Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.5°C
0.8° 

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


How big are the waves at Maresias today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
  • Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.

The current surf forecast for Maresias at 2AM is: 0.2m 12s primary swell from a South direction (forecast issued at 08:00pm September 20). An open ocean swell of 1.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (21 Sep)0.5ft (0.2m)11s
Afternoon (21 Sep)0.5ft (0.2m)11s
Evening (21 Sep)0.5ft (0.2m)11s

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


Short Range Forecast

Heavy rain (total 46mm), heaviest during Wed afternoon. Warm (max 33°C on Mon afternoon, min 18°C on Tue night). Wind will be generally light.

Sun
20
Monday
21
Tuesday
22
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
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
Wave
Height (m)
Direction
Period (s)
0.3
S
12
0.3
S
12
0.2
S
12
0.2
S
12
0.2
S
12
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
10
0.2
S
10
0.2
S
10
0.6
WSW
3
0.8
WSW
4
0.7
SW
4
0.8
SSW
5
1
SSW
6
Wave Graph
Metric surfscale
Energy kJ
25
24
11
11
11
10
9
9
9
9
9
8
8
8
16
17
34
80
Wind (km/h)
20
NNE
25
NNE
10
NNE
15
NNE
15
NNE
15
NNE
5
NNE
10
NNE
20
N
15
N
20
NNE
15
N
10
W
15
WSW
5
WSW
5
S
10
SSW
5
SSW
Wind State
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross
cross
cross
glassy
on
cross-on
High Tide
00:00AM0.70m
12:57PM0.95m
00:23AM0.83m
1:16PM1.03m
Low Tide
5:40PM0.57m
5:25AM0.31m
6:17PM0.47m
6:14AM0.19m
6:48PM0.37m
light rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
 mm
1
1
2
5
4
Temp °C
24
23
23
23
24
28
31
33
31
27
26
27
27
23
22
23
21
21
Feels °C
24
23
24
23
24
29
33
35
30
26
25
26
28
24
25
27
24
24
  • 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 

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 Maresias 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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