Surf Forecasts:
How big are the waves at Thermopylae today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 6ft (1.8m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 5ft (1.6m), 12s period with WSW swell.
- Evening surf: Evening surf (11 Sep, local time) - 8ft (2.4m), 7s period with SSE swell.
The current surf forecast for Thermopylae at 2AM is: 1.9m 13s primary swell from a West-southwest direction (forecast issued at 07:00pm September 10). An open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 6ft (1.8m) | 12s |
| Afternoon (11 Sep) | 5ft (1.6m) | 12s |
| Evening (11 Sep) | 8ft (2.4m) | 7s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the SSE on Fri afternoon, light winds from the SE by Sun morning). | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||
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) | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSE 7 | SSE 7 | SW 14 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 1859 | 1673 | 1405 | 1207 | 1134 | 984 | 967 | 816 | 686 | 610 | 610 | 432 | 706 | 1253 | 1647 | 1371 | 3233 | 3039 | 2888 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:58PM1.86m | 3:17AM1.77m | 3:33PM1.89m | 3:51AM1.77m | 4:05PM1.88m | ||||||||||||||
Low Tide | 9:14PM0.25m | 9:22AM0.26m | 9:48PM0.24m | 9:53AM0.27m | 10:19PM0.26m | ||||||||||||||
 |  |  | | | | |  | | | | | | | | | | | | |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — |
 | 6:34 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 15 | 14 | 14 | 14 | 16 | 17 | 16 | 15 | 15 | 14 | 15 | 15 | 18 | 18 | 19 | 17 | 16 |
Feels °C | 14 | 14 | 11 | 10 | 10 | 11 | 12 | 13 | 12 | 11 | 12 | 11 | 13 | 12 | 14 | 15 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 14 | SW 14 | SW 15 | SW 14 | SW 16 | SW 16 | SW 16 |
| kJ | 1859 | 1673 | 1405 | 1207 | 1134 | 984 | 967 | 816 | 669 | 575 | 467 | 393 | 706 | 1253 | 1647 | 1067 | 3233 | 3039 | 2888 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SW 14 | WSW 12 | — | — | SW 17 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 34 | 76 | 248 | 193 | — | — | 1371 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSW 10 | SSW 10 | — | — | — | S 9 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 20 | 33 | — | — | — | 99 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 4 | S 6 | S 6 | S 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 |
| kJ | — | — | 46 | 170 | 335 | 377 | 444 | 527 | 686 | 610 | 610 | 432 | 443 | 310 | 356 | 352 | 645 | 716 | 532 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 27 | 63 | 115 | 13 | 13 | 1 | 1 | 405 | 405 | 13 | 13 | 1 | 1 | 1 | 1 | 1 | 1 | 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