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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 pm Friday 20 Feb 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
16.5° C
(Which is 3.3°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 7PM is: 1.8m 7s primary swell from a South-southeast direction and 1.1m 11s secondary swell from a Southwest direction, 0.7m 14s secondary swell from a West-northwest direction (forecast issued at 01:00pm February 20). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Feb) | 4.5ft (1.3m) | 12s |
| Afternoon (20 Feb) | 4ft (1.2m) | 12s |
| Evening (20 Feb) | 6ft (1.8m) | 7s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 494 | 383 | 292 | 337 | 574 | 396 | 340 | 320 | 269 | 264 | 306 | 470 | 403 | 114 | 113 | 95 | 169 | 178 | 232 | 309 | 382 | 370 | 347 | 336 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | glass | glass | glass | cross- on | cross- on | cross- on | glass | cross | cross | cross | cross | cross- on | cross- on | on | glass | glass | cross- on | cross | cross |
High Tide / height (m) | 5:16PM 1.76 | 5:34AM 1.87 | 5:53PM 1.68 | 6:12AM 1.79 | 6:35PM 1.58 | 6:57AM 1.67 | ||||||||||||||||||
Low Tide / height (m) | 11:11AM 0.32 | 11:17PM 0.35 | 11:47AM 0.38 | 11:52PM 0.43 | 12:28PM 0.47 | 12:33AM 0.55 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:28 |
| Sunset | - | - | 7:34 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - |
 | | |  | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 25 | 26 | 25 | 23 | 22 | 20 | 20 | 23 | 24 | 24 | 23 | 21 | 19 | 18 | 18 | 21 | 21 | 21 | 20 | 19 | 18 | 17 | 17 |
| Feels °C (?) | 25 | 25 | 26 | 26 | 24 | 24 | 22 | 22 | 24 | 24 | 25 | 25 | 22 | 19 | 17 | 17 | 20 | 20 | 21 | 22 | 21 | 19 | 18 | 18 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thermopylae surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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