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Dias Beach Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Dias Beach surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Thursday 21 May 2026 SASTForecast update in hr min s Forecast update imminent
Dias Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dias Beach sea temperature is
16.5° C
(Which is slightly cooler than normal)How big are the waves at Dias Beach today?
The current surf forecast for Dias Beach at 10AM is: 1.3m 8s primary swell from a Southeast direction and 0.7m 13s secondary swell from a Southwest direction (forecast issued at 01:00am May 21). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 4.5ft (1.3m) | 8s |
| Afternoon (21 May) | 3.5ft (1.1m) | 9s |
| Evening (21 May) | 1.5ft (0.5m) | 19s |
Table - waves today at Dias Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SW 13 | SE 9 | SE 9 | 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 | |
367 | 299 | 273 | 250 | 210 | 168 | 144 | 224 | 314 | 307 | 427 | 504 | 574 | 486 | 724 | 844 | 821 | 787 | 834 | 591 | 629 | 459 | 1092 | 992 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | cross-off | cross | cross-off | cross | cross-off | cross | cross | cross-on | cross-on | on | cross-on | on | on | cross-on | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 6:31AM1.30m | 7:12PM1.32m | 7:37AM1.17m | 8:23PM1.26m | 8:56AM1.09m | 9:38PM1.25m | ||||||||||||||||||
Low Tide | 00:24AM0.31m | 12:48PM0.29m | 1:33AM0.40m | 1:52PM0.39m | 2:54AM0.46m | 3:06PM0.45m | ||||||||||||||||||
 |  |  | | | |  | | | |  |  | | | | | | | | | | | | | |
 | — | 7:35 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 18 | 18 | 17 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 |
19 | 19 | 17 | 15 | 16 | 13 | 15 | 17 | 17 | 17 | 15 | 14 | 16 | 16 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SW 18 | SSW 6 | SW 16 | SSW 6 | S 6 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 |
 kJ | 367 | 299 | 273 | 250 | 210 | 168 | 118 | 109 | 93 | 307 | 53 | 504 | 134 | 137 | 724 | 844 | 821 | 787 | 834 | 591 | 629 | 459 | 1092 | 992 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 18 | SW 11 | SW 17 | SW 11 | SW 16 | SW 16 | S 7 | S 7 | S 6 | S 6 | S 6 | SW 8 | SW 8 | SW 11 | SSE 13 | SE 13 |
| kJ | 119 | 113 | 171 | 199 | 175 | 147 | 144 | 137 | 314 | 121 | 427 | 115 | 574 | 486 | 123 | 104 | 64 | 49 | 26 | 109 | 104 | 250 | 18 | 27 |
Swell 3 Height (m) Direction Period (s) | WSW 11 | SSE 11 | SE 11 | SSE 11 | SW 20 | SW 20 | SW 20 | SW 19 | SW 11 | SE 8 | SW 11 | ESE 8 | WSW 11 | SW 11 | ESE 8 | SSE 10 | SE 13 | S 13 | S 9 | SSE 6 | SSE 6 | SW 8 | ESE 12 | E 12 |
| kJ | 46 | 47 | 29 | 12 | 65 | 136 | 134 | 224 | 126 | 53 | 101 | 26 | 99 | 115 | 6 | 10 | 7 | 3 | 6 | 20 | 13 | 79 | 14 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 2 | NNW 2 | NW 3 | NW 3 | NW 3 | NW 3 | NW 3 | — | SSW 6 | — | — | — | — | — | — | — | — | — | — | SE 6 | SE 3 |
| kJ | — | — | — | 1 | 1 | 5 | 6 | 4 | 7 | 5 | — | 100 | — | — | — | — | — | — | — | — | — | — | 11 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 21 | 2 | 15 | 29 | 15 | 0 | 0 | 0 | 2 | 2 | 29 | 15 | 15 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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