Surf Forecasts:
How big are the waves at Thermopylae today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 8ft (2.5m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 8ft (2.5m), 12s period with SW swell.
- Evening surf: Evening surf (19 Aug, local time) - 7.5ft (2.3m), 12s period with SW swell.
The current surf forecast for Thermopylae at 8AM is: 3.0m 12s primary swell from a Southwest direction (forecast issued at 01:00am August 19). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 8ft (2.5m) | 12s |
| Afternoon (19 Aug) | 8ft (2.5m) | 12s |
| Evening (19 Aug) | 7.5ft (2.3m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 11°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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 | 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 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SSW 11 | SSW 11 | SSW 10 | WSW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2495 | 2221 | 2185 | 1866 | 1742 | 1638 | 1550 | 1565 | 1818 | 2497 | 3334 | 3422 | 2884 | 2331 | 1999 | 1731 | 1627 | 1423 | 930 | 1046 | 561 | 485 | 450 | 385 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on |
High Tide | 7:19AM1.32m | 7:41PM1.38m | 8:14AM1.22m | 8:42PM1.27m | 9:53AM1.16m | 10:27PM1.21m | ||||||||||||||||||
Low Tide | 1:15AM0.65m | 1:14PM0.71m | 2:05AM0.76m | 2:09PM0.83m | 3:29AM0.83m | 3:59PM0.91m | ||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | | | | |  | | | |
 | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:20 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 13 | 13 | 12 | 12 | 11 | 15 | 16 | 17 | 14 | 13 |
Feels °C | 10 | 10 | 10 | 11 | 11 | 10 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 9 | 10 | 9 | 14 | 14 | 16 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SSW 11 | SSW 11 | SSW 10 | SSW 10 |
| kJ | 2495 | 2221 | 2185 | 1866 | 1742 | 1638 | 1550 | 1565 | 1818 | 2497 | 3334 | 3422 | 2884 | 2331 | 1999 | 1731 | 1627 | 1423 | 930 | 1046 | 561 | 485 | 450 | 385 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 11 | WSW 11 | WSW 11 | WSW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 435 | 379 | 372 | 366 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 5 | SSE 5 | SE 5 | SE 5 | SE 5 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 74 | 75 | 92 | 66 | 36 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 8 | 27 | 8 | 0 | 1 | 1 | 1 | 0 | 0 | 8 | 27 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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