Lopes Mendes (Ilha Grande) Surf Break

Lat Long: 23.18° S 44.12° W

Lopes Mendes (Ilha Grande) 48 hour detailed Surf Forecast

Issued: 8 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.5°C
1.3° 

Lopes Mendes (Ilha Grande) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Lopes Mendes (Ilha Grande) today (13 Sep):

  • Evening surf: Evening surf (13 Sep, local time) - 1.5ft (0.5m), 11s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 12AM is: 0.5m 11s primary swell from a South direction and 0.9m 5s secondary swell from a Southwest direction (forecast issued at 08:00pm September 12). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (13 Sep)--
Afternoon (13 Sep)--
Evening (13 Sep)1.5ft (0.5m)11s

Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 31mm), heaviest during Mon morning. Warm (max 21°C on Sat night, min 19°C on Sun night). Wind will be generally light.

Sat
12
Sunday
13
Monday
14
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
1
0
1
0
1
1
1
2
2
0
Wave
Height (m)
Direction
Period (s)
0.5
S
11
0.5
S
11
0.5
S
11
0.4
SSW
10
0.4
SSW
10
0.5
S
10
0.8
S
7
1.3
S
8
1.2
SSW
8
1.2
S
8
1.3
S
7
1.2
S
7
1.1
S
7
1.1
S
7
1
S
7
1.1
S
8
1.1
S
8
1.1
SSE
8
Wave Graph
Metric surfscale
Energy kJ
59
58
57
35
33
47
58
212
197
181
183
155
126
120
103
157
161
163
Wind (km/h)
15
SW
20
SW
15
SW
10
S
10
SSW
5
S
10
SSE
15
SE
20
ESE
20
E
20
E
20
ENE
10
ENE
10
NNE
5
E
5
NNW
5
NE
15
SW
Wind State
on
on
on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
glassy
glassy
glassy
on
High Tide
3:05PM1.09m
3:08AM1.22m
3:27PM1.07m
3:41AM1.18m
3:50PM1.04m
Low Tide
9:45PM0.20m
10:10AM0.12m
10:10PM0.19m
10:38AM0.23m
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:50
 mm
1
1
1
1
1
2
2
1
1
3
4
1
3
2
Temp °C
25
21
21
20
20
20
20
20
20
20
20
19
19
19
20
21
20
20
Feels °C
26
20
22
21
21
22
21
20
19
19
19
18
20
20
23
24
22
20
  • 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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