Surf Forecasts:
How big are the waves at Thermopylae today (25 Aug):
- Afternoon surf: Afternoon surf (25 Aug, local time) - 7ft (2.2m), 14s period with SW swell.
- Evening surf: Evening surf (25 Aug, local time) - 6.5ft (2.0m), 13s period with WSW swell.
The current surf forecast for Thermopylae at 11PM is: 1.8m 13s primary swell from a West-southwest direction and 0.9m 14s secondary swell from a South-southwest direction, 1.7m 6s secondary swell from a South-southeast direction (forecast issued at 07:00pm August 25). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | - | - |
| Afternoon (25 Aug) | 7ft (2.2m) | 14s |
| Evening (25 Aug) | 6.5ft (2.0m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | |||||||||||||||||
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 14 | SW 14 | WSW 13 | WSW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | S 11 | SSW 11 | SSW 11 | S 11 | SSW 11 | SSW 11 | S 11 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 1722 | 1547 | 1186 | 1045 | 1077 | 669 | 587 | 543 | 458 | 365 | 370 | 501 | 504 | 603 | 586 | 513 | 513 | 483 | 475 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | cross-off | glassy | cross-off | cross-on | cross-on | cross-on | on | glassy | glassy |
High Tide | 2:13PM1.53m | 2:20AM1.53m | 2:41PM1.63m | 2:51AM1.61m | 3:09PM1.72m | ||||||||||||||
Low Tide | 8:19PM0.57m | 8:27AM0.46m | 8:48PM0.47m | 8:55AM0.38m | 9:17PM0.38m | ||||||||||||||
 |  | | | | | | | | | | | | |  | | |  | | |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:23 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 16 | 14 | 13 | 12 | 13 | 17 | 22 | 23 | 23 | 22 | 20 | 19 | 18 | 19 | 19 | 18 | 16 | 15 |
Feels °C | 14 | 12 | 11 | 10 | 9 | 10 | 15 | 21 | 22 | 22 | 21 | 19 | 16 | 16 | 17 | 17 | 17 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 13 | WSW 13 | SW 13 | SSE 8 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SSW 11 | S 11 | SSW 11 | SSW 11 | S 11 | SSW 11 | SSW 11 | S 11 | S 11 |
| kJ | 1722 | 1547 | 1186 | 1045 | 1077 | 220 | 587 | 543 | 458 | 365 | 370 | 501 | 504 | 603 | 586 | 513 | 513 | 483 | 475 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 16 | WSW 13 | SSE 8 | SSE 8 | SSW 11 | SSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 |
| kJ | 144 | 85 | 294 | 154 | 99 | 669 | 170 | 149 | 268 | 314 | 359 | 328 | 274 | 250 | 246 | 237 | 180 | 180 | 173 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 16 | SSW 16 | SSW 11 | SSW 11 | SSW 11 | SSE 8 | SSE 8 | SSE 8 | SSW 15 | SSW 15 | W 18 | SE 8 | S 15 | WSW 16 | WSW 16 | SW 16 |
| kJ | — | — | — | 99 | 144 | 200 | 186 | 173 | 122 | 103 | 66 | 172 | 74 | 6 | 53 | 17 | 26 | 53 | 65 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SE 7 | SE 8 | SE 8 | SE 8 | — | — | — | — | — | — | NW 3 | WNW 3 | — | — |
| kJ | 194 | 204 | 218 | 273 | 273 | 550 | 432 | 364 | 316 | — | — | — | — | — | — | 2 | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 11 | 17 | 17 | 17 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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