Maresias Surf Break

Lat Long: 23.81° S 45.54° W

Maresias 48 hour detailed Surf Forecast

Issued: 8 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Maresias sea temperature is
22.0°C
1.3° 

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 (16 Sep):

  • Morning surf: Morning surf (16 Sep, local time) - 2ft (0.6m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (16 Sep, local time) - 2.5ft (0.8m), 12s period with S swell.
  • Evening surf: Evening surf (16 Sep, local time) - 5ft (1.5m), 9s period with S swell.

The current surf forecast for Maresias at 11AM is: 1.1m 10s primary swell from a South direction and 0.6m 12s secondary swell from a South direction (forecast issued at 08:00am September 16). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (16 Sep)2ft (0.6m)13s
Afternoon (16 Sep)2.5ft (0.8m)12s
Evening (16 Sep)5ft (1.5m)9s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Wed morning. Warm (max 22°C on Fri morning, min 16°C on Wed night). Wind will be generally light.

Wednesday
16
Thursday
17
Friday
18
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
1
1
2
2
2
3
3
2
2
2
2
2
2
2
2
1
0
0
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)
0.9
S
8
0.6
S
13
1.1
S
10
0.8
S
12
0.9
S
12
1.5
S
9
1.5
S
9
1.4
S
9
1.4
S
9
1.3
S
9
1.4
S
11
1.4
S
11
1.3
S
10
1.1
S
10
0.8
S
11
0.9
S
9
1.1
S
11
1.1
S
11
1
S
11
1
S
10
0.9
S
10
0.9
S
10
Wave Graph
Metric surfscale
Energy kJ
112
119
230
184
220
348
328
298
318
300
474
432
325
220
157
126
287
282
224
212
162
159
Wind (km/h)
10
SW
10
S
10
S
10
S
5
SSE
10
E
10
E
10
ENE
10
ENE
10
ENE
10
ENE
10
ENE
15
ENE
10
ENE
10
NE
10
NE
10
NE
10
ENE
15
E
15
ENE
15
NE
15
NE
Wind State
cross-on
on
on
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:44AM1.01m
4:29PM0.93m
5:20AM0.90m
4:53PM0.86m
6:05AM0.78m
5:21PM0.77m
Low Tide
10:41AM0.44m
10:44PM0.26m
10:42AM0.55m
11:10PM0.34m
10:06AM0.63m
light rain
rain showers
rain showers
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:55
5:55
 mm
1
1
1
Temp °C
18
19
19
18
17
17
17
16
17
18
18
18
18
17
17
17
17
20
22
22
19
19
Feels °C
18
20
19
18
17
17
17
16
17
18
18
18
18
17
17
18
18
21
22
22
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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