Surf Forecasts:
How big are the waves at Dunes today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 8ft (2.5m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 8ft (2.5m), 13s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 10ft (3.0m), 12s period with SW swell.
The current surf forecast for Dunes at 10AM is: 2.0m 12s primary swell from a West-southwest direction and 1.6m 13s secondary swell from a Southwest direction (forecast issued at 01:00am August 18). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 8ft (2.5m) | 12s |
| Afternoon (18 Aug) | 8ft (2.5m) | 13s |
| Evening (18 Aug) | 10ft (3.0m) | 12s |
Table - waves today at Dunes. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 14°C on Tue morning, min 12°C on Tue night). Winds increasing (light winds from the S on Wed night, fresh winds from the SE by Thu night). | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 | 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 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 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1816 | 1974 | 2001 | 1159 | 2063 | 2859 | 2972 | 2924 | 2744 | 2454 | 2196 | 2078 | 1978 | 1742 | 1665 | 1693 | 2218 | 3676 | 4144 | 3675 | 3116 | 2412 | 1860 | 1539 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:31AM1.21m | 6:47PM1.29m | 7:10AM1.09m | 7:28PM1.15m | 8:04AM0.99m | 8:30PM1.04m | ||||||||||||||||||
Low Tide | 00:31AM0.30m | 12:29PM0.38m | 1:08AM0.42m | 1:05PM0.51m | 1:54AM0.54m | 1:55PM0.63m | ||||||||||||||||||
 | |  |  | | | | |  | | | | | | | | | | | | | | | | |
 | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:19 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 |
Feels °C | 15 | 13 | 13 | 12 | 11 | 10 | 8 | 9 | 8 | 8 | 9 | 10 | 11 | 11 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 8 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 |
| kJ | 1816 | 1974 | 2001 | 1159 | 2063 | 2859 | 2972 | 2924 | 2744 | 2454 | 2196 | 2078 | 1978 | 1742 | 1665 | 1693 | 2218 | 3676 | 4144 | 3675 | 3116 | 2412 | 1860 | 1539 |
Swell 2 Height (m) Direction Period (s) | SW 14 | WSW 13 | E 11 | SW 13 | WSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 304 | 69 | 2 | 837 | 519 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | E 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 9 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 4 | ESE 4 | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | SSE 4 | SE 5 |
| kJ | — | — | — | — | — | — | — | 10 | 13 | 14 | — | — | — | — | — | — | — | — | — | — | — | 8 | 31 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 1 | 0 | 0 | 2 | 15 | 46 | 23 | 11 | 15 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 15 | 347 | 23 | 23 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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