Thermopylae surf break

Thermopylae surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 am Sunday 01 Feb 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
15.9° C
(Which is 4.2°C colder than average for this time of year)


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 Tuesday (Feb 03) at 5AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.9m and 11s. 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 3.0m 14s and forecast to arrive on Sunday (Feb 01) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Feb 05) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 3rd Feb)3ft (0.9m) 11s
Best Surf 8AM (Fri 6th Feb)3.5ft (1.1m) 12s
Most Powerful 2PM (Sun 1st Feb)10ft (3.0m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 24°C on Tue afternoon, min 19°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Thu afternoon, min 21°C on Wed night). Winds decreasing (fresh winds from the SSE on Thu afternoon, calm by Fri night).

Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
1
2
1
0
2
1
1
2
2
0
2
1
1
1
2
0
2
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
3
SW
2.5
SW
2.3
SW
1.8
SSW
1.2
SSW
1
SW
1
SW
0.9
SW
0.9
SW
0.9
SW
0.8
SW
0.8
SW
0.9
SW
2.2
SSE
0.7
SW
1.1
SW
1.1
SW
1.1
SW
1.3
SW
1.2
SW
1
SW
Period(s) (?)14141312121110101312121111613121211101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)341927431756936405242200156282240190171194373175330343303355308196
Wind
(km/h)
15
SSW
30
S
20
S
15
S
25
S
15
SSE
10
S
20
SSE
15
SSE
5
SSW
15
S
15
SSE
15
S
30
SSE
15
SE
10
WSW
15
S
10
SE
10
WSW
25
S
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscrosscrosscrosscross-
off
crosscross-
off
cross-
off
glasscrosscross-
off
crosscross-
off
cross-
off
oncrosscross-
off
oncrosscross-
off
High Tide
/ height (m)
3:19PM
1.78
3:43AM
1.87
3:58PM
1.80
4:20AM
1.90
4:35PM
1.78
4:56AM
1.89
5:10PM
1.73
5:29AM
1.84
5:43PM
1.65
6:03AM
1.76
6:16PM
1.56
6:36AM
1.65
6:50PM
1.45
Low Tide
/ height (m)
9:16AM
0.40
9:31PM
0.31
9:57AM
0.35
10:07PM
0.30
10:34AM
0.34
10:41PM
0.31
11:09AM
0.37
11:13PM
0.36
11:42AM
0.44
11:43PM
0.44
12:15PM
0.52
12:14AM
0.54
12:48PM
0.62
12:45AM
0.65
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunrise6:07--6:07--6:09--6:09--6:11--6:11--6:13--
Sunset-7:51--7:51--7:50--7:49--7:47--7:47--7:46-
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
Rain (mm)
-----------11--------
Temp. °C222320202020232422242522242623242523222422
Feels °C (?)222118211918242321262621242520242522232119
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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