Surf Forecasts:
How big are the waves at Thermopylae today (17 Oct):
- Afternoon surf: Afternoon surf (17 Oct, local time) - 8ft (2.5m), 13s period with SW swell.
- Evening surf: Evening surf (17 Oct, local time) - 10ft (3.0m), 12s period with SW swell.
The current surf forecast for Thermopylae at 10PM is: 2.5m 12s primary swell from a Southwest direction and 0.9m 15s secondary swell from a West-southwest direction (forecast issued at 07:00pm October 17). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Oct) | - | - |
| Afternoon (17 Oct) | 8ft (2.5m) | 13s |
| Evening (17 Oct) | 10ft (3.0m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Mon afternoon, min 12°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Sat 17 | Sunday 18 | Monday 19 | |||||||||||||||||
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 12 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 2130 | 2160 | 2044 | 2672 | 2702 | 1990 | 2536 | 2445 | 2319 | 2166 | 1954 | 1789 | 1539 | 1422 | 1313 | 1130 | 1034 | 898 | 817 |
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 | cross | cross | cross | cross-on | cross | glassy | on | on | on | cross-on | glassy |
High Tide | 6:53PM1.25m | 8:04AM1.24m | 8:27PM1.16m | 10:02AM1.25m | 10:43PM1.18m | ||||||||||||||
Low Tide | 1:15AM0.80m | 2:30PM0.93m | 3:07AM0.86m | 4:48PM0.89m | |||||||||||||||
 |  | | | | | | |  |  |  | | |  | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 15 | 16 | 15 | 15 | 14 |
Feels °C | 10 | 9 | 9 | 9 | 8 | 9 | 8 | 9 | 8 | 8 | 10 | 10 | 11 | 12 | 12 | 13 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 |
| kJ | 2130 | 2160 | 2044 | 2672 | 2702 | 1990 | 2536 | 2445 | 2319 | 2166 | 1954 | 1789 | 1539 | 1422 | 1313 | 1130 | 1034 | 898 | 817 |
Swell 2 Height (m) Direction Period (s) | W 10 | — | WSW 15 | — | SSW 12 | SSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | — | 367 | — | 162 | 387 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 4 | — | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 26 | — | 635 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 27 | 63 | 1 | 1 | 1 | 115 | 2 | 27 | 27 | 27 | 8 | 1 | 1 | 0 | 17 | 17 | 17 | 17 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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