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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 Monday 30 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
16.7° C
(Which is 2.1°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 6PM is: 0.8m 10s primary swell from a South direction and 0.7m 11s secondary swell from a West-southwest direction (forecast issued at 01:00pm March 30). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Mar) | 3.5ft (1.1m) | 10s |
| Afternoon (30 Mar) | 3ft (0.9m) | 10s |
| Evening (30 Mar) | 4.5ft (1.3m) | 9s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 30 | Tuesday 31 | Wednesday 01 | Thursday 02 | |||||||||||||||||||||
| 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 | 10 | 10 | 9 | 11 | 11 | 9 | 9 | 14 | 14 | 10 | 10 | 10 | 9 | 9 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 202 | 154 | 117 | 300 | 119 | 137 | 173 | 120 | 119 | 167 | 241 | 303 | 296 | 272 | 237 | 398 | 453 | 485 | 518 | 778 | 553 | 744 | 932 | 1112 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross- off | cross- off | glass | glass | on | on | cross- on | cross- off | cross | cross | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:13PM 1.64 | 2:25AM 1.79 | 2:46PM 1.70 | 2:57AM 1.84 | 3:16PM 1.74 | 3:27AM 1.86 | ||||||||||||||||||
Low Tide / height (m) | 8:10AM 0.43 | 8:17PM 0.45 | 8:44AM 0.36 | 8:49PM 0.40 | 9:13AM 0.33 | 9:17PM 0.38 | ||||||||||||||||||
Monday 30 | Tuesday 31 | Wednesday 01 | Thursday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 |
| Sunset | - | - | 6:44 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:42 | - | - | - | - | - |
 | | |  | | | | | | | | | |  | |  | |  | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | 22 | 22 | 21 | 20 | 19 | 18 | 18 | 19 | 21 | 22 | 20 | 19 | 19 | 19 | 19 | 20 |
| Feels °C (?) | 18 | 18 | 17 | 15 | 17 | 18 | 18 | 18 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 20 | 21 | 21 | 18 | 18 | 19 | 20 | 20 | 21 |
- Map Icons:
Break
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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