Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 am 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
13.2° C
(Which is 5.6°C colder than average for this time of year)


How big are the waves at Thermopylae today?

The current surf forecast for Thermopylae at 6AM is: 1.6m 11s primary swell from a Southwest direction and 0.1m 11s secondary swell from a West direction, 1.5m 7s secondary swell from a South-southeast direction (forecast issued at 01:00am December 10). The wind direction is predicted to be cross-offshore and the swell rating is 3.

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
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
2
2
3
3
2
1
2
2
3
3
3
1
1
2
0
1
1
0
0
1
0
0
0
3
Swell
Height Map
Wave Height (m) & direction (?)
1.7
SW
1.6
SW
1.6
SW
1.6
SW
1.5
SW
1.5
SW
1.4
SW
1.3
SW
1.3
SW
1.2
SW
1.6
SSW
1.2
SW
1.3
SSW
1.3
SSW
1.2
SW
1.1
SW
1.1
SW
0.6
SW
0.9
WSW
1.2
SW
1.5
SW
1.7
SW
1.9
SW
3.5
WSW
Period(s) (?)1111111210101010101010109999919181817161610
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6886405956284694694243533302904632753122952531941902995728951260150417152104
Wind
(km/h)
25
SSE
20
SE
15
SE
15
SE
10
S
20
S
25
S
15
SSE
15
SE
10
SE
5
ESE
5
N
10
WNW
10
WSW
20
SW
15
SW
10
NNW
20
NNW
25
NNW
35
N
40
NNW
20
WNW
25
W
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
glasscrosscross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
ononon
High Tide
/ height (m)
7:18AM
1.57
7:42PM
1.37
8:21AM
1.51
8:54PM
1.29
9:31AM
1.47
Low Tide
/ height (m)
12:52AM
0.59
1:49PM
0.69
1:52AM
0.69
3:03PM
0.74
3:01AM
0.76
4:20PM
0.75
Wednesday
10
Thursday
11
Friday
12
Sunrise---5:28-------5:28-------5:28----
Sunset------7:49-------7:50-------7:51-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
light rain
light rain
rain showers
part cloud
Rain (mm)
--------------------151-
Temp. °C171717182325232321191922222222202018181819171818
Feels °C (?)141415162121192119181922212221202017151312151415
  • 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

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.


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