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Surf Forecasts:

Lopes Mendes (Ilha Grande) surf break

Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 8 pm Thursday 20 Nov 2025 -03
Forecast update in hr  min  s Forecast update imminent
Lopes Mendes (Ilha Grande) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lopes Mendes (Ilha Grande) sea temperature is
22.4° C
 (Which is 1.0°C colder than average for this time of year)

How big are the waves at Lopes Mendes (Ilha Grande) today?

The current surf forecast for Lopes Mendes (Ilha Grande) at 12AM is: 2.3m 16s primary swell from a South direction (forecast issued at 08:00pm November 20). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 4.

Time (-03) & DateWave HeightWave Period
Morning (21 Nov)7ft (2.2m)14s
Afternoon (21 Nov)5.5ft (1.7m)13s
Evening (21 Nov)5ft (1.5m)12s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thu
20
Friday
21
Saturday
22
Sunday
23
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
4
3
4
4
4
4
3
2
2
3
3
3
2
1
0
0
1
1
1
1
1
0
0
0
Wave Height (m) & direction (?)
1.3
S
2.2
S
2.3
S
2.4
S
2.3
S
2.2
S
2.1
S
1.7
S
1.6
S
1.5
S
1.3
S
1.2
S
1.2
S
1.1
S
1
S
1
S
0.9
S
0.9
S
0.8
S
0.8
S
0.7
S
0.7
S
0.7
S
0.7
S
Period(s) (?)171616151414131313121212121212121211111111111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)992249625242445212118071510956822679513453425344280280216202157151114112108102
Wind
(km/h)
15
E
20
E
20
ENE
20
NE
15
NE
15
E
20
ESE
20
E
15
ENE
10
NE
5
N
5
N
5
NNE
5
SE
15
SSW
20
SW
10
WSW
10
WNW
10
WNW
5
NW
5
WSW
5
W
15
S
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offoffoffcross-
off		cross-
off		cross-
off		cross-
off		offglasscross-
off		offcrossononcross-
on		cross-
on		cross-
on		glassglasscross-
on		cross-
on		cross
High Tide
/ height (m)
2:51AM
1.11
2:34PM
1.00
3:23AM
1.08
3:03PM
0.99
3:56AM
1.04
Low Tide
/ height (m)
8:52PM
0.08
9:28AM
0.33
9:25PM
0.08
10:03AM
0.37
10:03PM
0.11
10:43AM
0.42
Thu
20
Friday
21
Saturday
22
Sunday
23
Sunrise----5:01-------5:01-------5:01---
Sunset6:21-------6:21-------6:22-------
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
thunderstorm
Rain (mm)
-----------------------1
Temp. °C212020191820212121212121222523232222212121222323
Feels °C (?)201818171619191920222222232623232424232323242424
  • 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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View detailed surf forecast for Lopes Mendes (Ilha Grande) at:
surf-forecast.com

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