Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.5° C
1.4° 

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

The current surf forecast for Maresias at 1AM is: 1.2m 12s primary swell from a South direction and 1.7m 7s secondary swell from a East-southeast direction (forecast issued at 08:00pm August 15). An open ocean swell of 0.3m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.

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

Some drizzle, heaviest during Sat night. Warm (max 30°C on Tue morning, min 20°C on Sat night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
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
3
3
2
2
2
2
1
0
0
1
1
1
1
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
S
12
1.3
S
12
1.2
S
12
1.1
S
12
1.1
S
11
1
S
11
0.9
S
11
0.9
S
11
0.8
S
11
0.8
SSE
11
0.7
S
11
0.7
S
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
Wave Graph
Metric surfscale
Energy kJ
574
488
411
336
305
244
195
191
151
156
114
108
110
106
106
78
75
53
Wind (km/h)
5
E
10
ENE
10
NE
10
ENE
10
NE
10
ENE
15
ENE
20
ENE
20
ENE
20
NE
15
NE
15
NE
10
NE
0
ENE
5
SSE
5
ESE
15
NE
10
NE
Wind State
glassy
cross-off
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
High Tide
4:10PM1.04m
4:03AM1.18m
4:30PM1.00m
4:36AM1.11m
4:51PM0.96m
Low Tide
10:19PM0.32m
10:50AM0.17m
10:38PM0.30m
11:12AM0.29m
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
 mm
1
Temp °C
21
21
20
20
20
21
24
23
20
20
20
20
20
24
26
25
21
21
Feels °C
25
24
22
22
22
23
25
24
20
20
21
21
21
27
28
28
22
22
  • 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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