Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
22.3°C
1.8° 

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 (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 4ft (1.2m), 8s period with S swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 4.5ft (1.3m), 8s period with S swell.
  • Evening surf: Evening surf (13 Sep, local time) - 3.5ft (1.1m), 8s period with S swell.

The current surf forecast for Maresias at 12PM is: 1.3m 8s primary swell from a South direction (forecast issued at 08:00am September 13). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (13 Sep)4ft (1.2m)8s
Afternoon (13 Sep)4.5ft (1.3m)8s
Evening (13 Sep)3.5ft (1.1m)8s

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


Short Range Forecast

Heavy rain (total 53mm), heaviest during Mon night. Warm (max 20°C on Mon morning, min 17°C on Tue night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
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
1
1
0
0
1
1
2
2
1
0
0
0
2
0
0
0
1
0
0
1
1
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)
1.1
SSW
7
1.2
S
8
1.3
S
8
1.3
S
8
1.2
S
8
1.1
S
8
0.9
S
7
1.2
SE
7
0.9
S
7
0.7
SSE
8
0.9
S
8
0.8
SSE
9
0.8
SSE
9
0.9
S
11
1
SSW
11
1.2
SSW
11
0.8
S
10
0.8
S
10
0.9
S
10
0.9
S
9
1.1
S
9
1.1
S
9
Wave Graph
Metric surfscale
Energy kJ
125
168
212
208
167
135
85
152
77
70
90
84
90
198
254
313
131
123
146
134
198
188
Wind (km/h)
10
SSW
5
SSE
5
S
10
SSE
10
ESE
5
ENE
5
NE
5
NE
5
WNW
5
N
10
W
15
WSW
20
WSW
5
N
15
SW
15
WSW
10
SW
5
WSW
10
SW
10
SW
10
WSW
10
SSW
Wind State
on
glassy
on
on
cross-on
cross-off
cross-off
glassy
glassy
glassy
cross
cross-on
cross
off
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
on
High Tide
3:10AM1.23m
3:28PM1.07m
3:41AM1.19m
3:48PM1.03m
4:12AM1.11m
4:08PM0.99m
Low Tide
9:48AM0.12m
9:41PM0.18m
10:09AM0.23m
10:00PM0.18m
10:27AM0.34m
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
light rain
light rain
light rain
mod rain
mod rain
light rain
light rain
light rain
part cloud
cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:00
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:54
5:54
 mm
1
1
1
3
3
1
2
2
2
2
4
7
9
1
1
1
2
5
Temp °C
19
19
19
18
18
19
19
18
19
19
20
19
18
18
18
18
18
18
19
18
18
18
Feels °C
21
21
21
19
19
21
21
20
21
21
22
20
17
19
18
18
19
19
19
18
19
19
  • 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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