Lopes Mendes (Ilha Grande) Surf Break

Lopes Mendes (Ilha Grande) 48 hour detailed Surf Forecast

Lat Long: 23.18° S 44.12° W

Issued: 2 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.5° C

Normal for this time of year

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 (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 3ft (0.9m), 15s period with S swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 6ft (1.8m), 14s period with S swell.
  • Evening surf: Evening surf (18 Jun, local time) - 6.5ft (2.0m), 13s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 7AM is: 1.1m 11s primary swell from a South direction and 0.8m 15s secondary swell from a South direction, 0.6m 5s secondary swell from a South direction (forecast issued at 02:00am June 18). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (18 Jun)3ft (0.9m)15s
Afternoon (18 Jun)6ft (1.8m)14s
Evening (18 Jun)6.5ft (2.0m)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

Mostly dry. Warm (max 23°C on Fri afternoon, min 17°C on Thu night). Winds increasing (calm on Sat morning, fresh winds from the SW by Sat night).

Thursday
18
Friday
19
Saturday
20
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)
0
1
1
2
3
3
4
4
4
4
4
4
4
4
3
4
3
3
3
2
0
0
0
1
Wave
Height (m)
Direction
Period (s)
1.4
S
11
1.2
S
11
1.1
S
11
0.9
S
15
1.6
S
14
1.8
S
14
1.9
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2.1
S
13
1.8
S
13
1.7
S
13
1.5
S
13
1.4
S
13
1.2
S
13
1.1
S
12
1
S
12
0.9
S
12
0.9
S
12
0.8
S
12
Wave Graph
Metric surfscale
Energy kJ
475
338
290
358
1030
1225
1266
1380
1412
1412
1391
1346
1391
1567
1141
987
757
640
448
353
287
225
221
169
Wind (km/h)
15
SW
15
SW
15
SW
10
SW
10
SW
10
S
5
ESE
10
NE
15
NNE
15
NE
20
NNE
15
NNE
10
NE
15
E
20
ENE
15
NE
15
NNE
10
N
10
N
5
N
15
SSW
20
SW
15
SW
10
W
Wind State
on
on
on
on
on
cross-on
cross-off
off
off
off
off
off
off
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross-on
on
on
cross-on
High Tide
3:50AM1.01m
5:18PM0.94m
4:32AM1.01m
5:56PM0.87m
5:18AM0.98m
6:38PM0.81m
Low Tide
11:41AM0.04m
00:13AM0.54m
12:30PM0.12m
00:56AM0.55m
1:21PM0.21m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:19
5:19
 mm
Temp °C
20
19
19
19
20
19
19
19
19
18
17
18
21
23
21
21
20
20
20
21
22
21
21
20
Feels °C
18
17
17
18
19
18
19
18
18
16
14
16
20
21
19
20
19
20
19
21
22
20
21
21
Swell 1
Height (m)
Direction
Period (s)
1.4
S
11
1.2
S
11
1.1
S
11
1.2
S
11
1.6
S
14
1.8
S
14
1.9
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2
S
13
2.1
S
13
1.8
S
13
1.7
S
13
1.5
S
13
1.4
S
13
1.2
S
13
1.1
S
12
1
S
12
0.9
S
12
0.9
S
12
0.8
S
12
Energy kJ
475
338
281
358
1030
1225
1266
1380
1412
1412
1391
1346
1391
1567
1141
987
757
640
448
353
287
225
221
169
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
9
0.6
S
16
0.8
S
15
0.9
S
15
0.4
ESE
9
0.4
ESE
8
0.4
ESE
8
0.4
ESE
8
0.4
ESE
8
0.4
ESE
8
0.4
E
8
0.4
ESE
8
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
0.9
ESE
6
1
ESE
6
1.1
E
7
1
ESE
7
0.9
ESE
7
0.9
ESE
7
0.9
ESE
7
0.7
ESE
7
0.7
ESE
7
Energy kJ
47
185
290
339
25
24
24
24
23
23
22
24
29
33
32
68
75
107
99
82
68
68
52
54
Swell 3
Height (m)
Direction
Period (s)
0.4
S
17
0.5
E
9
0.5
E
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
0.4
ESE
9
0.3
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
Energy kJ
90
41
40
26
25
32
31
29
17
29
29
35
34
33
Wind waves
Height (m)
Direction
Period (s)
0.7
SSW
5
0.6
S
5
0.6
S
5
0.4
NE
3
0.5
NE
3
0.9
ESE
6
1.2
E
6
0.4
NNE
3
0.4
NNE
3
0.4
NNE
3
0.4
NNE
3
0.4
N
3
0.9
SW
4
Energy kJ
25
17
18
2
5
64
106
3
4
3
3
3
21
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
3
3
3
4
4
4
4
4
4
4
4
4
4
3
3
3
2
2
1
1
1
Distance (km)
20
20
20
20
20
59
0
0
0
0
0
0
0
0
58
0
0
0
0
0
65
141
20
20
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
1
2
3
4
4
4
4
4
4
4
4
4
4
4
4
3
3
2
3
2
2
Best forecast wave conditions in Brazil
Rating
(10 max)
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
2
1
2
2
Header Global
Rating
(10 max)
5
9
9
9
5
5
5
5
6
6
6
6
7
4
4
4
4
4
5
5
9
9
4
9
  • 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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