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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 am Friday 27 Mar 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
14.4° C
(Which is 4.6°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 3PM is: 1.1m 9s primary swell from a Southwest direction and 0.6m 12s secondary swell from a South-southwest direction, 0.4m 3s secondary swell from a Northwest direction (forecast issued at 07:00am March 27). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Mar) | 4.5ft (1.3m) | 9s |
| Afternoon (27 Mar) | 3.5ft (1.1m) | 9s |
| Evening (27 Mar) | 4.5ft (1.4m) | 9s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 27 | Saturday 28 | Sunday 29 | Mon 30 | |||||||||||||||||||||
| 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 | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 350 | 263 | 199 | 202 | 232 | 273 | 372 | 313 | 732 | 1168 | 1853 | 2090 | 1896 | 1652 | 1190 | 1009 | 1047 | 783 | 557 | 408 | 341 | 647 | 428 | 325 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross- on | on | on | on | on | on | cross- on | cross | cross | cross- off | cross- off | cross | cross- on | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:28AM 1.34 | 12:13AM 1.45 | 12:46PM 1.44 | 1:09AM 1.59 | 1:35PM 1.55 | 1:50AM 1.71 | ||||||||||||||||||
Low Tide / height (m) | 5:21AM 0.80 | 5:55PM 0.73 | 6:41AM 0.67 | 6:57PM 0.63 | 7:32AM 0.54 | 7:41PM 0.53 | ||||||||||||||||||
Friday 27 | Saturday 28 | Sunday 29 | Mon 30 | |||||||||||||||||||||
| Sunrise | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:45 | - | - | - |
 |  | | |  |  |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 19 | 20 | 19 | 19 | 18 | 19 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 19 | 19 | 19 | 18 | 17 | 17 |
| Feels °C (?) | 17 | 17 | 17 | 18 | 18 | 19 | 17 | 19 | 17 | 18 | 18 | 17 | 17 | 18 | 17 | 18 | 17 | 17 | 18 | 16 | 16 | 15 | 15 | 16 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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