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 Aug 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.1° C
1.1° 

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 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 0.5ft (0.2m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 0.5ft (0.1m), 8s period with SE swell.
  • Evening surf: Evening surf (19 Aug, local time) - 0.5ft (0.1m), 13s period with SE swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 5AM is: 0.2m 9s primary swell from a South direction (forecast issued at 08:00pm August 18). An open ocean swell of 1.0m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (19 Aug)0.5ft (0.2m)9s
Afternoon (19 Aug)0.5ft (0.1m)8s
Evening (19 Aug)0.5ft (0.1m)13s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Wed morning, min 20°C on Fri afternoon). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Wave
Height (m)
Direction
Period (s)
0.4
SSE
9
0.3
S
9
0.3
S
9
0.2
S
9
0.2
S
9
0.2
S
9
0.2
S
10
0.1
S
10
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.2
S
12
0.3
S
12
0.3
S
11
Wave Graph
Metric surfscale
Energy kJ
29
15
15
7
7
7
8
3
7
7
7
6
6
6
6
11
24
21
Wind (km/h)
10
NE
5
NE
10
NNE
10
N
10
NNE
5
NE
10
E
10
ESE
10
NE
5
ENE
5
NNW
5
W
5
W
5
WSW
10
S
10
SSE
10
NE
5
NE
Wind State
off
off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
glassy
glassy
cross-on
glassy
glassy
cross-on
cross-on
off
off
High Tide
5:22PM0.90m
5:59AM0.89m
5:51PM0.83m
6:56AM0.77m
6:25PM0.74m
Low Tide
00:19AM0.35m
1:00PM0.53m
1:18AM0.40m
2:30PM0.62m
clear
clear
clear
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>
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:40
5:42
 mm
Temp °C
24
24
25
24
24
26
28
28
24
24
23
22
21
22
22
22
22
22
Feels °C
25
25
25
24
24
26
27
27
25
26
24
23
22
23
23
23
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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