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 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.8°C
1.6° 

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 Sep):

  • Morning surf: Morning surf (09 Sep, local time) - 3.5ft (1.0m), 10s period with S swell.
  • Afternoon surf: Afternoon surf (09 Sep, local time) - 3.5ft (1.1m), 7s period with ESE swell.
  • Evening surf: Evening surf (09 Sep, local time) - 2.5ft (0.7m), 10s period with SSE swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 1PM is: 1.1m 7s primary swell from a East-southeast direction and 0.8m 10s secondary swell from a South direction (forecast issued at 08:00am September 09). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (09 Sep)3.5ft (1.0m)10s
Afternoon (09 Sep)3.5ft (1.1m)7s
Evening (09 Sep)2.5ft (0.7m)10s

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


Short Range Forecast

Heavy rain (total 56mm), heaviest during Thu night. Warm (max 27°C on Fri night, min 20°C on Wed morning). Winds increasing (calm on Thu morning, strong winds from the SW by Fri night).

Wednesday
9
Thursday
10
Friday
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)
1
2
1
0
2
1
2
2
2
2
2
2
1
0
3
3
3
3
2
1
2
2
Wave
Height (m)
Direction
Period (s)
1
S
10
1
S
10
0.8
SSE
10
1.1
ESE
7
1
ESE
7
0.7
SSE
10
0.8
S
13
0.9
S
13
1.1
S
12
1.1
S
12
1.1
S
12
1.1
S
12
1.1
S
13
1
S
13
0.9
S
16
0.9
S
15
1.2
S
14
1.2
S
14
1.1
S
13
1.1
S
13
1
S
13
1
S
12
Wave Graph
Metric surfscale
Energy kJ
198
198
140
140
117
100
212
252
347
342
342
359
389
311
401
357
594
546
423
411
319
295
Wind (km/h)
5
NW
5
WSW
5
S
10
SW
5
NNE
10
ENE
20
NE
5
N
5
NW
5
N
15
NNE
15
NE
5
SE
20
WSW
10
NNW
20
NE
20
NNE
5
N
5
ESE
10
SE
15
ENE
15
NNE
Wind State
cross
glassy
cross-on
on
cross-off
off
off
cross-off
cross-off
glassy
off
off
cross
cross-on
cross-off
off
off
cross-off
cross-off
cross
off
cross-off
High Tide
2:24PM1.13m
1:35AM1.11m
2:34PM1.12m
2:04AM1.19m
2:47PM1.11m
Low Tide
7:54AM-0.06m
8:20PM0.30m
8:32AM-0.08m
8:50PM0.25m
9:07AM-0.05m
clear
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
rain showers
rain showers
mod rain
heavy rain
light rain
light rain
cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:47
5:49
 mm
1
1
2
5
1
1
1
4
4
7
3
1
8
13
1
2
Temp °C
20
21
20
20
20
20
21
21
21
22
22
22
22
21
21
23
22
23
25
24
26
27
Feels °C
21
23
22
21
22
22
21
23
24
26
24
23
25
22
23
24
22
25
28
26
28
29
  • 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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