Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 2 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
22.1° C
2.1° 

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 (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 6ft (1.8m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 6.5ft (2.0m), 15s period with S swell.
  • Evening surf: Evening surf (13 Aug, local time) - 6.5ft (2.0m), 14s period with S swell.

The current surf forecast for Maresias at 7AM is: 1.8m 13s primary swell from a South direction (forecast issued at 02:00am August 13). An open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 4.

Time (-03) & DateWave HeightWave Period
Morning (13 Aug)6ft (1.8m)13s
Afternoon (13 Aug)6.5ft (2.0m)15s
Evening (13 Aug)6.5ft (2.0m)14s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 25°C on Thu morning, min 19°C on Thu night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
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
4
4
4
3
4
4
4
4
3
3
4
3
3
3
4
4
4
4
3
2
2
2
1
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)
1.8
S
12
1.8
S
12
1.8
S
13
1.8
S
13
1.9
S
15
2
S
15
2
S
15
2
S
14
2
S
14
1.9
S
14
1.8
S
13
1.7
S
13
1.6
S
13
1.7
S
13
1.8
S
14
1.9
SSE
14
2
S
14
2.1
SSE
13
2.2
SSE
13
1.7
S
13
1.6
S
13
1.4
S
12
1.3
S
12
1.2
S
12
Wave Graph
Metric surfscale
Energy kJ
973
1005
1037
1103
1611
1757
1709
1640
1572
1324
1155
1001
888
1032
1208
1367
1531
1581
1643
987
822
593
497
418
Wind (km/h)
5
NNE
5
NNE
5
N
5
SSW
10
S
5
SSW
5
NE
5
SSW
5
W
5
WSW
5
SW
5
SW
5
S
5
S
5
E
10
NNE
10
NE
10
NE
10
ENE
10
E
15
E
15
E
20
ENE
20
NE
Wind State
glassy
glassy
glassy
glassy
on
glassy
glassy
glassy
glassy
cross-on
cross-on
glassy
glassy
on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
High Tide
3:31PM1.12m
2:59AM1.18m
3:50PM1.08m
3:30AM1.20m
4:10PM1.04m
Low Tide
9:24AM-0.08m
9:40PM0.35m
9:56AM-0.03m
10:01PM0.33m
10:25AM0.06m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
thunderstorm
light rain
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:44
5:45
 mm
1
1
1
Temp °C
19
19
20
25
23
23
21
20
20
20
19
20
22
22
20
20
20
20
21
21
21
21
20
20
Feels °C
21
21
22
27
24
26
24
23
23
22
21
23
24
24
22
22
22
22
23
23
23
22
20
20
  • 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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