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 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.9° C
1.9° 

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 (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 8ft (2.4m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 8ft (2.5m), 13s period with S swell.
  • Evening surf: Evening surf (11 Aug, local time) - 7.5ft (2.3m), 12s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 7AM is: 2.3m 13s primary swell from a South direction (forecast issued at 02:00am August 11). An open ocean swell of 0.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (11 Aug)8ft (2.4m)13s
Afternoon (11 Aug)8ft (2.5m)13s
Evening (11 Aug)7.5ft (2.3m)12s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 22°C on Thu morning, min 18°C on Tue morning). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
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)
2
3
3
3
3
4
4
4
4
4
4
4
3
3
3
4
4
4
4
4
2
2
4
3
Wave
Height (m)
Direction
Period (s)
2.3
S
12
2.2
S
12
2.2
S
13
2.4
S
13
2.5
S
13
2.5
S
13
2.5
S
13
2.3
S
12
2.2
S
12
2.1
S
12
2
S
12
2.1
S
12
2.1
S
12
2
S
12
2
S
12
1.9
S
12
2.2
SSE
12
1.9
S
12
1.9
S
12
1.9
S
12
1.9
S
13
1.9
S
14
2
S
14
2
S
14
Wave Graph
Metric surfscale
Energy kJ
1624
1462
1583
1942
2240
2206
1977
1595
1413
1266
1129
1245
1269
1148
1129
1036
1338
1056
1074
1091
1127
1431
1630
1585
Wind (km/h)
15
SSE
15
SSE
15
SSE
15
SE
15
ESE
15
E
15
E
15
ENE
15
ENE
10
NE
15
ENE
15
NE
15
E
25
E
25
E
20
ENE
15
NE
10
NNE
5
NNW
10
NNE
10
S
15
SW
5
WSW
10
SW
Wind State
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
off
off
cross-off
glassy
off
cross-on
on
glassy
on
High Tide
2:54PM1.15m
1:50AM1.03m
3:12PM1.13m
2:21AM1.12m
3:27PM1.10m
Low Tide
8:12AM-0.06m
8:50PM0.33m
8:55AM-0.11m
9:23PM0.32m
9:34AM-0.11m
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:38
 mm
1
1
2
1
1
1
Temp °C
19
18
18
18
18
18
19
19
19
18
18
19
19
20
20
20
19
19
20
22
22
22
21
21
Feels °C
19
17
17
17
17
17
18
18
18
18
17
18
17
17
18
18
18
19
22
22
22
22
23
23
  • 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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