Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
21.2°C
0.5° 

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 (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
  • Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.

The current surf forecast for Maresias at 4PM is: 0.2m 11s primary swell from a South direction (forecast issued at 08:00am September 21). An open ocean swell of 1.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (21 Sep)0.5ft (0.2m)11s
Afternoon (21 Sep)0.5ft (0.2m)11s
Evening (21 Sep)0.5ft (0.2m)11s

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


Short Range Forecast

Heavy rain (total 48mm), heaviest during Wed afternoon. Warm (max 31°C on Mon morning, min 17°C on Wed afternoon). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
2
2
3
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)
0.2
S
12
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
11
0.2
S
10
0.2
S
10
0.1
S
12
0.5
WSW
4
0.7
SW
4
0.7
SW
4
0.7
SSW
5
0.9
SSW
6
0.9
SSW
6
1.4
S
7
1.6
S
7
1.8
S
7
1.8
S
8
2.2
S
11
2.1
S
10
2
S
10
Wave Graph
Metric surfscale
Energy kJ
11
10
9
9
9
9
9
8
3
7
16
18
23
56
66
187
233
339
358
1069
919
857
Wind (km/h)
15
NNE
15
NNE
10
NNE
10
NNE
15
NNE
15
N
15
N
15
N
10
SW
15
WSW
5
SSW
15
S
5
S
5
S
15
SW
15
S
10
S
10
S
15
S
10
SSE
10
SE
10
ESE
Wind State
off
cross-off
off
cross-off
off
off
off
off
cross-on
cross
cross-on
on
on
on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
12:57PM0.95m
00:23AM0.83m
1:16PM1.03m
00:45AM0.96m
1:35PM1.10m
Low Tide
5:25AM0.31m
6:17PM0.47m
6:14AM0.19m
6:48PM0.37m
6:54AM0.08m
7:19PM0.29m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
heavy rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:58
 mm
1
3
2
4
4
7
3
5
11
2
3
Temp °C
23
29
31
31
30
26
28
26
26
22
25
21
20
20
20
19
18
18
18
17
18
18
Feels °C
23
29
33
32
31
26
27
26
27
23
28
23
22
22
21
20
19
19
18
17
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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