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 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.1°C
0.7° 

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 (29 Sep):

  • Morning surf: Morning surf (29 Sep, local time) - 3.5ft (1.1m), 6s period with ESE swell.
  • Afternoon surf: Afternoon surf (29 Sep, local time) - 1.5ft (0.5m), 9s period with S swell.
  • Evening surf: Evening surf (29 Sep, local time) - 5ft (1.5m), 7s period with ESE swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 3AM is: 1.5m 6s primary swell from a East-southeast direction and 1.3m 6s secondary swell from a East-southeast direction, 0.8m 10s secondary swell from a South direction (forecast issued at 08:00pm September 28). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (29 Sep)3.5ft (1.1m)6s
Afternoon (29 Sep)1.5ft (0.5m)9s
Evening (29 Sep)5ft (1.5m)7s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Tue afternoon. Warm (max 27°C on Wed morning, min 21°C on Thu morning). Wind will be generally light.

Mon
28
Tuesday
29
Wednesday
30
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
2
1
1
2
1
0
1
2
2
0
2
2
0
0
0
0
Wave
Height (m)
Direction
Period (s)
0.7
S
11
0.8
S
10
1.5
ESE
6
1.5
ESE
6
0.7
S
10
1.1
ESE
6
1.2
ESE
6
0.5
S
9
1.5
ESE
6
1.5
ESE
7
1.5
ESE
7
1.6
ESE
8
1.5
ESE
8
1.3
ESE
8
1.3
ESE
8
0.7
SSW
11
0.5
S
11
0.8
ESE
8
Wave Graph
Metric surfscale
Energy kJ
110
130
160
165
97
97
107
39
172
200
215
273
246
207
212
123
57
79
Wind (km/h)
15
E
15
E
5
NE
5
WSW
5
SSE
10
ENE
20
ESE
20
E
25
NNE
20
NE
10
ENE
15
SW
5
NNE
5
N
15
S
25
SW
25
SW
10
WSW
Wind State
cross-off
cross-off
glassy
cross-on
cross
cross-off
cross-off
cross-off
cross-off
off
off
on
cross-off
glassy
cross-on
on
on
cross-on
High Tide
3:17PM1.08m
3:36AM1.21m
3:42PM1.02m
4:14AM1.13m
4:10PM0.95m
Low Tide
10:07PM0.14m
10:44AM0.22m
10:44PM0.17m
11:33AM0.36m
light rain
light rain
part cloud
part cloud
part cloud
clear
clear
clear
light rain
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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—
—
5:39
—
—
—
—
—
—
—
5:37
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
—
5:53
—
—
—
—
—
—
—
5:54
—
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 mm
1
1
—
—
—
—
—
—
4
—
—
—
—
—
—
—
—
—
Temp °C
22
22
22
22
22
23
23
23
23
23
23
23
25
26
27
23
22
22
Feels °C
24
24
26
25
25
25
23
24
23
24
25
24
28
29
29
23
22
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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How to use the Wavefinder 

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