Lopes Mendes (Ilha Grande) Surf Break

Lat Long: 23.18° S 44.12° W

Lopes Mendes (Ilha Grande) 48 hour detailed Surf Forecast

Issued: 2 pm 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.6°C
1.1° 

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 (30 Sep):

  • Afternoon surf: Afternoon surf (30 Sep, local time) - 3.5ft (1.0m), 8s period with ESE swell.
  • Evening surf: Evening surf (30 Sep, local time) - 2.5ft (0.8m), 8s period with ESE swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 5PM is: 0.5m 11s primary swell from a South direction (forecast issued at 02:00pm September 30). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (30 Sep)--
Afternoon (30 Sep)3.5ft (1.0m)8s
Evening (30 Sep)2.5ft (0.8m)8s

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


Short Range Forecast

Heavy rain (total 40mm), heaviest during Fri afternoon. Warm (max 24°C on Wed afternoon, min 19°C on Fri night). Wind will be generally light.

Wed
30
Thursday
1
Friday
2
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
0
1
0
1
1
0
0
0
0
0
1
1
1
1
2
0
0
0
1
Wave
Height (m)
Direction
Period (s)
1.1
ESE
8
1
ESE
8
0.5
S
11
0.8
ESE
8
0.7
ESE
8
0.4
SSE
12
0.5
SE
10
0.5
SE
10
0.6
SSE
10
0.6
SSE
10
0.5
SE
10
0.6
SSE
10
0.6
SSE
10
0.5
SSW
10
0.8
SSW
11
0.9
SSW
11
1
SSW
10
1.5
S
10
1.8
S
6
1.9
S
7
Wave Graph
Metric surfscale
Energy kJ
143
120
57
75
58
54
48
48
64
64
45
61
60
54
153
202
231
426
263
351
Wind (km/h)
10
SSE
10
SSW
5
NNE
10
WNW
10
E
5
S
15
SW
15
SW
20
SW
20
WSW
10
WNW
5
E
10
NE
5
WSW
5
NNW
5
E
10
S
25
SSE
20
SSE
20
SE
Wind State
cross
cross-on
glassy
cross
cross-off
glassy
on
on
on
on
cross-on
glassy
off
glassy
glassy
cross-off
cross-on
cross-on
cross-on
cross
High Tide
4:10PM0.95m
4:57AM1.02m
4:40PM0.87m
5:49AM0.88m
10:22AM0.75m
5:15PM0.79m
Low Tide
11:33AM0.36m
11:27PM0.22m
12:34PM0.51m
00:31AM0.29m
9:12AM0.75m
1:58PM0.62m
clear
rain showers
light rain
rain showers
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
light rain
light rain
part cloud
cloud
light rain
light rain
cloud
mod rain
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
5:37
—
—
—
—
—
—
—
5:35
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:54
—
—
—
—
—
—
—
5:54
—
—
—
—
—
—
—
5:54
—
—
 mm
—
1
5
1
—
—
—
—
—
3
3
1
—
—
1
1
—
6
6
3
Temp °C
26
24
23
23
23
22
21
21
21
21
21
21
21
22
21
21
21
20
20
19
Feels °C
28
26
27
26
26
26
22
23
21
21
23
24
22
25
24
24
23
19
20
18
  • 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
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