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 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):

  • Afternoon surf: Afternoon surf (01 Sep, local time) - 2ft (0.6m), 7s period with S swell.
  • Evening surf: Evening surf (01 Sep, local time) - 3ft (0.9m), 4s period with SSW swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 9PM is: 0.9m 4s primary swell from a South-southwest direction and 0.4m 7s secondary swell from a South-southeast direction (forecast issued at 02:00pm September 01). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (01 Sep)--
Afternoon (01 Sep)2ft (0.6m)7s
Evening (01 Sep)3ft (0.9m)4s

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 23°C on Tue afternoon, min 17°C on Wed night). Mainly fresh winds.

Tue
1
Wednesday
2
Thursday
3
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
0
0
0
0
0
0
1
2
1
2
3
3
3
3
2
1
1
2
Wave
Height (m)
Direction
Period (s)
0.7
S
7
0.6
S
7
0.5
S
7
0.9
SSW
4
1.7
SW
6
1.3
SW
6
1.4
SSW
7
1.6
SSW
8
1.6
SSW
9
2.1
S
11
2.1
S
11
2
S
11
2
S
11
1.9
S
11
1.9
S
11
1.8
SSE
11
1.7
SSE
11
1.6
SSE
11
1.6
SSE
11
1.5
SSE
11
Wave Graph
Metric surfscale
Energy kJ
54
40
27
28
178
119
170
322
363
1029
980
883
915
866
862
792
711
634
561
494
Wind (km/h)
10
E
5
ENE
10
NNW
35
SW
35
SW
20
WSW
20
SW
15
SW
15
SSW
15
S
10
S
5
SE
10
ENE
15
NE
20
NE
20
NE
20
E
25
E
25
ENE
15
NE
Wind State
cross-off
glassy
cross-off
on
on
on
on
on
cross-on
cross-on
cross-on
cross
off
off
off
off
cross-off
cross-off
cross-off
off
High Tide
4:45PM0.98m
5:10AM1.05m
5:16PM0.89m
6:00AM0.93m
5:51PM0.78m
Low Tide
11:46AM0.25m
11:51PM0.28m
12:41PM0.40m
00:46AM0.34m
2:00PM0.53m
cloud
cloud
light rain
mod rain
light rain
cloud
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
 mm
5
8
1
1
1
1
Temp °C
23
23
22
20
19
19
19
20
20
20
20
20
19
18
17
18
21
22
21
21
Feels °C
24
26
24
17
14
17
16
19
18
19
19
20
18
17
15
16
18
19
18
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
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