Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
22.0°C
1.5° 

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 (10 Sep):

  • Morning surf: Morning surf (10 Sep, local time) - 3.5ft (1.1m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (10 Sep, local time) - 3.5ft (1.0m), 13s period with S swell.
  • Evening surf: Evening surf (10 Sep, local time) - 2.5ft (0.8m), 16s period with SSE swell.

The current surf forecast for Maresias at 1AM is: 1.0m 12s primary swell from a South direction (forecast issued at 08:00pm September 09). An open ocean swell of 0.1m 14s is not directed at the surf break, a second open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (-03) & DateWave HeightWave Period
Morning (10 Sep)3.5ft (1.1m)12s
Afternoon (10 Sep)3.5ft (1.0m)13s
Evening (10 Sep)2.5ft (0.8m)16s

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


Short Range Forecast

Heavy rain (total 62mm), heaviest during Thu afternoon. Warm (max 30°C on Fri afternoon, min 19°C on Sat afternoon). Wind will be generally light.

Wed
9
Thursday
10
Friday
11
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
2
2
2
2
2
1
1
1
3
3
3
2
1
1
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSE
10
0.9
S
13
1
S
13
1
S
12
1.1
S
12
1.1
S
12
1.1
S
12
1
S
13
1
S
13
0.8
SSE
16
1.2
S
15
1.2
S
15
1.1
S
14
1.1
S
13
1
S
13
0.9
S
13
0.9
S
12
0.8
S
12
Wave Graph
Metric surfscale
Energy kJ
104
264
314
290
344
344
374
330
324
337
648
606
482
430
342
260
236
184
Wind (km/h)
10
ENE
15
NE
5
N
0
NNW
5
NNE
0
NE
10
SSW
10
SW
15
SSE
5
NNE
10
NNE
5
N
5
N
10
E
15
ENE
15
ENE
15
NE
15
NNE
Wind State
cross-off
cross-off
off
glassy
glassy
glassy
on
cross-on
on
cross-off
off
off
glassy
cross
cross-off
cross-off
cross-off
cross-off
High Tide
1:42AM1.12m
2:36PM1.13m
2:10AM1.20m
2:52PM1.12m
Low Tide
8:16PM0.32m
8:25AM-0.06m
8:39PM0.28m
8:56AM-0.03m
light rain
part cloud
cloud
cloud
part cloud
light rain
thunderstorm
mod rain
heavy rain
mod rain
mod rain
rain showers
rain showers
rain showers
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
 mm
4
1
1
6
26
7
6
2
3
1
1
Temp °C
21
21
21
21
21
23
26
21
21
20
20
21
21
24
28
30
26
26
Feels °C
24
23
24
24
24
27
28
23
22
22
22
23
24
27
30
33
28
28
  • 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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