Lopes Mendes (Ilha Grande) surf break

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

information circle48hr Weather and Surf, issued 8 am Wednesday 20 May 2026 -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
23.6° C
(Which is normal 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 11AM is: 2.2m 14s primary swell from a South direction (forecast issued at 08:00am May 20). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (20 May)7.5ft (2.3m)15s
Afternoon (20 May)7ft (2.1m)14s
Evening (20 May)6ft (1.8m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 24mm), heaviest during Thu morning. Warm (max 22°C on Wed afternoon, min 19°C on Thu night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Sat
23
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
12 AM
3 AM
Rating
(10 max)
2
3
2
1
1
3
3
2
2
2
1
3
4
5
5
5
4
4
4
4
3
4
4
4
Wave
Height (m)
Direction
Period (s)
2.3
S
16
2.3
S
15
2.2
S
14
2.1
S
14
2
S
14
1.8
S
13
1.8
S
13
1.6
S
13
2
S
14
2.1
S
15
2.3
S
15
2.5
S
16
2.5
S
16
3
S
15
3
S
14
3
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.3
S
14
2.2
S
14
2.1
S
14
Wave Graph
Metric surfscale
Energy kJ
2529
2215
1945
1735
1444
1121
1094
839
1649
1869
2396
3184
3434
3367
3232
3148
2805
2491
2602
2581
2541
2125
1945
1772
Wind (km/h)
10
WSW
10
WSW
15
WSW
20
SW
15
SW
10
SSW
10
S
10
SSW
10
SSW
15
S
20
S
15
SSW
10
SSW
5
SSW
0
WNW
0
WNW
5
NW
5
NNW
5
E
15
ESE
20
E
20
ENE
20
NE
20
NE
on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
glassy
glassy
glassy
glassy
glassy
cross-off
cross-off
cross-off
off
off
off
High Tide
3:53AM0.93m
5:24PM0.91m
4:33AM0.91m
6:23PM0.82m
9:54PM0.82m
5:22AM0.88m
10:55PM0.82m
Low Tide
11:51AM0.11m
00:45AM0.60m
12:51PM0.18m
8:08PM0.80m
1:42AM0.64m
1:57PM0.23m
2:44AM0.63m
light rain
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
clear
clear
cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:24
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:21
5:20
5:20
5:20
1
2
2
2
3
3
3
4
2
1
1
1
Temp °C
21
21
21
22
21
21
21
20
20
20
20
20
20
19
19
19
19
20
20
21
21
21
21
20
22
22
21
21
21
22
23
21
21
20
19
19
20
20
21
21
20
21
21
21
20
20
20
19
Swell 1
Height (m)
Direction
Period (s)
2.3
S
16
2.3
S
15
2.2
S
14
2.1
S
14
2
S
14
1.8
S
13
1.8
S
13
1.6
S
13
2
S
14
2.1
S
15
2.3
S
15
2.5
S
16
2.5
S
16
3
S
15
3
S
14
3
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.3
S
14
2.2
S
14
2.1
S
14
Energy kJ
2529
2215
1945
1735
1444
1121
1094
839
1649
1869
2396
3184
3434
3367
3232
3148
2805
2491
2602
2581
2541
2125
1945
1772
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
12
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.8
S
16
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
Energy kJ
6
5
5
5
5
330
5
5
5
5
5
5
5
5
6
6
6
6
6
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.2
E
8
0.2
E
8
0.3
E
9
Energy kJ
5
5
5
14
Wind waves
Height (m)
Direction
Period (s)
0.6
SSE
5
0.2
E
9
0.9
E
4
1.1
E
5
1.1
E
6
Energy kJ
16
6
28
56
74
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
3
3
3
3
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
Distance (km)
20
20
20
65
20
20
20
20
20
97
97
20
20
0
0
0
0
0
0
0
58
0
0
0
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
4
4
4
4
4
4
Best forecast wave conditions in Brazil
Rating
(10 max)
4
4
4
4
3
3
4
5
5
4
4
5
5
5
5
5
5
5
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
5
5
5
5
4
5
5
7
7
7
6
5
5
5
5
6
  • 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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