Surf Forecasts:
How big are the waves at Thermopylae today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 11ft (3.5m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 10ft (3.0m), 12s period with WSW swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.5m), 12s period with WSW swell.
The current surf forecast for Thermopylae at 6AM is: 3.5m 12s primary swell from a West-southwest direction and 1.3m 6s secondary swell from a North-northwest direction (forecast issued at 01:00am October 21). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 11ft (3.5m) | 12s |
| Afternoon (21 Oct) | 10ft (3.0m) | 12s |
| Evening (21 Oct) | 8ft (2.5m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Very mild (max 19°C on Fri afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the NNW on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2310 | 3128 | 3861 | 3349 | 2879 | 2343 | 1744 | 1420 | 1130 | 999 | 981 | 914 | 914 | 836 | 908 | 891 | 984 | 746 | 1447 | 1398 | 1175 | 957 | 814 | 617 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 11:56PM1.28m | 12:14PM1.46m | 00:40AM1.40m | 12:50PM1.58m | 1:16AM1.53m | 1:24PM1.70m | ||||||||||||||||||
Low Tide | 5:54AM0.73m | 6:35PM0.63m | 6:37AM0.62m | 7:09PM0.50m | 7:13AM0.52m | 7:42PM0.38m | ||||||||||||||||||
 | |  |  |  | | |  | |  |  | | | | | | |  |  | | | | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — |
mm | 2 | 2 | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 14 | 16 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 14 | 18 | 19 | 19 | 17 | 17 |
Feels °C | 7 | 9 | 9 | 13 | 15 | 14 | 15 | 15 | 13 | 14 | 13 | 12 | 13 | 13 | 13 | 12 | 13 | 12 | 13 | 16 | 16 | 16 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
| kJ | 2310 | 3128 | 3861 | 3349 | 2879 | 2343 | 1744 | 1420 | 1130 | 999 | 981 | 914 | 914 | 836 | 908 | 891 | 984 | 723 | 1447 | 1398 | 1175 | 957 | 814 | 617 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 15 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | SSW 13 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 |
| kJ | — | — | — | — | — | 4 | 231 | 396 | 459 | 467 | 448 | 448 | 394 | 335 | 329 | 277 | 220 | 746 | 128 | 96 | 92 | 65 | 61 | 58 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 13 | NW 13 | SW 16 | W 16 | W 16 | WSW 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 172 | 3 | 7 | 10 | 5 | 5 | 22 |
Wind waves Height (m) Direction Period (s) | NW 5 | NNW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 110 | 107 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 277 | 283 | 24 | 17 | 17 | 26 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 1 | 0 | 0 | 0 | 0 | 15 | 26 | 26 | 1 | 1 |
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