Surf Forecasts:
How big are the waves at Thermopylae today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 7ft (2.2m), 13s period with S swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 5ft (1.5m), 12s period with SSW swell.
- Evening surf: Evening surf (11 Aug, local time) - 3.5ft (1.1m), 23s period with SW swell.
The current surf forecast for Thermopylae at 4AM is: 2.5m 13s primary swell from a South direction and 0.5m 11s secondary swell from a West-southwest direction, 1.8m 7s secondary swell from a Southeast direction (forecast issued at 01:00am August 11). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | 7ft (2.2m) | 13s |
| Afternoon (11 Aug) | 5ft (1.5m) | 12s |
| Evening (11 Aug) | 3.5ft (1.1m) | 23s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Thu afternoon, min 11°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||||||||
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) | S 13 | S 13 | SSW 13 | S 12 | SSW 12 | SSW 12 | WSW 23 | SW 22 | SW 21 | SW 20 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 16 | SW 17 | SW 17 | SW 16 | WSW 16 | WSW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3337 | 2187 | 1780 | 1292 | 725 | 483 | 947 | 1414 | 1850 | 1922 | 2184 | 2223 | 1839 | 2238 | 2293 | 2037 | 1916 | 1985 | 1977 | 3307 | 3039 | 2379 | 2075 | 2049 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-on | cross-off | cross-off |
High Tide | 2:07AM1.66m | 2:36PM1.73m | 2:54AM1.73m | 3:18PM1.83m | 3:36AM1.77m | 3:58PM1.88m | ||||||||||||||||||
Low Tide | 8:24AM0.35m | 8:50PM0.36m | 9:06AM0.27m | 9:33PM0.28m | 9:45AM0.24m | 10:13PM0.26m | ||||||||||||||||||
 | |  | | | | | | | | | | | |  | |  | |  | | | | | | |
 | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 11 | 11 | 12 | 16 | 17 | 16 | 15 | 14 | 14 | 14 | 16 | 20 | 21 | 20 | 21 | 21 | 20 | 19 | 21 | 25 | 22 | 20 | 19 |
Feels °C | 8 | 8 | 8 | 9 | 14 | 14 | 13 | 12 | 10 | 10 | 10 | 12 | 18 | 18 | 16 | 17 | 17 | 16 | 15 | 17 | 19 | 20 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | SSW 13 | S 12 | SSW 12 | SSW 12 | SSW 11 | SSE 9 | SW 21 | SW 20 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 16 | SW 17 | SW 17 | SW 16 | WSW 16 | WSW 16 |
| kJ | 2468 | 2187 | 1780 | 1292 | 725 | 483 | 335 | 267 | 1850 | 1922 | 2184 | 2223 | 1839 | 2238 | 2293 | 2037 | 1916 | 1953 | 1977 | 3307 | 3039 | 2379 | 2075 | 2049 |
Swell 2 Height (m) Direction Period (s) | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 24 | WSW 23 | SW 22 | SSE 9 | SSE 9 | SE 9 | SSE 9 | S 10 | SSE 8 | S 10 | SW 22 | SW 21 | SW 19 | SW 19 | SE 11 | SE 11 | N 6 | SE 10 | SE 10 |
| kJ | 76 | 66 | 45 | 20 | 40 | 381 | 947 | 1414 | 202 | 161 | 110 | 103 | 162 | 37 | 8 | 558 | 1418 | 1985 | 1059 | 224 | 168 | 20 | 102 | 82 |
Swell 3 Height (m) Direction Period (s) | — | — | W 27 | SW 26 | SW 25 | WSW 10 | — | SW 11 | SSW 11 | SW 11 | SW 11 | SW 10 | — | SW 10 | — | S 10 | S 10 | SE 11 | SE 7 | — | — | NNW 6 | N 6 | — |
| kJ | — | — | 14 | 27 | 162 | 20 | — | 278 | 211 | 172 | 140 | 87 | — | 65 | — | 8 | 8 | 92 | 36 | — | — | 14 | 19 | — |
Wind waves Height (m) Direction Period (s) | S 13 | SE 7 | SE 7 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 11 | — | — | SE 11 | — | — |
| kJ | 3337 | 316 | 363 | 489 | 158 | 300 | 394 | 634 | 542 | 443 | 393 | 313 | 250 | 224 | 57 | 67 | 69 | 400 | 292 | — | — | 112 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 28 | 1 | 0 | 0 |
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)
Latest Updates
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