Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 2 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.6°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 (11 Sep):

  • Morning surf: Morning surf (11 Sep, local time) - 3.5ft (1.1m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (11 Sep, local time) - 3.5ft (1.0m), 13s period with S swell.
  • Evening surf: Evening surf (11 Sep, local time) - 2.5ft (0.8m), 12s period with S swell.

The current surf forecast for Maresias at 8AM is: 1.1m 14s primary swell from a South direction (forecast issued at 02:00am September 11). An open ocean swell of 0.7m 8s is not directed at the surf break, a second open ocean swell of 0.9m 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 (11 Sep)3.5ft (1.1m)13s
Afternoon (11 Sep)3.5ft (1.0m)13s
Evening (11 Sep)2.5ft (0.8m)12s

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


Short Range Forecast

Heavy rain (total 38mm), heaviest during Sun morning. Warm (max 28°C on Fri morning, min 19°C on Sat night). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
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
3
1
2
1
2
2
1
1
0
1
1
0
0
0
0
2
1
1
1
1
1
1
2
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
15
1.2
S
15
1.1
S
14
1.1
S
13
1
S
13
1
S
13
0.9
S
12
0.8
S
12
0.7
S
12
0.7
S
12
0.6
S
12
0.6
S
11
0.5
S
11
0.5
S
11
0.5
S
11
1
SSW
6
1.3
SSW
7
1.3
S
8
1.1
S
7
1.5
S
9
1.5
S
8
1.4
S
8
1.3
S
8
1.3
S
8
Wave Graph
Metric surfscale
Energy kJ
657
606
482
430
342
321
236
184
136
132
93
87
58
57
56
67
186
191
121
334
316
266
224
217
Wind (km/h)
5
N
5
NNW
5
W
5
ENE
10
ESE
10
ENE
10
NE
15
NE
15
NNE
20
WSW
15
N
5
NW
15
SSW
10
S
10
SSW
10
SSW
5
SE
10
SE
10
SSE
10
E
10
E
10
E
10
ESE
15
ENE
Wind State
off
off
cross
glassy
cross-on
cross-off
cross-off
cross-off
cross-off
cross-on
off
glassy
cross-on
on
on
on
glassy
cross-on
cross-on
cross
cross
cross
cross
cross-off
High Tide
2:10AM1.20m
2:52PM1.12m
2:40AM1.24m
3:10PM1.09m
3:10AM1.23m
3:28PM1.07m
Low Tide
8:56AM-0.03m
9:01PM0.24m
9:24AM0.03m
9:21PM0.21m
9:48AM0.12m
part cloud
part cloud
cloud
clear
thunderstorm
part cloud
thunderstorm
clear
part cloud
light rain
light rain
rain showers
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
5:54
 mm
1
1
3
1
2
1
1
2
2
2
1
3
5
2
5
4
2
Temp °C
21
21
20
24
28
27
26
25
26
21
21
24
23
21
20
19
19
19
19
19
20
19
19
19
Feels °C
23
23
22
27
31
30
29
26
28
22
22
27
24
23
21
21
21
20
20
20
22
21
20
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 

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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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