Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 2 am 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.3° C
1.1° 

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 (16 Aug):

  • Morning surf: Morning surf (16 Aug, local time) - 3.5ft (1.0m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (16 Aug, local time) - 3ft (0.9m), 11s period with SSE swell.
  • Evening surf: Evening surf (16 Aug, local time) - 2.5ft (0.8m), 11s period with S swell.

The current surf forecast for Maresias at 10AM is: 1.0m 11s primary swell from a South direction and 0.2m 13s secondary swell from a East-southeast direction (forecast issued at 02:00am August 16). An open ocean swell of 1.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (-03) & DateWave HeightWave Period
Morning (16 Aug)3.5ft (1.0m)11s
Afternoon (16 Aug)3ft (0.9m)11s
Evening (16 Aug)2.5ft (0.8m)11s

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


Short Range Forecast

Mostly dry. Warm (max 30°C on Tue morning, min 19°C on Sun night). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
2
2
2
2
1
1
0
1
1
1
1
0
0
1
1
1
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)
1.2
S
12
1.1
S
12
1.1
S
11
1
S
11
0.9
S
11
0.9
SSE
11
0.9
SSE
11
0.8
S
11
0.8
SSE
11
0.8
SSE
10
0.7
S
11
0.7
S
10
0.7
S
10
0.6
S
10
0.6
S
10
0.5
S
10
0.5
S
10
0.4
SSE
10
0.4
SSE
10
0.4
SSE
10
0.3
SSE
10
0.3
SSE
9
0.2
S
11
0.2
S
11
Wave Graph
Metric surfscale
Energy kJ
411
336
305
244
195
198
198
151
150
147
110
108
106
78
75
53
52
33
32
32
18
17
9
9
Wind (km/h)
10
NE
10
NE
10
NE
10
ENE
15
ENE
15
ENE
20
NE
20
NE
15
NE
15
NE
10
NE
5
ENE
5
SSE
5
ESE
10
NE
15
NE
10
NNE
10
NNE
10
NNE
5
NE
5
SSE
5
ESE
10
NNE
10
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
cross
cross-off
cross-off
High Tide
4:03AM1.18m
4:30PM1.00m
4:36AM1.11m
4:51PM0.96m
5:11AM1.02m
5:13PM0.90m
Low Tide
10:50AM0.17m
10:38PM0.30m
11:12AM0.29m
11:00PM0.30m
11:31AM0.41m
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
 mm
Temp °C
20
20
20
21
24
23
20
20
20
20
19
23
26
25
20
21
21
21
21
27
30
29
25
25
Feels °C
22
22
22
23
25
24
20
21
21
21
20
26
28
28
21
22
22
22
21
28
31
30
26
25
  • 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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