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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 Wednesday 03 Dec 2025 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
14.6° C
(Which is 3.8°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 11PM is: 1.7m 7s primary swell from a South-southeast direction and 1.0m 11s secondary swell from a West-southwest direction, 0.1m 11s secondary swell from a Northwest direction (forecast issued at 07:00pm December 03). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Dec) | - | - |
| Afternoon (03 Dec) | 6ft (1.9m) | 7s |
| Evening (03 Dec) | 7.5ft (2.3m) | 7s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 11 | 8 | 7 | 11 | 11 | 8 | 9 | 9 | 9 | 9 | 11 | 10 | 10 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 395 | 637 | 310 | 247 | 250 | 312 | 180 | 180 | 245 | 264 | 215 | 215 | 181 | 146 | 157 | 273 | 152 | 253 | 291 | 192 | 161 | 153 | 149 | 112 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 2:26AM 1.75 | 2:38PM 1.89 | 3:12AM 1.80 | 3:25PM 1.88 | 3:58AM 1.80 | |||||||||||||||||||
Low Tide / height (m) | 8:15PM 0.26 | 8:27AM 0.38 | 8:59PM 0.23 | 9:15AM 0.36 | 9:43PM 0.24 | 10:03AM 0.39 | ||||||||||||||||||
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - |
| Sunset | 7:43 | - | - | - | - | - | - | - | 7:44 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - |
 |  | | | | | | | | | | | | | | |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 19 | 18 | 17 | 20 | 25 | 24 | 22 | 19 | 18 | 18 | 18 | 19 | 21 | 21 | 19 | 18 | 18 | 18 | 17 | 18 | 20 | 20 |
| Feels °C (?) | 17 | 17 | 16 | 16 | 15 | 19 | 23 | 21 | 19 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 14 | 13 | 14 | 14 | 12 | 13 | 15 | 14 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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