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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 Saturday 02 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 1.7°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 10AM is: 3.0m 11s primary swell from a West-southwest direction and 0.7m 11s secondary swell from a South direction (forecast issued at 01:00am May 02). An open ocean swell of 2.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 May) | 10ft (3.0m) | 11s |
| Afternoon (02 May) | 8ft (2.5m) | 11s |
| Evening (02 May) | 8ft (2.5m) | 10s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Sun night. Very mild (max 19°C on Sun afternoon, min 14°C on Sat morning). Winds decreasing (fresh winds from the N on Sat morning, calm by Mon night). | ||||||||||||||||||||||||
Saturday 2 | Sunday 3 | Monday 4 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
WSW 12 | SW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 11 | W 10 | W 10 | W 10 | WSW 10 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | W 14 | W 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | |
2324 | 2128 | 2337 | 1857 | 1475 | 1412 | 1489 | 1152 | 867 | 693 | 707 | 818 | 2020 | 2137 | 2471 | 2394 | 2395 | 1864 | 1750 | 1915 | 1915 | 1712 | 1455 | 1431 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | on | on | on | on | on | on | cross | |
High Tide | 3:25AM1.74m | 3:49PM1.65m | 3:54AM1.70m | 4:19PM1.62m | 4:22AM1.64m | 4:50PM1.58m | ||||||||||||||||||
Low Tide | 9:37AM0.38m | 9:44PM0.50m | 10:04AM0.40m | 10:12PM0.54m | 10:32AM0.44m | 10:43PM0.60m | ||||||||||||||||||
 |  |  |  | | | | |  |  |  | | | | | |  |  |  | | | | | | |
 | — | 7:20 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — | — |
— | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 8 | 3 | 1 | 1 | — | 1 | 1 | — | |
Temp °C | 15 | 15 | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 18 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 15 |
8 | 9 | 7 | 9 | 11 | 14 | 15 | 15 | 15 | 14 | 14 | 15 | 17 | 17 | 16 | 14 | 15 | 15 | 13 | 13 | 13 | 13 | 15 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | SW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 11 | W 10 | W 10 | W 10 | WSW 10 | W 10 | WSW 14 | WSW 14 | WSW 14 | W 14 | W 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 |
 kJ | 2324 | 2128 | 2337 | 1857 | 1475 | 1412 | 1489 | 1152 | 867 | 693 | 707 | 596 | 2020 | 2137 | 2471 | 2394 | 2395 | 1864 | 1750 | 1915 | 1915 | 1712 | 1455 | 1431 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 15 | S 12 | S 11 | S 11 | SSW 11 | S 11 | SSW 11 | S 10 | SSW 10 | WSW 15 | WSW 15 | S 10 | S 10 | S 14 | S 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 |
| kJ | 39 | 38 | 98 | 157 | 195 | 198 | 188 | 187 | 174 | 180 | 670 | 818 | 50 | 49 | 106 | 136 | 139 | 229 | 215 | 198 | 195 | 192 | 186 | 133 |
Swell 3 Height (m) Direction Period (s) | W 21 | W 21 | S 14 | S 15 | WSW 19 | WSW 18 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | S 10 | S 10 | SSW 10 | SSW 15 | S 10 | S 10 | S 10 | SSE 10 | S 13 | SE 13 | SE 13 | SE 13 | — | S 12 |
| kJ | 9 | 9 | 66 | 38 | 71 | 126 | 180 | 255 | 298 | 407 | 130 | 52 | 32 | 71 | 32 | 31 | 31 | 9 | 4 | 7 | 7 | 6 | — | 3 |
Wind waves Height (m) Direction Period (s) | NNW 6 | NW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 6 | NNW 6 | — | — | — | — | — | — | — | N 4 | N 4 | W 10 | — | — | — | — | — | — | — |
| kJ | 211 | 359 | 254 | 333 | 332 | 132 | 229 | — | — | — | — | — | — | — | 12 | 15 | 724 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 174 | 234 | 176 | 277 | 283 | 31 | 11 | 6 | 6 | 11 | 11 | 31 | 17 | 24 | 31 | 91 | 17 | 26 | 344 | 26 | 26 | 26 | 17 | 6 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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