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 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.8° C
1.8° 

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 (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 5.5ft (1.7m), 14s period with S swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 5ft (1.6m), 13s period with S swell.
  • Evening surf: Evening surf (09 Aug, local time) - 4.5ft (1.4m), 13s period with S swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 2PM is: 1.6m 13s primary swell from a South direction and 0.4m 7s secondary swell from a East-southeast direction, 0.8m 4s secondary swell from a Southwest direction (forecast issued at 08:00am August 09). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (09 Aug)5.5ft (1.7m)14s
Afternoon (09 Aug)5ft (1.6m)13s
Evening (09 Aug)4.5ft (1.4m)13s

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


Short Range Forecast

Heavy rain (total 24mm), heaviest during Mon night. Warm (max 23°C on Sun morning, min 18°C on Mon night). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
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)
3
0
0
0
0
2
2
3
3
3
3
3
2
2
3
3
3
3
3
3
3
3
Wave
Height (m)
Direction
Period (s)
1.7
S
14
1.7
S
14
1.6
S
13
1.6
S
13
1.5
S
13
1.4
S
13
1.8
S
12
2
S
12
2.1
S
11
2.1
S
12
2.2
S
12
2.2
S
13
2.3
S
13
2.4
S
13
2.3
S
12
2.2
S
12
2.1
S
13
2.2
S
13
2.3
S
13
2.5
S
13
2.5
S
13
2.4
S
13
Wave Graph
Metric surfscale
Energy kJ
1178
1097
902
875
747
613
980
1122
1107
1248
1483
1531
1726
1850
1621
1462
1417
1583
1729
2043
1980
1793
Wind (km/h)
20
N
25
SW
20
SW
20
SSW
20
SSE
15
SE
10
SE
15
SSE
15
SE
15
SE
10
SE
15
SSE
20
SSE
20
SSE
15
SE
15
SE
15
ESE
20
ESE
20
ESE
20
E
20
E
20
E
Wind State
cross-off
on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
1:56PM1.08m
00:58AM0.82m
2:29PM1.14m
1:23AM0.92m
2:54PM1.15m
Low Tide
6:31AM0.16m
7:33PM0.39m
7:26AM0.04m
8:14PM0.35m
8:12AM-0.06m
8:50PM0.33m
clear
clear
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:37
 mm
1
1
1
1
1
1
1
1
2
3
2
1
2
2
1
1
1
1
Temp °C
29
23
22
22
21
21
20
20
20
20
20
20
19
19
18
18
19
18
19
19
19
19
Feels °C
27
23
22
23
21
22
21
21
21
20
21
20
18
18
17
17
18
16
18
18
17
17
  • 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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