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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 pm Wednesday 01 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
16.8° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 11PM is: 1.3m 13s primary swell from a Southwest direction and 0.7m 8s secondary swell from a West-southwest direction (forecast issued at 07:00pm April 01). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Apr) | - | - |
| Afternoon (01 Apr) | 3.5ft (1.1m) | 14s |
| Evening (01 Apr) | 4.5ft (1.4m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 01 | Thursday 02 | Friday 03 | Saturday 04 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 518 | 778 | 553 | 821 | 796 | 1100 | 1077 | 1284 | 1206 | 1922 | 1659 | 1607 | 1387 | 1207 | 976 | 805 | 736 | 603 | 661 | 524 | 579 | 568 | 462 | 305 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | glass | glass | glass | glass | glass | glass | glass | cross- on | on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 3:16PM 1.74 | 3:27AM 1.86 | 3:45PM 1.74 | 3:55AM 1.84 | 4:13PM 1.72 | 4:22AM 1.79 | ||||||||||||||||||
Low Tide / height (m) | 9:17PM 0.38 | 9:40AM 0.32 | 9:44PM 0.38 | 10:06AM 0.34 | 10:10PM 0.41 | 10:31AM 0.38 | ||||||||||||||||||
Wednesday 01 | Thursday 02 | Friday 03 | Saturday 04 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 7:00 | - | - |
| Sunset | 6:42 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:38 | - | - | - | - | - | - | - |
 |  | |  |  |  | | | | |  | | |  | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | - | 4 | 4 | 2 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 20 | 20 | 20 | 20 | 22 | 23 | 25 | 24 | 23 | 23 | 21 | 20 | 18 | 19 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 18 | 19 |
| Feels °C (?) | 18 | 18 | 20 | 20 | 20 | 24 | 25 | 26 | 25 | 23 | 24 | 23 | 22 | 19 | 21 | 22 | 21 | 19 | 20 | 18 | 19 | 17 | 17 | 18 |
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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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