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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 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 11PM is: 1.9m 14s primary swell from a West-southwest direction and 0.9m 15s secondary swell from a South-southeast direction (forecast issued at 07:00pm 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) | - | - |
| 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 65mm), heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 12°C on Sat night). Winds increasing (calm on Fri night, gales from the NW by Mon morning). | ||||||||||||||||||||||||
Fri 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WNW 7 | WSW 9 | WSW 13 | WSW 12 | WSW 8 | WSW 10 | WSW 11 | WSW 11 | WSW 12 | W 11 | WNW 11 | W 12 | W 13 | |
1689 | 1475 | 1435 | 1301 | 1143 | 985 | 551 | 883 | 700 | 599 | 590 | 509 | 757 | 2377 | 2471 | 1984 | 4045 | 5824 | 6444 | 6316 | 7522 | 11115 | 13319 | 12603 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | glassy | cross | cross | cross | cross-on | cross | cross | cross | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:44PM1.36m | 8:02AM1.25m | 9:00PM1.35m | 9:37AM1.24m | 10:19PM1.41m | 11:02AM1.30m | ||||||||||||||||||
Low Tide | 2:07AM0.84m | 2:21PM0.78m | 3:42AM0.81m | 3:50PM0.78m | 5:00AM0.72m | |||||||||||||||||||
 |  | | | | | |  | |  |  |  |  |  |  |  | |  | | | | |  |  | |
 | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — |
 | 5:59 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | 5:57 |
— | — | — | — | — | — | — | — | — | — | — | 13 | 8 | 3 | 3 | 2 | 1 | 3 | 1 | 1 | 1 | 4 | 8 | 14 | |
Temp °C | 17 | 16 | 16 | 15 | 15 | 14 | 16 | 17 | 16 | 15 | 15 | 12 | 13 | 14 | 13 | 13 | 14 | 12 | 15 | 14 | 15 | 15 | 16 | 18 |
14 | 14 | 15 | 15 | 14 | 12 | 12 | 12 | 11 | 9 | 7 | 7 | 9 | 8 | 5 | 2 | 4 | 4 | 7 | 5 | 4 | 2 | 6 | 12 | |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 | WSW 9 | SSE 12 | SE 11 | SE 11 | SE 11 | SSE 11 | SSE 11 | SE 11 | SE 14 | SE 11 | SE 13 | SE 13 |
 kJ | 1689 | 1475 | 1435 | 1301 | 1143 | 985 | 551 | 883 | 700 | 599 | 590 | 509 | 757 | 53 | 33 | 31 | 19 | 12 | 12 | 5 | 7 | 18 | 27 | 27 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SW 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SW 13 | — | — | SW 22 | S 15 | S 15 | S 15 | S 14 | SE 11 | SSE 13 | — | — |
| kJ | 132 | 534 | 392 | 305 | 293 | 273 | 404 | 195 | 145 | 101 | 96 | 56 | 501 | — | — | 19 | 4 | 4 | 4 | 4 | 5 | 18 | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | SSE 16 | SE 15 | SSE 15 | SE 15 | SSE 14 | SSE 13 | SW 14 | — | W 11 | — | W 11 | NW 7 | — | — | — | — | SW 22 | — | — | SSE 14 | — | — | — |
| kJ | 37 | 169 | 229 | 142 | 217 | 168 | 201 | 459 | — | 2 | — | 2 | 118 | — | — | — | — | 18 | — | — | 18 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 3 | NW 4 | NW 5 | NNW 6 | WNW 7 | — | WSW 13 | WSW 12 | WSW 8 | WSW 10 | WSW 11 | WSW 11 | WSW 12 | W 11 | WNW 11 | W 12 | W 13 |
| kJ | — | — | — | — | — | — | — | 4 | 25 | 99 | 248 | 493 | — | 2377 | 2471 | 1984 | 4045 | 5824 | 6444 | 6316 | 7522 | 11115 | 13319 | 12603 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 11 | 6 | 31 | 83 | 405 | 74 | 121 | 83 | 26 | 26 | 463 | 463 | 949 | 463 | 463 | 463 | 366 | 1045 | 1008 | 997 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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