Surf Forecasts:
How big are the waves at Thermopylae today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 5.5ft (1.7m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 6ft (1.8m), 13s period with WSW swell.
- Evening surf: Evening surf (15 Aug, local time) - 6.5ft (2.0m), 14s period with WSW swell.
The current surf forecast for Thermopylae at 6AM is: 1.7m 14s primary swell from a West-southwest direction and 0.8m 6s secondary swell from a West direction (forecast issued at 01:00am August 15). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 5.5ft (1.7m) | 14s |
| Afternoon (15 Aug) | 6ft (1.8m) | 13s |
| Evening (15 Aug) | 6.5ft (2.0m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 13°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||||||||||
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) | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1059 | 1075 | 1059 | 1043 | 1127 | 1398 | 1576 | 1553 | 1444 | 1401 | 1377 | 1423 | 1797 | 2228 | 2826 | 3267 | 3282 | 3066 | 2767 | 2528 | 2354 | 2026 | 2116 | 1960 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | glassy | cross-on | cross | cross | glassy | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 4:52AM1.72m | 5:11PM1.83m | 5:27AM1.65m | 5:47PM1.75m | 6:03AM1.55m | 6:22PM1.64m | ||||||||||||||||||
Low Tide | 10:56AM0.29m | 11:26PM0.34m | 11:29AM0.37m | 00:00AM0.43m | 12:02PM0.47m | |||||||||||||||||||
 |  |  |  | | | |  | | | | |  | | | | | | | | | | | | |
 | — | 7:26 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 14 | 16 | 16 | 16 | 15 | 15 | 14 | 13 | 15 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 |
Feels °C | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 15 | 13 | 12 | 10 | 12 | 13 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 16 | 15 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 1059 | 1075 | 1059 | 1043 | 1127 | 1398 | 1576 | 1553 | 1444 | 1401 | 1377 | 1423 | 1797 | 2228 | 2826 | 3267 | 3282 | 3066 | 2767 | 2528 | 2354 | 2026 | 2116 | 1960 |
Swell 2 Height (m) Direction Period (s) | WNW 6 | W 6 | W 6 | W 7 | WSW 8 | WSW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 16 | — | — |
| kJ | 43 | 43 | 48 | 77 | 112 | 57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 208 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 65 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NW 3 | NNW 3 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 11 | 11 | 6 | 11 | 24 | 17 | 11 | 6 | 0 | 6 | 6 | 11 | 17 | 1 | 1 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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