:31PM0.39m | 1:09AM0.43m | 1:08PM0.52m | ||||||||||||||||
 |  | |  |  |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — |
 | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 15 | 14 | 14 | 14 | 13 | 14 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 14 |
Feels °C | 15 | 15 | 16 | 14 | 12 | 11 | 12 | 10 | 10 | 10 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 2586 | 2412 | 2084 | 2279 | 2116 | 2026 | 1820 | 1879 | 1743 | 948 | 1952 | 2878 | 2834 | 2801 | 2495 | 2221 | 2073 | 1966 | 1830 | 1731 | 1539 |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 16 | — | — | — | SW 13 | — | SW 14 | SSW 13 | WSW 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 276 | — | — | — | 398 | — | 416 | 862 | 447 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 299 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 138 | 31 | 28 | 28 | 28 | 28 | 28 | 28 | 150 | 150 | 155 | 29 | 29 | 29 | 29 | 106 | 131 | 114 | 28 | 0 |
Best forecast wave conditions in West Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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