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 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
23.2°C
2.0° 

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 (01 Sep):

  • Morning surf: Morning surf (01 Sep, local time) - 4.5ft (1.3m), 5s period with SW swell.
  • Afternoon surf: Afternoon surf (01 Sep, local time) - 2.5ft (0.7m), 7s period with S swell.
  • Evening surf: Evening surf (01 Sep, local time) - 3ft (0.9m), 5s period with SW swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 8AM is: 1.3m 5s primary swell from a Southwest direction and 0.5m 8s secondary swell from a South direction (forecast issued at 02:00am September 01). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (01 Sep)4.5ft (1.3m)5s
Afternoon (01 Sep)2.5ft (0.7m)7s
Evening (01 Sep)3ft (0.9m)5s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Tue night. Warm (max 22°C on Tue morning, min 17°C on Wed night). Mainly fresh winds.

Tuesday
1
Wednesday
2
Thursday
3
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
2
0
0
0
0
0
0
0
0
1
2
3
3
3
3
3
2
0
0
2
Wave
Height (m)
Direction
Period (s)
0.4
SSW
6
0.4
S
7
0.6
SSW
8
1.3
SW
5
1.1
SW
6
0.7
S
7
0.6
S
7
0.9
SW
5
0.8
SW
5
1.4
SW
6
1.5
SW
6
1.5
SSW
7
1.6
SSW
8
1.8
SSW
9
1.9
S
10
1.9
S
10
1.8
S
10
1.8
S
10
1.7
S
10
1.7
SSE
10
1.6
SSE
10
1.5
SSE
10
1.4
SSE
11
1.3
SSE
11
Wave Graph
Metric surfscale
Energy kJ
14
14
47
83
75
54
39
42
34
120
136
215
298
564
697
682
623
650
608
634
511
458
408
353
Wind (km/h)
15
NNE
20
NNE
35
SW
35
SW
5
S
15
S
20
WSW
10
WNW
30
WSW
30
SW
25
SSW
20
SSW
15
SSW
15
SSW
10
S
5
SE
10
NE
15
NE
20
NE
20
NE
20
E
25
E
25
ENE
20
NE
Wind State
cross-off
cross-off
on
on
glassy
cross-on
on
cross
on
on
on
on
on
cross-on
cross-on
glassy
off
off
off
off
cross-off
cross-off
cross-off
off
High Tide
4:29AM1.15m
4:45PM0.98m
5:10AM1.05m
5:16PM0.89m
6:00AM0.93m
5:51PM0.78m
Low Tide
11:09PM0.24m
11:46AM0.25m
11:51PM0.28m
12:41PM0.40m
00:46AM0.34m
2:00PM0.53m
clear
part cloud
cloud
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
 mm
4
5
3
2
2
1
Temp °C
23
24
22
21
22
22
22
21
19
20
20
20
20
20
20
19
19
18
17
18
22
22
21
21
Feels °C
24
24
20
18
24
23
21
21
16
17
17
18
18
18
19
19
18
17
15
15
20
19
19
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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