Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Sunday 19 Apr 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
16.4° C
(Which is 1.4°C colder than average for this time of year)

How big are the waves at Thermopylae today?

The current surf forecast for Thermopylae at 12AM is: 5.0m 11s primary swell from a West-southwest direction and 0.8m 17s secondary swell from a Southwest direction (forecast issued at 07:00pm April 19). The wind direction is predicted to be onshore.

Time (SAST) & DateWave HeightWave Period
Morning (20 Apr)15ft (4.5m)14s
Afternoon (20 Apr)15ft (4.5m)14s
Evening (20 Apr)13ft (4.0m)14s

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


Updates in  hr  min  s Forecast update imminent
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
0
0
0
0
0
0
0
6
0
4
3
4
4
4
1
3
4
4
4
5
7
7
7
7
Swell
Height Map
Wave Height (m) & direction (?)
5
WSW
5
WSW
5
WSW
4.5
WSW
4.5
WSW
4.5
WSW
4.5
SW
4.5
SW
4
SW
4
SW
3.5
SW
3.5
SW
3.5
SW
3
SW
3
SW
3.5
SW
3.5
SSW
3.5
SSW
4
SSW
4
SSW
4.5
SSW
4.5
SSW
4.5
SSW
4.5
SSW
Period(s) (?)101111111213141414141313131313121212121314151616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)47556006611956325537717674717039625655024581393635603018293834043741398643295451728995001041110092
Wind
(km/h)
45
W
45
W
40
W
35
W
30
W
20
W
20
WNW
20
WNW
25
NW
20
WNW
15
NW
15
NNW
15
NNW
15
N
25
NNW
15
NW
15
SSW
15
S
15
S
20
SSE
20
SSE
25
SE
30
SE
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrosscross-
on
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
4:42PM
1.79
4:56AM
1.84
5:26PM
1.71
5:42AM
1.71
6:16PM
1.60
6:35AM
1.55
Low Tide
/ height (m)
10:43PM
0.36
11:12AM
0.32
11:28PM
0.47
11:58AM
0.45
12:22AM
0.60
12:54PM
0.59
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Sunrise-----7:11-------7:13-------7:13--
Sunset6:19-------6:17-------6:15-------
light rain
rain showers
rain showers
rain showers
rain showers
clear
rain showers
rain showers
clear
rain showers
clear
clear
clear
clear
part cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
clear
clear
clear
Rain (mm)
12111-11-1-----11-------
Temp. °C151414141515161616151515151416161617161616161618
Feels °C (?)5456810111210111112121111131314121211101012
  • 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

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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