Surf Forecasts:
How big are the waves at Underwater Point today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 7ft (2.1m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 6ft (1.9m), 13s period with WSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 5.5ft (1.7m), 12s period with WSW swell.
The current surf forecast for Underwater Point at 5PM is: 1.8m 13s primary swell from a West-southwest direction (forecast issued at 01:00pm September 20). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 7ft (2.1m) | 13s |
| Afternoon (20 Sep) | 6ft (1.9m) | 13s |
| Evening (20 Sep) | 5.5ft (1.7m) | 12s |
Table - waves today at Underwater Point. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 15°C on Wed morning). Winds decreasing (strong winds from the SE on Sun night, calm by Tue morning). | |||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||
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 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 11 | WSW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1401 | 1180 | 1100 | 953 | 784 | 680 | 616 | 536 | 536 | 456 | 373 | 329 | 314 | 303 | 303 | 444 | 431 | 423 | 494 | 435 | 384 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | glassy | cross-on | on | on | cross-on |
High Tide | 11:22AM0.95m | 11:39PM0.99m | 12:27PM1.07m | 00:35AM1.10m | 1:03PM1.21m | ||||||||||||||||
Low Tide | 5:46PM0.68m | 6:12AM0.56m | 6:42PM0.56m | 6:53AM0.44m | 7:17PM0.43m | ||||||||||||||||
 | | |  | | | | | | | | | | | | |  |  | |  | | |
 | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — |
 | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 21 | 19 | 18 | 17 | 16 | 16 | 16 | 18 | 22 | 22 | 22 | 20 | 19 | 20 | 22 | 24 | 22 | 19 | 18 | 16 |
Feels °C | 13 | 17 | 14 | 12 | 11 | 11 | 10 | 10 | 13 | 17 | 17 | 18 | 18 | 17 | 19 | 22 | 25 | 21 | 18 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 11 | WSW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 |
| kJ | 1401 | 1180 | 1100 | 953 | 784 | 680 | 616 | 536 | 536 | 456 | 373 | 329 | 314 | 303 | 303 | 444 | 431 | 423 | 494 | 435 | 384 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SE 6 | WSW 11 | WSW 11 | WSW 10 | SE 7 | SE 8 | SE 7 |
| kJ | — | — | — | — | — | — | — | — | 58 | 57 | 86 | 142 | 211 | 234 | 56 | 135 | 128 | 86 | 16 | 20 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | SSW 14 | SW 14 | SE 6 | SE 6 | SE 6 | S 16 | NW 4 | NNW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 138 | 133 | 186 | 40 | 26 | 15 | 5 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 7 | — | — | — | — | — | SSW 4 |
| kJ | 69 | 69 | 94 | 124 | 214 | 190 | 199 | 169 | 149 | 181 | 177 | 166 | 130 | 74 | 165 | — | — | — | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 28 | 28 | 37 | 37 | 31 | 31 | 27 | 26 | 26 | 26 | 26 | 0 | 13 | 0 | 0 | 0 | 3 | 2 | 2 | 20 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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