Thermopylae Surf Break

Lat Long: 33.90° S 18.40° E

Thermopylae 48 hour detailed Surf Forecast

Issued: 7 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Thermopylae sea temperature is
13.1° C
2.3° 

Thermopylae surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Thermopylae today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 5.5ft (1.7m), 19s period with SW swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 6ft (1.9m), 18s period with SW swell.
  • Evening surf: Evening surf (12 Aug, local time) - 6.5ft (2.0m), 17s period with SW swell.

The current surf forecast for Thermopylae at 1AM is: 1.4m 21s primary swell from a Southwest direction and 1.0m 9s secondary swell from a South-southeast direction, 1.8m 8s secondary swell from a Southeast direction (forecast issued at 07:00pm August 11). The wind direction is predicted to be offshore and the swell rating is 4.

Time (SAST) & DateWave HeightWave Period
Morning (12 Aug)5.5ft (1.7m)19s
Afternoon (12 Aug)6ft (1.9m)18s
Evening (12 Aug)6.5ft (2.0m)17s

Table - waves today at Thermopylae. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
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
Rating
(10 max)
4
4
4
4
4
4
4
4
4
3
4
5
5
5
5
3
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSW
12
0.9
WSW
23
1.2
SW
22
1.4
SW
21
1.6
SW
20
1.7
SW
19
1.9
SW
18
1.8
SW
18
1.9
SW
17
2
SW
17
1.9
SW
17
1.8
SW
16
1.6
SW
19
2
WSW
16
2.4
SW
17
2.2
SW
17
2.2
SW
16
2
WSW
16
2
WSW
16
Wave Graph
Metric surfscale
Energy kJ
541
947
1414
1850
1922
2184
2223
2019
2238
2293
2037
1652
1985
1977
3307
2715
2379
2007
1957
Wind (km/h)
10
ESE
15
ESE
15
ESE
15
ESE
15
ESE
10
ENE
10
E
10
E
10
SE
15
ESE
15
ESE
20
E
15
E
10
E
15
NNE
20
NNE
10
NNW
10
N
10
N
Wind State
cross-off
cross-off
off
off
cross-off
off
off
off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-on
cross
cross-off
High Tide
2:36PM1.73m
2:54AM1.73m
3:18PM1.83m
3:36AM1.77m
3:58PM1.88m
Low Tide
8:50PM0.36m
9:06AM0.27m
9:33PM0.28m
9:45AM0.24m
10:13PM0.26m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:14
6:14
 mm
Temp °C
18
16
15
14
14
14
16
19
20
20
20
20
20
19
21
25
24
22
20
Feels °C
15
12
12
11
10
10
13
16
17
16
16
15
16
16
18
20
21
19
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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.


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