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 5AM is: 1.8m 12s primary swell from a Southwest direction and 0.7m 7s secondary swell from a South-southeast direction (forecast issued at 01:00am September 25). The wind direction is predicted to be glassy and the swell rating is 4.
| 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 ForecastLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 19°C on Fri morning, min 11°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the SSE by Sun afternoon). | ||||||||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | ||||||||||||||||||||||
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) | SSW 13 | SW 12 | SW 12 | 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 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1126 | 964 | 850 | 822 | 747 | 614 | 604 | 551 | 498 | 875 | 1958 | 2208 | 2010 | 1972 | 1736 | 1712 | 1531 | 1272 | 1126 | 1159 | 1126 | 888 | 784 | 734 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | glassy | glassy | glassy | cross-on | 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 | cross-off |
High Tide | 2:22AM1.64m | 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 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 19 | 17 | 19 | 17 | 17 | 17 | 16 | 16 | 18 | 18 | 17 | 16 | 15 | 14 | 14 | 13 | 15 | 16 | 15 | 14 | 13 |
Feels °C | 15 | 16 | 15 | 20 | 17 | 20 | 17 | 16 | 17 | 15 | 15 | 17 | 15 | 13 | 13 | 11 | 10 | 9 | 7 | 9 | 10 | 8 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SW 12 | SW 12 | 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 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 1126 | 964 | 850 | 822 | 747 | 614 | 604 | 551 | 448 | 505 | 1958 | 2208 | 2010 | 1972 | 1736 | 1712 | 1531 | 1272 | 1126 | 1159 | 1126 | 888 | 784 | 734 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | 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 |
| kJ | 57 | 38 | 29 | 16 | 17 | 15 | 112 | 82 | 498 | 875 | 5 | 12 | 3 | 2 | 2 | — | — | — | — | — | — | — | — | 146 |
Swell 3 Height (m) Direction Period (s) | — | W 16 | W 16 | W 16 | W 16 | SW 20 | SE 7 | S 9 | SSE 10 | ESE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 5 | 5 | 5 | 5 | 15 | 13 | 15 | 31 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSE 3 | SSE 8 | — | S 4 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 4 | 47 | — | 19 | 145 | 194 | 163 | 164 | 299 | 385 | 408 | 402 | 420 | 444 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 0 | 8 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 8 | 27 | 138 | 63 | 63 | 63 | 232 | 232 | 177 | 423 | 344 | 115 | 13 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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