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 am 23 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.2°C
1.0° 

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 (23 Sep):

  • Morning surf: Morning surf (23 Sep, local time) - 6ft (1.8m), 7s period with S swell.
  • Afternoon surf: Afternoon surf (23 Sep, local time) - 6ft (1.9m), 8s period with S swell.
  • Evening surf: Evening surf (23 Sep, local time) - 7ft (2.2m), 11s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 11AM is: 1.9m 8s primary swell from a South direction (forecast issued at 08:00am September 23). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (23 Sep)6ft (1.8m)7s
Afternoon (23 Sep)6ft (1.9m)8s
Evening (23 Sep)7ft (2.2m)11s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Wed morning. Warm (max 22°C on Fri morning, min 18°C on Wed afternoon). Wind will be generally light.

Wednesday
23
Thursday
24
Friday
25
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
0
2
0
2
4
4
3
4
4
4
3
3
3
4
4
4
4
4
3
3
3
Wave
Height (m)
Direction
Period (s)
1.4
S
6
1.8
S
7
2.1
S
8
1.9
S
8
2.2
S
10
2.2
S
11
2.1
S
11
1.7
SSW
11
1.4
S
15
1.7
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
14
1.8
S
14
1.7
S
14
1.6
S
13
1.4
S
13
1.3
S
13
Wave Graph
Metric surfscale
Energy kJ
119
311
559
470
1055
1075
999
685
846
1179
1705
1614
1686
1433
1412
1252
1175
1263
1083
865
653
546
Wind (km/h)
30
SSW
25
SSW
15
S
25
S
20
SE
15
ESE
15
E
15
ENE
15
ENE
15
ENE
15
E
20
E
20
E
20
ENE
15
NE
15
ENE
15
NE
5
ENE
15
ESE
10
ESE
10
E
10
NE
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
off
High Tide
1:34PM1.10m
1:09AM1.07m
1:55PM1.14m
1:34AM1.15m
2:14PM1.16m
Low Tide
6:58AM0.08m
7:24PM0.30m
7:35AM0.00m
7:55PM0.23m
8:10AM-0.04m
8:27PM0.17m
mod rain
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:52
5:52
 mm
7
5
2
4
3
1
Temp °C
19
19
19
18
18
18
18
18
18
19
19
20
20
20
20
19
19
21
22
21
21
21
Feels °C
16
17
18
15
16
17
17
17
17
18
18
18
18
19
20
18
18
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
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