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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 Saturday 30 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
15.8° C
(Which is slightly cooler than normal)How big are the waves at Thermopylae today (30 May):
- Morning surf: Morning surf (30 May, local time) - 7ft (2.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 6ft (1.8m), 12s period with SW swell.
- Evening surf: Evening surf (30 May, local time) - 5ft (1.6m), 12s period with SW swell.
The current surf forecast for Thermopylae at 6AM is: 2.3m 13s primary swell from a Southwest direction (forecast issued at 01:00am May 30). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 7ft (2.1m) | 12s |
| Afternoon (30 May) | 6ft (1.8m) | 12s |
| Evening (30 May) | 5ft (1.6m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 20°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | WSW 13 | WSW 12 | WSW 12 | |
2063 | 1806 | 1497 | 1341 | 970 | 813 | 672 | 683 | 827 | 800 | 923 | 739 | 739 | 734 | 604 | 573 | 503 | 534 | 604 | 836 | 799 | 1548 | 1459 | 1291 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | on | glassy | cross | cross-off | glassy | glassy | off | glassy | glassy | glassy | on | on | |
High Tide | 2:30AM1.63m | 3:00PM1.56m | 3:02AM1.63m | 3:33PM1.58m | 3:33AM1.61m | 4:06PM1.58m | ||||||||||||||||||
Low Tide | 8:47AM0.44m | 8:54PM0.57m | 9:16AM0.43m | 9:27PM0.57m | 9:46AM0.43m | 10:00PM0.59m | ||||||||||||||||||
 | |  | | |  | | | | | | | | | | | | |  | | | |  | | |
 | — | 7:41 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 14 | 15 | 17 | 16 | 15 | 15 | 16 | 16 | 16 | 18 | 20 | 18 | 17 | 17 | 17 | 16 | 16 | 17 | 19 | 18 | 17 | 17 |
14 | 14 | 13 | 13 | 15 | 14 | 13 | 14 | 16 | 16 | 16 | 18 | 19 | 18 | 17 | 17 | 17 | 16 | 15 | 17 | 19 | 17 | 16 | 17 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | WSW 13 | WSW 12 | WSW 12 |
 kJ | 2063 | 1806 | 1497 | 1341 | 970 | 813 | 672 | 683 | 827 | 800 | 923 | 739 | 739 | 734 | 604 | 573 | 503 | 534 | 604 | 836 | 799 | 1548 | 1459 | 1291 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 5 | SSE 4 | — | W 12 | S 9 | NW 12 | NW 12 | W 10 | W 12 | WSW 14 | SSW 13 | S 13 | S 12 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 4 | 1 | — | 3 | 2 | 6 | 6 | 8 | 3 | 342 | 17 | 14 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 12 | NW 12 | SE 7 | W 12 | NW 12 | SSW 13 | — | — | NW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 2 | 3 | 6 | 34 | — | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 3 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | SSE 5 | SSE 5 | SE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 7 | 15 | 17 | 34 | 28 | 24 | 19 | 12 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 17 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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