Surf Forecasts:
How big are the waves at Thermopylae today (18 Jun):
- Morning surf: Morning surf (18 Jun, local time) - 8ft (2.4m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (18 Jun, local time) - 7.5ft (2.3m), 14s period with SW swell.
- Evening surf: Evening surf (18 Jun, local time) - 7ft (2.1m), 13s period with SW swell.
The current surf forecast for Thermopylae at 4AM is: 2.1m 13s primary swell from a Southwest direction and 1.4m 16s secondary swell from a Southwest direction (forecast issued at 01:00am June 18). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jun) | 8ft (2.4m) | 15s |
| Afternoon (18 Jun) | 7.5ft (2.3m) | 14s |
| Evening (18 Jun) | 7ft (2.1m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sat afternoon, min 13°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
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 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1613 | 1452 | 2758 | 2391 | 2053 | 1822 | 1561 | 1417 | 1306 | 1173 | 874 | 597 | 386 | 390 | 378 | 649 | 683 | 655 | 583 | 583 | 528 | 501 | 391 | 329 |
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 | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | glassy | off | off | off | off | off | off | glassy | glassy | cross-off | cross-off |
High Tide | 5:32AM1.65m | 6:05PM1.72m | 6:23AM1.55m | 6:56PM1.66m | 7:18AM1.45m | 7:51PM1.59m | ||||||||||||||||||
Low Tide | 11:29PM0.42m | 11:45AM0.37m | 00:24AM0.48m | 12:34PM0.46m | 1:22AM0.55m | 1:27PM0.56m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 14 | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 19 | 20 | 19 | 19 | 19 | 19 | 20 | 23 | 24 | 24 | 23 | 22 |
Feels °C | 10 | 10 | 9 | 9 | 12 | 11 | 10 | 11 | 11 | 12 | 12 | 13 | 18 | 19 | 18 | 17 | 16 | 16 | 16 | 19 | 21 | 21 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 11 |
| kJ | 1613 | 1452 | 2758 | 2391 | 2053 | 1822 | 1561 | 1417 | 1306 | 1173 | 874 | 597 | 386 | 390 | 378 | 649 | 683 | 655 | 583 | 583 | 528 | 501 | 391 | 329 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | — | — | — | — | — | SW 20 | SW 20 | SW 18 | SSW 17 | SSE 7 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSE 7 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 |
| kJ | 1052 | 1027 | — | — | — | — | — | 16 | 15 | 80 | 184 | 141 | 322 | 353 | 359 | 142 | 32 | 46 | 91 | 91 | 90 | 86 | 137 | 215 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 18 | SSW 12 | SW 16 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SW 18 | SW 17 | SW 16 | — | — | ESE 7 | SW 15 | S 9 |
| kJ | — | — | — | — | — | — | — | — | — | 152 | 98 | 367 | 102 | 66 | 53 | 56 | 49 | 47 | 91 | — | — | 5 | 137 | 56 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 7 | — | — | — | — | — | — | — | — | — |
| kJ | 148 | 111 | 111 | 86 | 72 | 83 | 118 | 154 | 188 | 144 | 156 | 226 | 192 | 140 | 131 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 3 | 1 | 13 | 115 | 52 | 13 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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)
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