Surf Forecasts:
How big are the waves at Thermopylae today (29 Jul):
- Afternoon surf: Afternoon surf (29 Jul, local time) - 6ft (1.8m), 13s period with SW swell.
- Evening surf: Evening surf (29 Jul, local time) - 6ft (1.8m), 13s period with SW swell.
The current surf forecast for Thermopylae at 10PM is: 1.8m 13s primary swell from a Southwest direction and 0.4m 6s secondary swell from a South-southeast direction, 1.0m 6s secondary swell from a Southeast direction (forecast issued at 07:00pm July 29). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Jul) | - | - |
| Afternoon (29 Jul) | 6ft (1.8m) | 13s |
| Evening (29 Jul) | 6ft (1.8m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Sat afternoon, min 15°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | |||||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 1099 | 1099 | 1083 | 976 | 891 | 809 | 809 | 732 | 669 | 609 | 553 | 545 | 581 | 486 | 416 | 367 | 355 | 259 | 250 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | off | off | glassy | cross | cross | glassy | off | off | off | off | cross-off | glassy | cross | glassy | off |
High Tide | 3:37PM1.64m | 3:42AM1.61m | 4:06PM1.69m | 4:13AM1.63m | 4:35PM1.72m | ||||||||||||||
Low Tide | 9:41PM0.49m | 9:49AM0.37m | 10:11PM0.45m | 10:18AM0.36m | 10:42PM0.42m | ||||||||||||||
 |  |  | |  | |  | | | | | | | | | | | | | |
 | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — |
 | 6:04 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 16 | 15 | 15 | 15 | 17 | 18 | 17 | 17 | 16 | 17 | 17 | 18 | 21 | 21 | 21 | 20 |
Feels °C | 14 | 15 | 15 | 14 | 13 | 13 | 13 | 15 | 16 | 15 | 15 | 13 | 14 | 14 | 15 | 18 | 18 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 |
| kJ | 1099 | 1099 | 1083 | 976 | 891 | 809 | 809 | 732 | 669 | 609 | 553 | 545 | 581 | 486 | 416 | 367 | 355 | 259 | 250 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | — | SSE 6 | SSE 6 | SSE 7 | SSE 8 | SE 8 | SE 6 | SSE 5 | SSE 5 | WSW 16 |
| kJ | 18 | 17 | 16 | 16 | 17 | 14 | 6 | 6 | 6 | — | 25 | 26 | 20 | 23 | 17 | 9 | 11 | 11 | 102 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 19 | W 19 | SW 18 | WSW 18 | WSW 18 | SW 16 | SSE 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 13 | 30 | 60 | 68 | 11 |
Wind waves Height (m) Direction Period (s) | — | SE 6 | SE 6 | — | — | — | — | SE 6 | SE 6 | SSE 6 | SE 6 | — | — | — | — | SE 7 | SE 7 | — | — |
| kJ | — | 46 | 76 | — | — | — | — | 26 | 31 | 12 | 96 | — | — | — | — | 54 | 48 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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