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 3AM is: 1.3m 13s primary swell from a Southwest direction and 0.5m 6s secondary swell from a South-southeast direction (forecast issued at 07:00pm July 30). The wind direction is predicted to be offshore and the swell rating is 3.
| 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 17°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | |||||||||||||||||
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 13 | 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 |
Wave Graph  | |||||||||||||||||||
 kJ | 732 | 757 | 553 | 545 | 581 | 486 | 416 | 367 | 355 | 298 | 293 | 250 | 220 | 597 | 581 | 525 | 494 | 486 | 479 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | off | off | off | cross-off | cross-off | cross | off | off | off | off | off | glassy | glassy | cross | cross-off | off |
High Tide | 4:06PM1.69m | 4:13AM1.63m | 4:35PM1.72m | 4:44AM1.63m | 5:05PM1.74m | ||||||||||||||
Low Tide | 10:11PM0.45m | 10:18AM0.36m | 10:42PM0.42m | 10:48AM0.36m | |||||||||||||||
 |  | |  | |  |  | | | | | | | | | | | | | |
 | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — |
 | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:06 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 17 | 17 | 17 | 19 | 21 | 22 | 21 | 20 | 19 | 19 | 18 | 21 | 23 | 22 | 21 | 21 |
Feels °C | 16 | 16 | 15 | 15 | 14 | 14 | 16 | 18 | 19 | 18 | 18 | 16 | 16 | 14 | 18 | 20 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | 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 |
| kJ | 732 | 757 | 553 | 545 | 581 | 486 | 416 | 367 | 355 | 298 | 293 | 250 | 220 | 597 | 581 | 525 | 494 | 486 | 479 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 6 | SSE 6 | SSE 7 | SE 6 | SSE 6 | SSE 6 | WSW 18 | SE 5 | WSW 16 | WSW 16 | WSW 15 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SSW 16 | SE 11 |
| kJ | — | — | 23 | 22 | 18 | 9 | 6 | 6 | 60 | 6 | 102 | 215 | 188 | 18 | 10 | 9 | 4 | 25 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 19 | W 19 | SW 18 | WSW 18 | — | SW 16 | SE 5 | SSE 5 | SSE 5 | SE 10 | — | S 18 | — | SE 11 | — |
| kJ | — | — | — | — | 7 | 7 | 13 | 30 | — | 68 | 7 | 5 | 5 | 45 | — | 6 | — | 4 | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SE 6 | SE 6 | — | — | — | — | SE 7 | SE 5 | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 60 | 69 | — | — | — | — | 54 | 7 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thermopylae surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest