Surf Forecasts:
How big are the waves at Dumps today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 7ft (2.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
- Evening surf: Evening surf (17 Sep, local time) - 6ft (1.8m), 12s period with SW swell.
The current surf forecast for Dumps at 9PM is: 1.8m 12s primary swell from a Southwest direction (forecast issued at 01:00pm September 17). An open ocean swell of 1.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 7ft (2.1m) | 12s |
| Afternoon (17 Sep) | 6ft (1.9m) | 12s |
| Evening (17 Sep) | 6ft (1.8m) | 12s |
Table - waves today at Dumps. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 11°C on Thu night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the SE by Sun morning). | |||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 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) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1272 | 1111 | 945 | 851 | 765 | 739 | 713 | 652 | 713 | 726 | 878 | 796 | 864 | 736 | 657 | 700 | 448 | 355 | 978 | 1220 | 1527 |
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 | off | off | off | off | cross-off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:43PM1.36m | 7:19AM1.25m | 7:33PM1.24m | 8:50AM1.17m | 9:28PM1.15m | ||||||||||||||||
Low Tide | 12:24PM0.73m | 00:57AM0.74m | 1:11PM0.85m | 2:06AM0.84m | 3:12PM0.95m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 14 | 13 | 11 | 11 | 11 | 15 | 20 | 20 | 16 | 13 | 12 | 12 | 13 | 17 | 20 | 20 | 19 | 17 |
Feels °C | 8 | 9 | 7 | 8 | 8 | 6 | 8 | 7 | 10 | 14 | 14 | 13 | 11 | 10 | 10 | 11 | 15 | 17 | 18 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 |
| kJ | 1272 | 1111 | 945 | 851 | 765 | 739 | 713 | 652 | 713 | 726 | 878 | 796 | 864 | 736 | 657 | 700 | 448 | 355 | 978 | 1220 | 1527 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 20 | SW 20 | SW 18 | SW 18 | WSW 18 | SW 16 | SW 16 | — | SW 14 | SW 14 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 7 | 15 | 12 | 49 | 31 | 91 | 127 | — | 301 | 350 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 7 | SSE 7 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 7 | SSE 7 | SSE 6 |
| kJ | 328 | 350 | 444 | 356 | 271 | 253 | 201 | 195 | 253 | 340 | 458 | 323 | 206 | 123 | 150 | 138 | 116 | 187 | 261 | 261 | 193 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 176 | 233 | 3869 | 109 | 4 | 0 | 0 | 0 | 0 | 10 | 4 | 9 | 0 | 0 | 0 | 0 | 0 | 48 | 0 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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