Surf Forecasts:
How big are the waves at Thermopylae today (25 Sep):
- Morning surf: Morning surf (25 Sep, local time) - 5.5ft (1.7m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (25 Sep, local time) - 5ft (1.6m), 12s period with SW swell.
- Evening surf: Evening surf (25 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
The current surf forecast for Thermopylae at 5PM is: 1.5m 12s primary swell from a Southwest direction and 0.1m 20s secondary swell from a Southwest direction (forecast issued at 01:00pm September 25). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Sep) | 5.5ft (1.7m) | 12s |
| Afternoon (25 Sep) | 5ft (1.6m) | 12s |
| Evening (25 Sep) | 5ft (1.5m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Sat morning. Very mild (max 18°C on Fri afternoon, min 11°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the SSE by Sun afternoon). | |||||||||||||||||||||
Fri 25 | Saturday 26 | Sunday 27 | |||||||||||||||||||
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 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SSW 14 | SSW 14 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 822 | 747 | 614 | 604 | 551 | 498 | 875 | 1958 | 2208 | 2010 | 1972 | 1836 | 1712 | 2158 | 1948 | 1110 | 2379 | 2745 | 1045 | 784 | 734 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:34PM1.78m | 2:53AM1.72m | 3:03PM1.85m | 3:24AM1.77m | 3:35PM1.89m | ||||||||||||||||
Low Tide | 8:23AM0.39m | 8:46PM0.30m | 8:53AM0.32m | 9:16PM0.24m | 9:23AM0.29m | 9:48PM0.21m | |||||||||||||||
 | |  |  | |  | |  |  |  | |  | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | 1 | 2 | 5 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 16 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 13 |
Feels °C | 16 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 15 | 13 | 12 | 10 | 9 | 9 | 8 | 9 | 7 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 822 | 747 | 614 | 604 | 551 | 448 | 505 | 1958 | 2208 | 2010 | 1972 | 1836 | 1712 | 2158 | 1948 | 1110 | 1968 | 2006 | 1045 | 784 | 734 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | SW 20 | SW 18 | SW 18 | SW 16 | SW 16 | ESE 7 | S 8 | S 11 | S 11 | S 11 | — | — | — | — | — | — | — | SSW 8 | SSW 8 |
| kJ | 16 | 17 | 15 | 112 | 82 | 498 | 875 | 5 | 12 | 3 | 2 | 2 | — | — | — | — | — | — | — | 87 | 110 |
Swell 3 Height (m) Direction Period (s) | W 16 | W 16 | SW 20 | SE 7 | S 9 | SSE 9 | ESE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 5 | 15 | 8 | 15 | 43 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | S 10 | — | — | — | — | S 4 | S 6 | S 6 | SSE 6 | — | S 6 | SSW 14 | SSW 14 | SSE 6 | SSE 7 | SSE 7 |
| kJ | — | — | — | — | — | 47 | — | — | — | — | 14 | 82 | 106 | 55 | — | 255 | 2379 | 2745 | 386 | 398 | 420 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 139 | 138 | 63 | 63 | 344 | 344 | 344 | 346 | 344 | 344 | 13 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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