Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.7° C
1.5° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 4s period with SW swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 1ft (0.3m), 11s period with S swell.
  • Evening surf: Evening surf (20 Aug, local time) - 1.5ft (0.4m), 10s period with S swell.

The current surf forecast for Maresias at 11AM is: 0.2m 12s primary swell from a South direction and 0.4m 4s secondary swell from a Southwest direction (forecast issued at 08:00am August 20). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (20 Aug)1.5ft (0.4m)4s
Afternoon (20 Aug)1ft (0.3m)11s
Evening (20 Aug)1.5ft (0.4m)10s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Thu afternoon, min 16°C on Fri night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
1
0
1
1
0
0
0
0
1
0
1
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SE
12
0.4
SW
4
0.2
S
12
0.3
S
11
0.3
S
11
0.4
S
10
0.4
SSW
10
0.5
S
10
0.5
S
9
0.7
SW
9
1.3
SSW
5
1.6
SSW
7
1.6
SSW
7
1.6
SSW
7
1.4
SSW
7
1.3
S
7
1.4
S
8
1.7
S
10
1.8
S
10
1.8
S
10
1.8
S
10
1.7
S
10
Wave Graph
Metric surfscale
Energy kJ
6
6
11
22
21
35
33
47
43
81
92
214
233
245
178
161
266
592
676
676
663
580
Wind (km/h)
5
NNW
10
SW
5
S
10
ESE
10
NNE
10
NE
15
NNE
10
N
10
NNW
15
SW
20
SW
15
SW
15
SW
10
SW
5
WSW
5
WNW
5
SSE
5
S
5
S
5
S
5
SE
10
E
Wind State
glassy
cross-on
glassy
cross
cross-off
cross-off
cross-off
off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
on
on
on
cross-on
cross
High Tide
6:38AM0.78m
6:05PM0.76m
12:42PM0.74m
6:53PM0.67m
1:01PM0.85m
Low Tide
11:11AM0.63m
2:30AM0.44m
4:39PM0.65m
4:37AM0.40m
6:14PM0.57m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:46
5:46
 mm
Temp °C
19
22
25
26
21
22
24
24
24
24
20
19
18
18
17
16
18
18
19
18
18
17
Feels °C
21
23
27
27
23
22
22
22
22
23
19
18
17
18
17
16
19
18
19
18
19
17
  • 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.


Nearest locationNearest