Surf Forecasts:
How big are the waves at Thermopylae today (12 Sep):
- Morning surf: Morning surf (12 Sep, local time) - 6ft (1.9m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (12 Sep, local time) - 5ft (1.6m), 17s period with SW swell.
- Evening surf: Evening surf (12 Sep, local time) - 8ft (2.5m), 16s period with SW swell.
The current surf forecast for Thermopylae at 5PM is: 2.5m 16s primary swell from a Southwest direction and 2.0m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm September 12). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | 6ft (1.9m) | 14s |
| Afternoon (12 Sep) | 5ft (1.6m) | 17s |
| Evening (12 Sep) | 8ft (2.5m) | 16s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Warm (max 21°C on Sun afternoon, min 14°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the NW by Tue morning). | |||||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | |||||||||||||||||||
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 15 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1776 | 1371 | 3233 | 3212 | 2888 | 2482 | 2140 | 1855 | 1550 | 1262 | 1029 | 1014 | 834 | 663 | 643 | 504 | 479 | 361 | 349 | 263 | 259 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | on | cross | glassy | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross |
High Tide | 4:05PM1.88m | 4:23AM1.74m | 4:37PM1.83m | 4:54AM1.67m | 5:08PM1.74m | ||||||||||||||||
Low Tide | 9:53AM0.27m | 10:19PM0.26m | 10:23AM0.31m | 10:48PM0.33m | 10:52AM0.38m | ||||||||||||||||
 | |  |  | | | | | | |  |  | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | — | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 | 1 | 2 | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 19 | 21 | 18 | 18 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 15 | 14 |
Feels °C | 12 | 13 | 12 | 13 | 14 | 14 | 13 | 15 | 19 | 21 | 18 | 19 | 15 | 14 | 13 | 12 | 12 | 12 | 11 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 1776 | 1067 | 3233 | 3212 | 2888 | 2482 | 2140 | 1855 | 1550 | 1262 | 1029 | 1014 | 834 | 663 | 643 | 504 | 479 | 361 | 349 | 263 | 259 |
Swell 2 Height (m) Direction Period (s) | — | SW 17 | — | — | — | — | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 8 | SE 9 | SSE 7 | SSE 13 | SE 9 | SE 9 |
| kJ | — | 1371 | — | — | — | — | 224 | 183 | 172 | 102 | 97 | 99 | 101 | 46 | 26 | 16 | 50 | 5 | 16 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 13 | SE 11 | SE 13 | SE 13 | SE 13 | S 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 17 | 31 | 7 | 7 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SE 8 | SE 8 | — | — | SE 8 | SE 8 | — | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NW 5 | NW 6 | NW 6 | NW 6 |
| kJ | 349 | 425 | 384 | 329 | 319 | 270 | 684 | 593 | — | — | 346 | 389 | — | 24 | 37 | 64 | 69 | 129 | 177 | 209 | 238 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 344 | 383 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 17 | 6 | 31 | 24 | 24 | 283 | 182 | 31 | 83 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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