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Surf Forecasts:

Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 am Saturday 10 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
15.1° C
 (Which is 4.6°C colder than average for this time of year)
Nearby Cam: 5km away, Clifton 4th beach webcam Live Stream, Cape Town

Best Forecast Surf Conditions for Thermopylae this week:

The surf forecast for Thermopylae over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jan 11) at 2AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.5m and 10s. Another secondary swell of 1.7m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Thermopylae in the next 12 days are 2.1m 16s and forecast to arrive on Monday (Jan 12) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Thursday (Jan 15) at 8PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 11th Jan)4.5ft (1.4m) 12s
Best Surf11PM (Sun 11th Jan)4.5ft (1.4m) 18s
Most Powerful 5AM (Mon 12th Jan)7ft (2.1m) 16s

Table - best surf conditions forecast for Thermopylae over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 29°C on Sat afternoon, min 18°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Wed night. Warm (max 23°C on Tue afternoon, min 15°C on Thu night). Winds increasing (calm on Tue night, strong winds from the SSE by Thu afternoon).

Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
3
3
2
2
4
3
2
2
2
1
3
2
1
1
1
0
2
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
WSW
1.2
SSW
1.4
SW
1.3
SW
0.8
SW
1.8
SW
1.9
SW
2
SW
1.7
SW
1.6
SW
1.8
SW
1.6
SW
1.5
SW
1.6
SW
2.5
SW
2.5
SSW
2
SW
2.1
S
1.4
S
1.2
S
1.4
SSW
Period(s) (?)111412122117141312121111111112111110997
Wave
Graph
(?)Metric surfscale
Energy kJ (?)27549355850353817131505133983372377065053468519461815915878306215158
Wind
(km/h)
10
S
20
SSE
15
SE
10
SSW
20
S
5
S
15
SSW
25
S
10
S
10
SW
20
SW
5
S
10
WNW
15
W
30
S
40
SSE
45
SSE
15
SE
10
WSW
20
SSW
20
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		crosscrossglasscross-
on		crosscrosscross-
on		cross-
on		glassononcrosscross-
off		cross-
off		cross-
off		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
8:14AM
1.51
8:41PM
1.29
9:12AM
1.42
9:56PM
1.23
10:24AM
1.38
11:27PM
1.24
11:41AM
1.38
12:41AM
1.30
12:43PM
1.41
1:33AM
1.39
1:31PM
1.47
2:13AM
1.48
2:11PM
1.54
2:47AM
1.57
Low Tide
/ height (m)
2:46PM
0.76
2:38AM
0.80
3:56PM
0.81
3:52AM
0.86
5:14PM
0.80
5:18AM
0.88
6:22PM
0.76
6:31AM
0.85
7:13PM
0.69
7:26AM
0.79
7:53PM
0.61
8:09AM
0.72
8:28PM
0.53
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sunrise5:45--5:46--5:47--5:48--5:48--5:50--5:50--
Sunset-8:00--8:00--8:00--8:00--8:00--8:00--8:00-
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
light rain
part cloud
clear
clear
clear
clear
part cloud
Rain (mm)
--------------1------
Temp. °C252925262722222220222321212119181818202120
Feels °C (?)232623262622232118222221201917111011191817
  • 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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Latest Updates

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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.

View detailed surf forecast for Thermopylae at:
surf-forecast.com

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Information about the Thermopylae Surf forecast

The above surf forecast table for Thermopylae provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Thermopylae can be found by selecting the local surf guide option on the grey menu. Our Thermopylae surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Thermopylae) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Thermopylae may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Cape Town? If you are looking for accommodation near Thermopylae, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 8 km (5 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 11 km (7 miles) away, Bellville, Atlantis and Kayamnandi.

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