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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 16 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 1.5°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 7AM is: 3.5m 15s primary swell from a Southwest direction (forecast issued at 01:00am April 16). The wind direction is predicted to be cross-offshore and the swell rating is 6.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Apr) | 11ft (3.5m) | 14s |
| Afternoon (16 Apr) | 10ft (3.0m) | 14s |
| Evening (16 Apr) | 8ft (2.5m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 16 | Friday 17 | Saturday 18 | ||||||||||||||||||||||
| 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) (?) | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8260 | 7523 | 6292 | 4955 | 4222 | 3752 | 3010 | 2417 | 2103 | 1819 | 1883 | 1655 | 1627 | 1842 | 1519 | 1475 | 1776 | 1388 | 2981 | 2889 | 2459 | 1874 | 1435 | 1223 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | on | cross- on | cross | cross- on | cross | cross- off | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 2:20AM 1.86 | 2:45PM 1.78 | 2:56AM 1.93 | 3:22PM 1.83 | 3:34AM 1.96 | 4:01PM 1.83 | ||||||||||||||||||
Low Tide / height (m) | 8:09PM 0.40 | 8:37AM 0.25 | 8:45PM 0.32 | 9:13AM 0.20 | 9:23PM 0.29 | 9:51AM 0.19 | ||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:20 | - |
 | | |  | | | | | |  |  |  |  |  | |  | | |  |  |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 10 | 10 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | - | 1 |
| Temp. °C | 17 | 16 | 16 | 15 | 17 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 17 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 16 | 17 | 17 | 16 |
| Feels °C (?) | 15 | 14 | 14 | 14 | 16 | 15 | 14 | 14 | 15 | 12 | 10 | 8 | 11 | 10 | 11 | 9 | 11 | 13 | 13 | 12 | 13 | 14 | 13 | 11 |
- 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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