Surf Forecasts:
How big are the waves at Thermopylae today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 7ft (2.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 6ft (1.9m), 11s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 5ft (1.6m), 11s period with SW swell.
The current surf forecast for Thermopylae at 9PM is: 1.6m 11s primary swell from a Southwest direction and 1.3m 11s secondary swell from a West-southwest direction (forecast issued at 01:00pm August 31). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 7ft (2.1m) | 12s |
| Afternoon (31 Aug) | 6ft (1.9m) | 11s |
| Evening (31 Aug) | 5ft (1.6m) | 11s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 16°C on Wed afternoon, min 11°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||
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) | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1019 | 927 | 875 | 615 | 1141 | 1422 | 1702 | 2270 | 2639 | 3066 | 3567 | 3890 | 3949 | 3844 | 3866 | 3609 | 3299 | 2837 | 2795 | 2490 | 2207 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | glassy |
High Tide | 5:08PM1.81m | 5:28AM1.64m | 5:44PM1.74m | 6:07AM1.55m | 6:26PM1.64m | ||||||||||||||||
Low Tide | 10:52AM0.33m | 11:21PM0.34m | 11:26AM0.40m | 11:59PM0.41m | 12:04PM0.49m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | |  | |
 | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — |
 | — | — | 6:27 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 14 | 13 | 12 | 12 | 12 | 12 | 11 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 15 | 16 | 16 | 15 | 14 |
Feels °C | 8 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 12 | 13 | 11 | 12 | 12 | 12 | 11 | 12 | 14 | 13 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 1019 | 927 | 875 | 615 | 1141 | 1422 | 1702 | 2270 | 2639 | 3066 | 3567 | 3890 | 3949 | 3844 | 3866 | 3609 | 3299 | 2837 | 2795 | 2490 | 2207 |
Swell 2 Height (m) Direction Period (s) | — | — | SE 10 | WSW 11 | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 379 | 494 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 89 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 26 | 1 | 0 | 0 | 0 | 0 | 1 | 27 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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