Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 pm Wednesday 10 Dec 2025 SAST
Forecast update in hr  min  s Forecast update imminent
Thermopylae surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thermopylae sea temperature is
13.9° C
(Which is 5.0°C colder than average for this time of year)


How big are the waves at Thermopylae today?

The current surf forecast for Thermopylae at 8PM is: 1.3m 10s primary swell from a Southwest direction and 0.3m 15s secondary swell from a Southwest direction, 1.7m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm December 10). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (10 Dec)5ft (1.6m)11s
Afternoon (10 Dec)4.5ft (1.4m)10s
Evening (10 Dec)4.5ft (1.3m)10s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
10
Thursday
11
Friday
12
Saturday
13
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
Rating
(10 max)
2
1
2
2
3
2
3
2
1
2
0
1
2
0
1
2
0
0
2
4
3
4
4
5
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SW
1.4
SW
1.4
SW
1.3
SW
1.3
SW
1.2
SW
1.6
SSW
1.3
SW
1.3
SSW
1.3
SSW
1.3
SSW
1.2
SSW
1.1
SW
0.6
SW
0.9
WSW
1.2
SW
1.5
SW
1.7
SW
1.9
SW
1.9
SW
2.1
SW
3.5
SW
4
SW
4
SW
Period(s) (?)1010101010101010999991918171716161615141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)46942442433033029048030331229528822619029957288512451486171518931936562758915432
Wind
(km/h)
10
S
20
S
20
S
15
SSE
15
SE
10
SE
5
SE
5
NNW
10
WNW
10
SW
20
SW
10
SSW
5
NW
15
NNW
15
NNW
25
NNW
30
NW
25
WNW
20
W
20
WSW
15
WSW
15
SW
20
SW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassoncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
7:42PM
1.37
8:21AM
1.51
8:54PM
1.29
9:31AM
1.47
10:14PM
1.27
Low Tide
/ height (m)
1:49PM
0.69
1:52AM
0.69
3:03PM
0.74
3:01AM
0.76
4:20PM
0.75
4:15AM
0.79
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise-------5:28-------5:28-------5:28
Sunset--7:49-------7:50-------7:51-----
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
light rain
light rain
rain showers
clear
rain showers
rain showers
part cloud
part cloud
Rain (mm)
----------------121-11--
Temp. °C232524232119182122222120201817181918191817171717
Feels °C (?)212221211918182121212020211715151515161514141314
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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