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Underwater Point surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Monday 11 May 2026 SASTForecast update in hr min s Forecast update imminent
Underwater Point surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Underwater Point sea temperature is
17.7° C
(Which is normal for this time of year)How big are the waves at Underwater Point today?
The current surf forecast for Underwater Point at 3AM is: 5.0m 12s primary swell from a West direction and 3.0m 13s secondary swell from a Southwest direction, 3.5m 13s secondary swell from a Southwest direction (forecast issued at 07:00pm May 11). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 15ft (4.5m) | 13s |
| Afternoon (12 May) | 10ft (3.0m) | 13s |
| Evening (12 May) | 10ft (3.0m) | 12s |
Table - waves today at Underwater Point. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Mon night. Very mild (max 18°C on Mon night, min 14°C on Wed night). Winds decreasing (strong winds from the NW on Mon night, light winds from the SW by Thu morning). | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WNW 13 | W 13 | W 13 | W 12 | W 12 | W 13 | W 12 | SW 13 | SW 13 | W 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | |
12386 | 15087 | 12073 | 7025 | 4990 | 5868 | 3708 | 3384 | 3049 | 2751 | 2460 | 2388 | 2318 | 2739 | 3060 | 3251 | 3230 | 2646 | 2452 | 2002 | 1723 | 1390 | 1198 | 955 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 11:22PM1.27m | 11:55AM1.17m | 00:11AM1.39m | 12:45PM1.29m | 00:56AM1.50m | 1:30PM1.39m | ||||||||||||||||||
Low Tide | 4:58PM0.48m | 5:51AM0.39m | 5:54PM0.39m | 6:39AM0.25m | 6:43PM0.30m | 7:22AM0.12m | ||||||||||||||||||
 |  | | |  |  | |  |  |  |  | | | | | | |  | | | |  | | | |
 | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:31 | — | — | — |
 | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | 5:52 |
2 | 1 | 1 | 3 | 9 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 17 | 18 | 18 | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 |
7 | 9 | 11 | 11 | 10 | 11 | 12 | 12 | 12 | 10 | 9 | 8 | 7 | 8 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SE 12 | NNW 10 | SW 13 | W 12 | W 13 | W 12 | SW 13 | SW 13 | W 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
 kJ | 6566 | 51 | 740 | 3609 | 4990 | 5868 | 3708 | 3384 | 3049 | 2751 | 2254 | 2388 | 2318 | 2739 | 3060 | 3251 | 3230 | 2646 | 2452 | 2002 | 1723 | 1390 | 1198 | 955 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SE 12 | SSE 12 | SW 13 | SW 13 | SSW 13 | SSW 13 | W 12 | W 12 | SSW 12 | — | — | WSW 12 | W 12 | W 12 | W 11 | W 11 | W 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 12 |
| kJ | 18 | 39 | 15 | 4062 | 3857 | 3169 | 3041 | 2386 | 2180 | 2116 | — | — | 379 | 1763 | 1644 | 1389 | 1147 | 1023 | 944 | 828 | 759 | 667 | 716 | 713 |
Swell 3 Height (m) Direction Period (s) | SE 13 | — | ESE 10 | SE 10 | NNW 10 | SE 12 | SE 12 | — | NW 9 | — | — | — | — | SE 12 | SE 11 | SE 11 | — | — | — | SW 20 | SW 19 | WSW 19 | SW 18 | WSW 18 |
| kJ | 26 | — | 10 | 4 | 932 | 6 | 6 | — | 349 | — | — | — | — | 5 | 5 | 5 | — | — | — | 15 | 15 | 36 | 81 | 123 |
Wind waves Height (m) Direction Period (s) | WNW 13 | W 13 | W 13 | W 12 | W 12 | W 12 | NW 9 | NW 10 | W 12 | — | W 12 | W 12 | W 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 12386 | 15087 | 12073 | 7025 | 3782 | 3520 | 705 | 614 | 1624 | — | 2460 | 2257 | 2229 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1011 | 1031 | 338 | 338 | 317 | 20 | 20 | 338 | 20 | 24 | 188 | 188 | 188 | 188 | 188 | 20 | 20 | 20 | 3 | 3 | 2 | 3 | 3 | 2 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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