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 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.9° 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 (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 6ft (1.9m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 6.5ft (2.0m), 14s period with S swell.
  • Evening surf: Evening surf (13 Aug, local time) - 7ft (2.1m), 14s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 3AM is: 1.9m 12s primary swell from a South direction and 0.8m 5s secondary swell from a East-southeast direction (forecast issued at 08:00pm August 12). The wind direction is predicted to be glassy and the swell rating is 4.

Time (-03) & DateWave HeightWave Period
Morning (13 Aug)6ft (1.9m)12s
Afternoon (13 Aug)6.5ft (2.0m)14s
Evening (13 Aug)7ft (2.1m)14s

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


Short Range Forecast

Some drizzle, heaviest during Sat afternoon. Warm (max 24°C on Thu morning, min 20°C on Wed night). Winds increasing (calm on Thu afternoon, fresh winds from the E by Sat afternoon).

Wed
12
Thursday
13
Friday
14
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
4
4
4
4
3
3
4
4
1
1
2
3
3
2
3
4
Wave
Height (m)
Direction
Period (s)
1.9
S
12
1.9
S
12
1.9
S
12
1.9
S
12
1.9
S
12
1.9
S
12
2
S
13
2
S
14
2.1
S
14
2.1
S
14
2.1
S
14
2
S
14
2
S
13
1.9
S
13
1.8
S
13
1.7
S
13
1.8
S
14
2
S
14
Wave Graph
Metric surfscale
Energy kJ
1036
1036
1036
1056
1074
1091
1308
1608
1809
1759
1674
1433
1387
1233
1090
972
1214
1465
Wind (km/h)
25
E
15
ENE
10
NE
5
NNE
5
NNE
10
NE
10
SE
10
SSE
0
ENE
0
NNW
15
SW
15
WSW
10
W
10
WSW
10
SSW
10
S
5
SE
10
E
Wind State
cross-off
cross-off
off
glassy
cross-off
off
cross
cross
glassy
glassy
on
cross-on
cross-on
cross-on
on
cross-on
cross
cross-off
High Tide
3:12PM1.13m
2:21AM1.12m
3:27PM1.10m
2:53AM1.18m
3:45PM1.07m
Low Tide
9:23PM0.32m
9:34AM-0.11m
9:54PM0.32m
10:10AM-0.05m
part cloud
clear
clear
clear
part cloud
clear
clear
clear
cloud
cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:38
 mm
Temp °C
20
20
20
20
20
22
24
22
22
22
21
20
20
21
21
21
21
21
Feels °C
18
19
21
22
21
23
25
22
25
25
21
20
21
23
23
23
23
22
  • 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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