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Thermopylae Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Thermopylae surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Sunday 24 May 2026 SASTForecast update in hr min s Forecast update imminent
Thermopylae surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thermopylae sea temperature is
15.8° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 12AM is: 2.3m 14s primary swell from a Southwest direction and 0.2m 11s secondary swell from a South-southeast direction (forecast issued at 07:00pm May 24). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | - | - |
| Afternoon (25 May) | 4.5ft (1.4m) | 13s |
| Evening (25 May) | 7ft (2.1m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 14°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Sun 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||||||||
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 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | SW 18 | WSW 18 | SW 17 | |
649 | 1537 | 1858 | 2125 | 2471 | 2708 | 2764 | 2816 | 2553 | 2265 | 2146 | 1891 | 1700 | 1458 | 1299 | 1258 | 1154 | 1997 | 1915 | 1830 | 2288 | 2316 | 7301 | 7629 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | cross-on | cross | cross-on | glassy | glassy | glassy | glassy | on | cross-on | cross | glassy | glassy | glassy | glassy | cross | cross-on | |
High Tide | 10:53PM1.50m | 11:37AM1.34m | 11:53PM1.54m | 12:32PM1.39m | 00:41AM1.57m | 1:16PM1.45m | ||||||||||||||||||
Low Tide | 4:33PM0.71m | 5:35AM0.63m | 5:37PM0.69m | 6:28AM0.57m | 6:29PM0.66m | 7:10AM0.53m | ||||||||||||||||||
 |  | |  |  | | | | | | | | | |  | | | | | | | | | | |
 | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:39 | — | — | — |
 | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | 5:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 19 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 16 | 16 |
16 | 15 | 15 | 15 | 16 | 16 | 17 | 19 | 16 | 15 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 14 | 16 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 18 | SW 17 |
 kJ | 649 | 1537 | 1858 | 2125 | 2471 | 2708 | 2764 | 2816 | 2553 | 2265 | 2146 | 1891 | 1700 | 1458 | 1299 | 1258 | 1154 | 1997 | 1915 | 1830 | 2288 | 1944 | 7301 | 7629 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SW 17 | SW 16 | — | SW 23 | — | — | SW 18 | — | — |
| kJ | 496 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 4 | 100 | 302 | — | 20 | — | — | 2316 | — | — |
Swell 3 Height (m) Direction Period (s) | SSE 12 | — | SSE 11 | — | — | — | — | — | — | — | — | — | — | — | — | SE 10 | SE 10 | — | — | — | — | — | — | — |
| kJ | 14 | — | 24 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 1 | 1 | 0 | 0 | 0 | 0 | 17 | 2 | 1 | 0 | 0 | 0 | 0 | 11 | 17 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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