Cap St Louis Surf Break

Lat Long: 43.18° N 5.68° E

Cap St Louis 48 hour detailed Surf Forecast

Issued: 7 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cap St Louis sea temperature is
27.6° C
4.3° 

Cap St Louis surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Cap St Louis today (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 4ft (1.2m), 6s period with W swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.1m), 6s period with W swell.
  • Evening surf: Evening surf (18 Aug, local time) - 5ft (1.5m), 6s period with W swell.

The current surf forecast for Cap St Louis at 3PM is: 1.1m 6s primary swell from a West direction (forecast issued at 07:00am August 18). The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (18 Aug)4ft (1.2m)6s
Afternoon (18 Aug)3.5ft (1.1m)6s
Evening (18 Aug)5ft (1.5m)6s

Table - waves today at Cap St Louis. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 6mm), mostly falling on Thu afternoon. Warm (max 33°C on Tue afternoon, min 26°C on Tue morning). Mainly fresh winds.

Tuesday
18
Wednesday
19
Thursday
20
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
WNW
6
1.3
WNW
6
1.3
W
6
1.1
W
6
1.4
W
6
1.7
W
6
1.2
W
6
1.2
W
5
1.1
W
5
0.7
WSW
5
0.4
SW
5
0.6
WSW
5
0.5
SW
4
0.4
SW
4
0.5
SW
4
0.5
SW
4
0.5
SW
4
0.5
SSW
4
0.5
SSW
4
0.8
S
4
0.9
SSW
5
0.8
SSW
5
1
SW
7
Wave Graph
Metric surfscale
Energy kJ
109
113
126
95
139
214
92
80
60
25
9
17
9
6
7
7
8
10
10
24
34
31
107
Wind (km/h)
25
NW
20
NW
20
NW
20
W
35
W
30
WNW
15
WNW
10
NW
5
NNW
5
WNW
10
W
15
WSW
15
SW
10
SSW
5
SSW
10
E
10
E
10
SE
10
SE
15
SSW
15
SSW
10
S
10
S
Wind State
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
glassy
glassy
cross
cross-on
on
on
on
cross-off
cross-off
cross
cross
on
on
cross-on
cross-on
High Tide
1:23PM0.18m
1:14AM0.19m
2:26PM0.17m
1:47AM0.16m
3:57PM0.17m
Low Tide
7:13AM0.06m
7:10PM0.09m
7:48AM0.07m
8:14PM0.11m
8:35AM0.07m
10:04PM0.13m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
thunderstorm
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:46
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:36
8:34
8:32
 mm
3
Temp °C
28
26
29
33
33
32
31
28
27
26
30
30
29
27
26
26
26
26
28
28
27
27
26
Feels °C
25
23
26
30
28
29
29
27
28
27
30
28
30
30
31
29
28
30
32
31
28
29
29
  • 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
How to use the Wavefinder 

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