Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 am 12 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 (12 Sep):

  • Morning surf: Morning surf (12 Sep, local time) - 2ft (0.6m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (12 Sep, local time) - 1.5ft (0.5m), 11s period with S swell.
  • Evening surf: Evening surf (12 Sep, local time) - 1.5ft (0.4m), 11s period with S swell.

The current surf forecast for Maresias at 12PM is: 0.5m 11s primary swell from a South direction (forecast issued at 08:00am September 12). An open ocean swell of 0.5m 8s is not directed at the surf break, a second open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (12 Sep)2ft (0.6m)11s
Afternoon (12 Sep)1.5ft (0.5m)11s
Evening (12 Sep)1.5ft (0.4m)11s

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


Short Range Forecast

Heavy rain (total 44mm), heaviest during Mon night. Warm (max 25°C on Sat afternoon, min 18°C on Mon afternoon). Wind will be generally light.

Saturday
12
Sunday
13
Monday
14
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)
1
1
1
1
0
0
0
0
0
0
1
1
0
2
2
2
2
1
0
1
1
2
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)
0.6
S
12
0.6
S
11
0.5
S
11
0.5
S
11
0.5
S
11
0.4
S
11
0.4
S
10
1
S
6
1.4
S
7
1.4
S
7
1.4
S
8
1.3
S
8
1.2
S
8
1.5
SSE
8
1.1
S
7
1.1
S
7
1
S
7
1
S
7
1
S
8
1.1
SSE
8
1.4
SSE
8
1.6
SSE
8
Wave Graph
Metric surfscale
Energy kJ
93
87
58
57
57
35
32
71
173
194
223
198
160
240
117
107
97
97
131
147
237
326
Wind (km/h)
10
NNW
15
N
5
NNW
0
NE
10
SW
10
SSW
10
S
15
SSW
10
S
10
ESE
10
SE
10
SE
10
E
10
ENE
10
ENE
0
NW
5
ENE
5
WSW
15
WSW
15
WSW
10
WSW
10
NNE
Wind State
off
off
cross-off
glassy
cross-on
on
on
on
on
cross
cross-on
cross-on
cross
cross-off
cross-off
glassy
glassy
cross
cross
cross
cross
off
High Tide
3:10PM1.09m
3:10AM1.23m
3:28PM1.07m
3:41AM1.19m
3:48PM1.03m
Low Tide
9:24AM0.03m
9:21PM0.21m
9:48AM0.12m
9:41PM0.18m
10:09AM0.23m
light rain
light rain
light rain
cloud
cloud
cloud
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
light rain
cloud
cloud
light rain
mod rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:54
5:54
 mm
1
1
1
1
7
5
3
2
4
4
1
1
6
8
Temp °C
22
22
23
25
21
21
20
19
19
19
20
19
19
19
19
19
19
20
20
19
18
18
Feels °C
24
23
26
29
24
23
22
20
21
21
22
20
20
21
21
22
22
22
20
19
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 

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