Surf Forecasts:
How big are the waves at Thermopylae today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 3.5ft (1.1m), 12s period with SW swell.
- Evening surf: Evening surf (31 Jul, local time) - 3.5ft (1.1m), 11s period with SW swell.
The current surf forecast for Thermopylae at 9AM is: 1.3m 12s primary swell from a Southwest direction and 0.4m 6s secondary swell from a Southeast direction (forecast issued at 01:00am July 31). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 4.5ft (1.3m) | 12s |
| Afternoon (31 Jul) | 3.5ft (1.1m) | 12s |
| Evening (31 Jul) | 3.5ft (1.1m) | 11s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Sat afternoon, min 15°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 16 | SW 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 545 | 581 | 486 | 416 | 367 | 355 | 298 | 293 | 250 | 220 | 597 | 581 | 525 | 494 | 486 | 479 | 535 | 552 | 486 | 535 | 519 | 435 | 378 | 325 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | glassy | glassy | off | cross-off | off | cross-off | glassy | cross | glassy | glassy | off | cross-off | cross-off | cross-off | cross-on | cross-on | glassy | glassy |
High Tide | 4:13AM1.63m | 4:35PM1.72m | 4:44AM1.63m | 5:05PM1.74m | 5:17AM1.61m | 5:37PM1.73m | ||||||||||||||||||
Low Tide | 10:18AM0.36m | 10:42PM0.42m | 10:48AM0.36m | 11:15PM0.41m | 11:19AM0.39m | |||||||||||||||||||
 |  |  |  | | |  | | | | |  | | | | | | | | | | | | | |
 | — | 7:39 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 18 | 19 | 21 | 21 | 21 | 19 | 19 | 18 | 18 | 21 | 23 | 22 | 21 | 21 | 20 | 19 | 18 | 19 | 21 | 18 | 17 | 16 |
Feels °C | 15 | 14 | 15 | 16 | 18 | 18 | 19 | 17 | 16 | 15 | 14 | 18 | 20 | 19 | 18 | 18 | 17 | 16 | 14 | 16 | 18 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 12 |
| kJ | 545 | 581 | 486 | 416 | 367 | 355 | 298 | 293 | 250 | 220 | 597 | 581 | 525 | 494 | 486 | 479 | 535 | 552 | 486 | 535 | 519 | 435 | 378 | 325 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SSE 7 | SE 6 | SSE 6 | SSE 5 | WSW 18 | SE 5 | WSW 16 | WSW 16 | WSW 15 | SSE 9 | SE 10 | SE 10 | SE 10 | SSW 16 | SE 11 | SE 11 | SE 11 | S 9 | SSE 9 | S 9 | SW 16 | SW 15 | SW 14 |
| kJ | 22 | 18 | 10 | 6 | 6 | 60 | 6 | 102 | 215 | 188 | 17 | 4 | 4 | 4 | 25 | 5 | 5 | 5 | 15 | 16 | 6 | 122 | 255 | 301 |
Swell 3 Height (m) Direction Period (s) | — | W 19 | W 19 | SW 18 | WSW 18 | — | SW 16 | SE 5 | SE 5 | SSE 5 | SE 9 | — | S 18 | — | SE 11 | — | — | — | SE 11 | — | SE 12 | S 9 | SSE 9 | SSE 8 |
| kJ | — | 7 | 7 | 13 | 30 | — | 68 | 7 | 7 | 5 | 41 | — | 6 | — | 4 | — | — | — | 4 | — | 6 | 6 | 8 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 8 | SE 7 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | NW 3 | — | — |
| kJ | — | — | — | 35 | 54 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 10 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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