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 18 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 (19 Sep):

  • Morning surf: Morning surf (19 Sep, local time) - 2.5ft (0.8m), 10s period with S swell.
  • Afternoon surf: Afternoon surf (19 Sep, local time) - 2.5ft (0.7m), 9s period with S swell.
  • Evening surf: Evening surf (19 Sep, local time) - 2ft (0.6m), 9s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 3AM is: 1.6m 6s primary swell from a East-southeast direction and 0.9m 10s secondary swell from a South direction (forecast issued at 08:00pm September 18). The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (19 Sep)2.5ft (0.8m)10s
Afternoon (19 Sep)2.5ft (0.7m)9s
Evening (19 Sep)2ft (0.6m)9s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Sun night. Warm (max 32°C on Mon afternoon, min 19°C on Fri night). Winds decreasing (fresh winds from the E on Sat afternoon, calm by Sun morning).

Fri
18
Saturday
19
Sunday
20
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)
1
0
0
1
1
1
0
0
0
0
1
1
1
1
1
0
0
0
Wave
Height (m)
Direction
Period (s)
1.9
ESE
6
1
S
10
1
S
10
1.6
ESE
6
0.9
S
10
0.8
S
10
0.8
S
10
0.7
S
9
0.7
S
9
0.6
S
9
0.6
S
9
0.4
S
12
0.4
S
12
0.4
S
12
0.6
S
12
0.5
S
12
0.4
S
12
0.4
S
12
Wave Graph
Metric surfscale
Energy kJ
280
206
212
188
156
121
116
85
83
60
58
49
48
46
100
68
43
42
Wind (km/h)
35
E
30
ENE
25
ENE
25
ENE
25
ENE
20
ENE
30
E
35
E
35
E
25
ENE
25
NE
25
NE
25
NE
20
NE
5
SE
10
SW
10
WSW
10
W
Wind State
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
glassy
on
on
cross-on
High Tide
5:35PM0.76m
12:03PM0.77m
6:33PM0.66m
12:26PM0.86m
Low Tide
2:20AM0.42m
4:17PM0.64m
4:13AM0.39m
5:45PM0.56m
cloud
cloud
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:51
 mm
1
2
Temp °C
20
20
20
19
20
21
21
22
21
21
21
21
20
22
25
24
22
22
Feels °C
16
17
18
17
18
20
18
19
17
19
19
19
17
20
27
24
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
How to use the Wavefinder 

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