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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 am Friday 08 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
16.6° C
(Which is slightly cooler than normal)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 10AM is: 1.8m 16s primary swell from a West-southwest direction and 1.1m 10s secondary swell from a South-southeast direction (forecast issued at 07:00am May 08). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 5.5ft (1.7m) | 16s |
| Afternoon (08 May) | 6.5ft (2.0m) | 16s |
| Evening (08 May) | 6ft (1.9m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 38mm), heaviest during Sat night. Very mild (max 18°C on Fri afternoon, min 12°C on Sun morning). Winds increasing (calm on Fri morning, gales from the NNW by Sun night). | ||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 | W 9 | W 9 | W 8 | W 9 | WSW 10 | WSW 11 | SW 12 | WNW 12 | |
1056 | 1261 | 1948 | 1875 | 1689 | 1475 | 1435 | 1301 | 1143 | 985 | 530 | 883 | 700 | 599 | 590 | 509 | 1159 | 1185 | 1648 | 3034 | 5242 | 6273 | 3679 | 4128 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | cross-on | cross | cross-off | glassy | glassy | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | on | on | on | on | on | on | cross | |
High Tide | 6:50AM1.31m | 7:44PM1.36m | 8:02AM1.25m | 9:00PM1.35m | 9:37AM1.24m | 10:19PM1.41m | ||||||||||||||||||
Low Tide | 1:06PM0.73m | 2:07AM0.84m | 2:21PM0.78m | 3:42AM0.81m | 3:50PM0.78m | |||||||||||||||||||
 |  | | | | | | | | | |  |  |  | |  |  |  | | | |  | | | |
 | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | 7:28 |
 | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:57 | — | — | 5:57 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 6 | 4 | 4 | 2 | 2 | 2 | 1 | 1 | |
Temp °C | 15 | 14 | 16 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 16 | 17 | 16 | 15 | 15 | 13 | 14 | 12 | 13 | 14 | 14 | 13 | 15 | 14 |
14 | 12 | 15 | 16 | 14 | 14 | 15 | 14 | 12 | 11 | 12 | 12 | 10 | 9 | 7 | 9 | 9 | 3 | 3 | 3 | 4 | 4 | 8 | 6 | |
Swell 1 Height (m) Direction Period (s) | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 8 | SW 13 | SW 13 | SE 11 | SE 11 | SE 11 | SSE 11 | SW 12 | SW 12 |
 kJ | 1056 | 1261 | 1948 | 1875 | 1689 | 1475 | 1435 | 1301 | 1143 | 985 | 530 | 883 | 700 | 599 | 590 | 381 | 613 | 594 | 33 | 31 | 19 | 12 | 3679 | 2798 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | S 9 | SSE 9 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SW 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | NNW 6 | SSE 12 | SE 12 | — | — | S 15 | S 15 | SSE 11 | SE 11 |
| kJ | 385 | 282 | 225 | 125 | 132 | 568 | 392 | 376 | 293 | 273 | 404 | 195 | 145 | 101 | 98 | 126 | 55 | 34 | — | — | 4 | 4 | 12 | 5 |
Swell 3 Height (m) Direction Period (s) | WSW 13 | WSW 13 | SSE 18 | SE 12 | SE 12 | SSE 16 | SE 15 | SSE 15 | SE 15 | SSE 14 | SSE 13 | SW 14 | — | — | — | SW 13 | — | — | — | — | — | SW 22 | S 14 | S 14 |
| kJ | 378 | 378 | 62 | 74 | 37 | 169 | 229 | 142 | 217 | 168 | 201 | 398 | — | — | — | 509 | — | — | — | — | — | 18 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 12 | — | — | — | — | — | — | NNW 3 | NW 4 | NW 5 | NW 6 | — | W 9 | W 9 | W 8 | W 9 | WSW 10 | WSW 11 | WNW 11 | WNW 12 |
| kJ | — | — | — | — | 715 | — | — | — | — | — | — | 6 | 33 | 115 | 354 | — | 1159 | 1185 | 1648 | 3034 | 5242 | 6273 | 2785 | 4128 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 11 | 6 | 24 | 17 | 83 | 74 | 74 | 67 | 26 | 804 | 891 | 1028 | 1050 | 459 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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