Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Monday 12 Jan 2026 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
15.0° C
(Which is 4.6°C colder than average for this time of year)


How big are the waves at Thermopylae today?

The current surf forecast for Thermopylae at 2AM is: 1.8m 12s primary swell from a Southwest direction and 0.2m 11s secondary swell from a West-northwest direction (forecast issued at 07:00pm January 12). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (13 Jan)5ft (1.6m)12s
Afternoon (13 Jan)6ft (1.8m)11s
Evening (13 Jan)6ft (1.8m)11s

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

Updates in  hr  min  s Forecast update imminent
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
2
2
3
2
3
2
1
0
0
2
2
3
2
3
2
2
1
3
0
5
3
3
3
2
Swell
Height Map
Wave Height (m) & direction (?)
2.1
SW
2.1
SW
1.8
SW
1.8
SW
1.8
SW
1.6
SW
1.6
SW
1.7
SW
1.8
SW
1.8
SW
1.8
SW
1.7
SW
1.6
SW
1.5
SW
1.5
SW
1.6
SW
1.7
SW
2.1
SW
3
SW
3.5
SW
3.5
SW
3.5
SW
3.5
SSW
2.5
SW
Period(s) (?)131313121212121211111111111111111112121212111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1438141710069708847487237527707567567015895445445897541319257734153177319722611275
Wind
(km/h)
25
SSW
20
S
20
SSE
15
S
10
SSE
10
S
15
SSW
25
SSW
25
S
20
SSE
15
SSE
10
SSE
5
S
5
NNW
10
WNW
15
WNW
15
NW
15
NNW
25
SSW
30
SSE
35
SSE
35
SSE
30
SSE
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
crosscross-
off
crosscross-
on
cross-
on
crosscross-
off
cross-
off
cross-
off
crossglassononcross-
on
cross-
on
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
11:27PM
1.24
11:41AM
1.38
12:41AM
1.30
12:43PM
1.41
1:33AM
1.39
1:31PM
1.47
Low Tide
/ height (m)
5:14PM
0.80
5:18AM
0.88
6:22PM
0.76
6:31AM
0.85
7:13PM
0.69
7:26AM
0.79
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise-----5:48-------5:48-------5:50--
Sunset-8:00-------8:00-------8:00------
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
light rain
cloud
cloud
part cloud
part cloud
clear
Rain (mm)
------------------2-----
Temp. °C222019191820222222201919181921222121191717171819
Feels °C (?)201818191820212019171718182020212021171211101113
  • 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

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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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