Surf Forecasts:
How big are the waves at Thermopylae today (09 Sep):
- Morning surf: Morning surf (09 Sep, local time) - 3ft (0.9m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (09 Sep, local time) - 3ft (0.9m), 13s period with WSW swell.
- Evening surf: Evening surf (09 Sep, local time) - 4ft (1.2m), 12s period with SW swell.
The current surf forecast for Thermopylae at 9PM is: 1.2m 12s primary swell from a Southwest direction and 0.3m 8s secondary swell from a South-southeast direction (forecast issued at 01:00pm September 09). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Sep) | 3ft (0.9m) | 13s |
| Afternoon (09 Sep) | 3ft (0.9m) | 13s |
| Evening (09 Sep) | 4ft (1.2m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 14°C on Wed night). Mainly fresh winds. | |||||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | |||||||||||||||||||
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) | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | SW 16 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSE 7 | SSE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 304 | 299 | 346 | 417 | 637 | 680 | 1027 | 1349 | 2457 | 2250 | 1647 | 1528 | 1405 | 1321 | 1134 | 984 | 830 | 734 | 740 | 655 | 610 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:21PM1.78m | 2:41AM1.72m | 2:58PM1.86m | 3:17AM1.77m | 3:33PM1.89m | ||||||||||||||||
Low Tide | 8:11AM0.37m | 8:38PM0.31m | 8:48AM0.30m | 9:14PM0.25m | 9:22AM0.26m | 9:48PM0.24m | |||||||||||||||
 | | |  | | |  |  | | | |  | | | | |  | | | | | |
 | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — |
 | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 17 | 15 | 15 | 14 | 14 | 14 | 16 | 17 | 16 | 15 | 14 | 14 | 14 | 14 | 16 | 19 | 17 | 15 | 15 |
Feels °C | 18 | 18 | 14 | 13 | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 12 | 10 | 10 | 11 | 11 | 13 | 16 | 13 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | WSW 12 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 |
| kJ | 304 | 299 | 346 | 417 | 637 | 680 | 658 | 1349 | 2457 | 2250 | 1647 | 1528 | 1405 | 1321 | 1134 | 984 | 830 | 734 | 605 | 491 | 467 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | W 11 | SE 10 | SSE 8 | — | SW 17 | SW 16 | SW 12 | — | — | — | — | — | — | — | SSW 7 | SSW 7 | — | — | SW 15 | SW 15 |
| kJ | 15 | 21 | 4 | 13 | — | 346 | 1027 | 683 | — | — | — | — | — | — | — | 136 | 144 | — | — | 77 | 76 |
Swell 3 Height (m) Direction Period (s) | W 11 | S 8 | S 10 | — | — | SSE 9 | SSE 9 | — | — | — | — | — | — | — | — | — | — | — | — | SW 10 | SSW 10 |
| kJ | 21 | 4 | 8 | — | — | 7 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | 28 | 21 |
Wind waves Height (m) Direction Period (s) | SSE 3 | S 3 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | S 4 | — | — | — | SSE 3 | S 4 | S 5 | S 6 | S 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 3 | 5 | 13 | 16 | 16 | 15 | 10 | — | — | — | 6 | 18 | 86 | 200 | 220 | 225 | 297 | 539 | 740 | 655 | 610 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 27 | 27 | 8 | 0 | 1 | 0 | 0 | 8 | 27 | 27 | 63 | 115 | 13 | 1 | 1 | 1 | 662 | 405 | 13 | 1 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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