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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 Thursday 09 Apr 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 1.8°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 6AM is: 1.5m 12s primary swell from a Southwest direction and 0.9m 12s secondary swell from a South direction (forecast issued at 01:00am April 09). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Apr) | 4.5ft (1.4m) | 12s |
| Afternoon (09 Apr) | 3.5ft (1.0m) | 17s |
| Evening (09 Apr) | 4.5ft (1.4m) | 16s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 09 | Friday 10 | Saturday 11 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 12 | 12 | 12 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 510 | 553 | 573 | 533 | 542 | 567 | 661 | 976 | 1076 | 1914 | 1862 | 1736 | 1559 | 1451 | 1280 | 1162 | 1179 | 1179 | 1179 | 1179 | 1069 | 1037 | 1006 | 812 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | glass | cross- off | glass | cross- on | cross- on | glass | cross | cross | cross | cross | on | on | cross | cross- off | cross- off | glass | glass | cross- off | cross- on | cross- on | cross | cross- off |
High Tide / height (m) | 7:01AM 1.30 | 8:06PM 1.26 | 8:28AM 1.20 | 10:05PM 1.25 | 10:47AM 1.21 | |||||||||||||||||||
Low Tide / height (m) | 12:52AM 0.86 | 1:26PM 0.81 | 2:24AM 0.94 | 3:14PM 0.87 | 4:47AM 0.91 | 5:06PM 0.83 | ||||||||||||||||||
Thursday 09 | Friday 10 | Saturday 11 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:29 | - |
 |  | |  | | | | | | | | | |  |  | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - |
| Temp. °C | 26 | 25 | 24 | 23 | 26 | 28 | 26 | 25 | 25 | 24 | 22 | 21 | 24 | 23 | 21 | 21 | 22 | 20 | 19 | 19 | 20 | 20 | 20 | 20 |
| Feels °C (?) | 24 | 25 | 24 | 23 | 26 | 27 | 26 | 25 | 24 | 23 | 21 | 20 | 24 | 23 | 21 | 21 | 23 | 21 | 20 | 20 | 21 | 20 | 20 | 20 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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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