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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 Friday 22 May 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
16.0° C
(Which is 1.0°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: 0.8m 18s primary swell from a Southwest direction and 0.7m 11s secondary swell from a Southwest direction (forecast issued at 01:00am May 22). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 2.5ft (0.8m) | 17s |
| Afternoon (22 May) | 3.5ft (1.0m) | 16s |
| Evening (22 May) | 4.5ft (1.3m) | 15s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 15°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | |
314 | 311 | 366 | 443 | 498 | 492 | 763 | 685 | 667 | 716 | 569 | 480 | 519 | 350 | 821 | 752 | 938 | 859 | 711 | 701 | 632 | 639 | 1626 | 1886 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | glassy | glassy | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | |
High Tide | 7:40AM1.40m | 8:24PM1.51m | 9:00AM1.32m | 9:41PM1.48m | 10:25AM1.31m | 10:53PM1.50m | ||||||||||||||||||
Low Tide | 1:42AM0.65m | 1:58PM0.64m | 3:06AM0.69m | 3:16PM0.70m | 4:28AM0.67m | 4:33PM0.71m | ||||||||||||||||||
 |  |  |  | |  |  | | | | | | | | | | | | | | | | | | |
 | — | 7:35 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:49 | — | — | — | — | — | — | — | 5:49 | — | — | — | — | — | — | — | 5:47 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 17 | 19 | 19 | 17 | 17 | 16 | 16 | 16 | 17 | 19 | 18 | 17 | 16 |
15 | 14 | 15 | 15 | 17 | 15 | 15 | 15 | 14 | 16 | 16 | 16 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 15 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 9 | SW 13 | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 |
 kJ | 126 | 311 | 366 | 443 | 498 | 492 | 763 | 685 | 667 | 716 | 569 | 225 | 519 | 255 | 821 | 752 | 938 | 859 | 711 | 701 | 632 | 639 | 1626 | 1886 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 11 | SW 11 | SW 11 | SW 10 | SSW 6 | SSW 6 | S 6 | S 6 | SSW 6 | SSW 9 | SW 13 | SW 9 | SW 8 | SW 8 | SW 8 | SE 13 | SE 13 | SW 17 | SW 17 | SW 16 | SW 16 | SSE 11 | SSE 11 |
| kJ | 314 | 121 | 119 | 115 | 112 | 33 | 34 | 32 | 24 | 25 | 168 | 480 | 186 | 107 | 107 | 107 | 7 | 6 | 227 | 230 | 314 | 496 | 13 | 12 |
Swell 3 Height (m) Direction Period (s) | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 11 | S 10 | S 10 | S 9 | SW 6 | SSE 6 | SW 16 | SSE 6 | SW 14 | SE 14 | SE 13 | W 11 | W 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | — | — |
| kJ | 21 | 13 | 11 | 18 | 24 | 117 | 7 | 7 | 7 | 15 | 13 | 94 | 3 | 350 | 7 | 7 | 2 | 2 | 15 | 14 | 14 | 14 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 6 | — | SSE 6 | SE 5 | SSE 5 | SE 5 | SSE 5 | SE 5 | — | SSE 3 | SSE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 6 | 7 | 3 | 4 | 3 | 4 | — | 3 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 6 | 6 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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