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Underwater Point surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Thursday 21 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
16.5° C
(Which is slightly cooler than normal)How big are the waves at Underwater Point today?
The current surf forecast for Underwater Point at 2AM is: 0.7m 18s primary swell from a Southwest direction and 0.8m 11s secondary swell from a West-southwest direction, 0.5m 3s secondary swell from a Northwest direction (forecast issued at 07:00pm May 21). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 2.5ft (0.8m) | 17s |
| Afternoon (22 May) | 3.5ft (1.1m) | 16s |
| Evening (22 May) | 4.5ft (1.3m) | 15s |
Table - waves today at Underwater Point. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Fri morning, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 12 | SW 12 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 13 | |
147 | 144 | 227 | 314 | 379 | 427 | 504 | 574 | 813 | 733 | 757 | 821 | 799 | 618 | 529 | 563 | 459 | 821 | 821 | 924 | 947 | 651 | 572 | 721 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 7:12PM1.32m | 7:37AM1.17m | 8:23PM1.26m | 8:56AM1.09m | 9:38PM1.25m | 10:19AM1.07m | ||||||||||||||||||
Low Tide | 1:33AM0.40m | 1:52PM0.39m | 2:54AM0.46m | 3:06PM0.45m | 4:17AM0.45m | |||||||||||||||||||
 |  | |  |  |  |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — |
 | 5:49 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | 5:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 |
13 | 14 | 14 | 14 | 14 | 15 | 17 | 17 | 16 | 17 | 15 | 16 | 17 | 17 | 16 | 16 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SW 12 | SW 12 | WSW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 13 |
 kJ | 64 | 144 | 137 | 157 | 379 | 427 | 504 | 574 | 813 | 733 | 757 | 821 | 799 | 618 | 529 | 563 | 459 | 821 | 821 | 924 | 947 | 651 | 572 | 721 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SSE 7 | SSE 7 | SW 18 | SW 11 | SW 11 | SW 10 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SSE 13 | SSE 12 | SW 17 | SW 16 | SW 16 |
| kJ | 147 | 48 | 42 | 314 | 101 | 101 | 112 | 34 | 54 | 43 | 43 | 33 | 33 | 176 | 215 | 205 | 107 | 107 | 107 | 17 | 15 | 284 | 310 | 314 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 20 | SW 19 | S 7 | S 6 | S 6 | SSW 6 | WSW 11 | SW 11 | SSE 10 | S 10 | SSE 9 | S 9 | SSE 6 | SW 16 | SSE 6 | SW 11 | SSE 6 | SSE 13 | W 11 | W 11 | SSE 12 | SSE 12 | SSE 12 |
| kJ | 136 | 134 | 227 | 34 | 31 | 27 | 25 | 99 | 55 | 9 | 7 | 9 | 7 | 15 | 94 | 7 | 217 | 6 | 17 | 2 | 2 | 15 | 14 | 28 |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 3 | NW 3 | NW 3 | NW 3 | NW 3 | — | — | — | — | — | — | — | — | — | — | — | — | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 |
| kJ | 7 | 6 | 4 | 5 | 5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 7 | 7 | 4 | 4 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 6 | 6 | 3 | 2 | 0 | 13 | 0 | 0 | 13 | 13 | 13 | 13 | 13 | 0 | 13 | 13 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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