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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 1 am Friday 01 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
16.1° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 8AM is: 2.5m 13s primary swell from a Southwest direction and 0.2m 11s secondary swell from a South-southeast direction, 0.9m 4s secondary swell from a Northwest direction (forecast issued at 01:00am May 01). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 8ft (2.5m) | 13s |
| Afternoon (01 May) | 8ft (2.5m) | 12s |
| Evening (01 May) | 10ft (3.0m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Sun night. Very mild (max 19°C on Sun afternoon, min 14°C on Fri morning). Winds decreasing (fresh winds from the NNW on Fri afternoon, light winds from the N by Sat night). | ||||||||||||||||||||||||
Friday 1 | Saturday 2 | Sunday 3 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 10 | W 10 | W 10 | WSW 10 | W 10 | W 10 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | |
2725 | 2168 | 2207 | 2039 | 2077 | 2078 | 2244 | 2362 | 2195 | 2166 | 1800 | 1514 | 1518 | 1697 | 1254 | 936 | 784 | 693 | 596 | 665 | 899 | 2137 | 2253 | 1987 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | |
High Tide | 2:57AM1.75m | 3:20PM1.66m | 3:25AM1.74m | 3:49PM1.65m | 3:54AM1.70m | 4:19PM1.62m | ||||||||||||||||||
Low Tide | 9:11AM0.37m | 9:16PM0.47m | 9:37AM0.38m | 9:44PM0.50m | 10:04AM0.40m | 10:12PM0.54m | ||||||||||||||||||
 | |  | |  | |  | | | | | | | | | |  | |  | | | | | | |
 | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 14 | 15 | 17 | 16 | 16 | 15 | 15 | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 18 | 19 | 18 | 18 | 17 |
14 | 12 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 8 | 9 | 11 | 12 | 14 | 15 | 15 | 16 | 14 | 14 | 16 | 17 | 15 | 16 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 10 | W 10 | W 10 | WSW 10 | W 10 | W 10 | WSW 10 | W 10 | WSW 14 | WSW 14 | WSW 14 |
 kJ | 2725 | 2168 | 2207 | 2039 | 2077 | 2078 | 2244 | 2362 | 2195 | 2166 | 1800 | 1514 | 1518 | 1697 | 1254 | 936 | 784 | 693 | 596 | 598 | 499 | 2137 | 2253 | 1987 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SSE 11 | SSE 11 | SE 11 | SE 10 | SE 10 | S 15 | SE 10 | S 15 | S 15 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | SSW 10 | WSW 15 | WSW 15 | WSW 14 | S 10 | S 14 | S 14 |
| kJ | 31 | 12 | 11 | 4 | 4 | 4 | 109 | 4 | 39 | 38 | 97 | 157 | 195 | 154 | 149 | 149 | 138 | 173 | 574 | 665 | 899 | 49 | 106 | 94 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 10 | — | W 21 | W 21 | S 14 | S 15 | WSW 19 | WSW 18 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | S 10 | S 10 | S 10 | SSW 15 | S 10 | S 10 |
| kJ | — | — | — | — | — | — | 4 | — | 9 | 9 | 66 | 17 | 71 | 126 | 180 | 255 | 298 | 407 | 133 | 102 | 50 | 71 | 31 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | NW 4 | NNW 4 | NNW 4 | NW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | — | — | — | — | WNW 10 | NNW 4 | N 4 | NNW 4 |
| kJ | — | — | 21 | 27 | 54 | 94 | 74 | 75 | 108 | 128 | 208 | 275 | 153 | 207 | 98 | — | — | — | — | — | 502 | 32 | 11 | 22 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 11 | 31 | 277 | 191 | 191 | 191 | 192 | 174 | 174 | 174 | 277 | 31 | 24 | 11 | 6 | 6 | 6 | 6 | 11 | 24 | 24 | 31 | 31 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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