- Forecast
- Maps
- Live
- Weather State
- Spot Information
Thermopylae Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Thermopylae surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 pm Saturday 09 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
16.3° 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 6PM is: 1.4m 14s primary swell from a West-southwest direction and 0.7m 13s secondary swell from a South-southeast direction, 0.9m 4s secondary swell from a North-northwest direction (forecast issued at 01:00pm May 09). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 5ft (1.5m) | 14s |
| Afternoon (09 May) | 5ft (1.5m) | 14s |
| Evening (09 May) | 4.5ft (1.3m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 62mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 12°C on Sun morning). Winds decreasing (gales from the NW on Mon morning, light winds from the W by Mon night). | ||||||||||||||||||||||||
Sat 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | SW 13 | W 8 | W 8 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | WSW 12 | W 12 | WNW 10 | W 12 | W 13 | W 13 | W 13 | W 13 | WSW 13 | W 12 | W 12 | |
551 | 883 | 700 | 680 | 590 | 581 | 512 | 880 | 1123 | 1983 | 4752 | 6902 | 6683 | 6566 | 6466 | 7737 | 15563 | 19677 | 17528 | 14120 | 11185 | 8224 | 5260 | 5160 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross | cross | cross-on | on | on | on | on | on | on | on | cross-on | cross | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | |
High Tide | 8:02AM1.25m | 9:00PM1.35m | 9:37AM1.24m | 10:19PM1.41m | 11:02AM1.30m | 11:24PM1.50m | ||||||||||||||||||
Low Tide | 2:21PM0.78m | 3:42AM0.81m | 3:50PM0.78m | 5:00AM0.72m | 5:04PM0.72m | 5:56AM0.60m | ||||||||||||||||||
 |  |  |  | |  |  |  |  | | |  | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — |
 | — | — | 5:58 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | 5:55 |
— | — | — | — | — | 5 | 6 | 2 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 8 | 6 | 6 | 4 | 2 | 1 | 2 | 5 | 1 | |
Temp °C | 16 | 17 | 16 | 15 | 15 | 14 | 14 | 15 | 12 | 14 | 13 | 14 | 14 | 14 | 14 | 15 | 17 | 18 | 18 | 18 | 18 | 17 | 16 | 17 |
12 | 12 | 11 | 9 | 8 | 7 | 8 | 8 | 3 | 4 | 2 | 4 | 6 | 7 | 5 | 3 | 5 | 9 | 10 | 11 | 12 | 14 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | SW 13 | WSW 13 | SW 13 | SE 11 | SE 11 | SSE 11 | SE 11 | WSW 12 | W 12 | SE 13 | SSE 10 | SSE 9 | SE 13 | NNW 10 | SE 12 | WSW 13 | SW 13 | W 12 |
 kJ | 551 | 883 | 700 | 680 | 590 | 581 | 501 | 555 | 778 | 31 | 31 | 12 | 5 | 6566 | 6466 | 7 | 18 | 17 | 25 | 567 | 24 | 8224 | 2949 | 4402 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SE 12 | SSE 12 | SSE 12 | SE 11 | SW 22 | — | SW 22 | SE 14 | SE 11 | SE 14 | SE 11 | SE 13 | SE 13 | — | SE 12 | — | — | — | SW 13 |
| kJ | 404 | 195 | 145 | 101 | 96 | 69 | 55 | 53 | 33 | 19 | — | 18 | 8 | 5 | 7 | 19 | 27 | 26 | — | 25 | — | — | — | 2561 |
Swell 3 Height (m) Direction Period (s) | SSE 13 | SW 14 | W 11 | W 11 | — | — | — | — | — | — | — | SW 22 | — | SE 14 | SE 11 | SSE 13 | — | — | — | — | — | — | — | NW 9 |
| kJ | 201 | 459 | 2 | 2 | — | — | — | — | — | — | — | 18 | — | 8 | 4 | 18 | — | — | — | — | — | — | — | 272 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | NW 4 | NNW 5 | NNW 5 | NW 7 | WNW 7 | W 8 | W 8 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | — | NW 7 | WNW 10 | W 12 | W 13 | W 13 | W 13 | W 13 | NW 10 | W 12 | W 12 |
| kJ | — | 5 | 21 | 68 | 157 | 469 | 512 | 880 | 1123 | 1983 | 4752 | 6902 | 6683 | — | 658 | 7737 | 15563 | 19677 | 17528 | 14120 | 11185 | 612 | 5260 | 5160 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 31 | 24 | 24 | 74 | 74 | 99 | 344 | 383 | 844 | 423 | 423 | 603 | 949 | 949 | 366 | 366 | 949 | 1008 | 997 | 1019 | 603 | 26 | 26 | 24 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thermopylae surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest