Surf Forecasts:
How big are the waves at Thermopylae today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 6ft (1.9m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 6ft (1.8m), 11s period with SW swell.
- Evening surf: Evening surf (17 Jul, local time) - 5ft (1.6m), 10s period with SW swell.
The current surf forecast for Thermopylae at 4PM is: 1.7m 10s primary swell from a Southwest direction and 0.2m 14s secondary swell from a South direction (forecast issued at 07:00am July 17). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 6ft (1.9m) | 11s |
| Afternoon (17 Jul) | 6ft (1.8m) | 11s |
| Evening (17 Jul) | 5ft (1.6m) | 10s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||||||
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 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 9 | SW 9 | SW 9 | SW 9 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1111 | 850 | 773 | 703 | 599 | 465 | 456 | 377 | 172 | 247 | 237 | 250 | 346 | 799 | 730 | 574 | 565 | 555 | 603 | 638 | 564 | 505 | 638 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | cross-on | cross | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | on | cross | cross-off | cross-off |
High Tide | 5:16AM1.69m | 5:42PM1.80m | 5:59AM1.60m | 6:25PM1.72m | 6:43AM1.50m | 7:08PM1.63m | |||||||||||||||||
Low Tide | 11:25AM0.32m | 00:00AM0.40m | 12:05PM0.39m | 00:45AM0.48m | 12:46PM0.49m | ||||||||||||||||||
 |  |  | | | | | |  | | | |  |  | | | | | | | | | | |
 | 7:48 | — | — | — | — | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:47 | — | — | — | — | — | — |
 | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 16 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 14 |
Feels °C | 15 | 15 | 17 | 17 | 17 | 16 | 16 | 17 | 15 | 15 | 16 | 16 | 15 | 16 | 14 | 14 | 13 | 13 | 14 | 14 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 |
| kJ | 1111 | 850 | 773 | 703 | 599 | 465 | 456 | 377 | 172 | 247 | 237 | 241 | 230 | 799 | 730 | 574 | 565 | 555 | 603 | 638 | 564 | 505 | 638 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 14 | S 13 | S 13 | S 13 | WSW 10 | S 12 | S 11 | SW 13 | SW 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 |
| kJ | — | — | — | — | 14 | 31 | 55 | 51 | 137 | 178 | 121 | 250 | 346 | 171 | 198 | 191 | 188 | 188 | 146 | 177 | 130 | 125 | 96 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 17 | SW 16 | SW 16 | S 12 | SW 14 | SW 14 | S 11 | W 12 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 13 | SSE 10 |
| kJ | — | — | — | — | — | 11 | 10 | 40 | 72 | 130 | 187 | 114 | 137 | 141 | 128 | 127 | 130 | 104 | 74 | 50 | 49 | 70 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 17 | 17 | 12 | 11 | 11 | 11 | 6 | 11 | 17 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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