Lopes Mendes (Ilha Grande) Surf Break

Lat Long: 23.18° S 44.12° W

Lopes Mendes (Ilha Grande) 48 hour detailed Surf Forecast

Issued: 2 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lopes Mendes (Ilha Grande) sea temperature is
22.9°C
1.7° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 3.5ft (1.1m), 11s period with SSE swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 3ft (0.9m), 11s period with SSE swell.
  • Evening surf: Evening surf (04 Sep, local time) - 2.5ft (0.8m), 11s period with SSE swell.

The current surf forecast for Lopes Mendes (Ilha Grande) at 7AM is: 1.2m 11s primary swell from a South-southeast direction (forecast issued at 02:00am September 04). An open ocean swell of 1.1m 8s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (-03) & DateWave HeightWave Period
Morning (04 Sep)3.5ft (1.1m)11s
Afternoon (04 Sep)3ft (0.9m)11s
Evening (04 Sep)2.5ft (0.8m)11s

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


Short Range Forecast

Heavy rain (total 28mm), heaviest during Sun afternoon. Warm (max 24°C on Fri morning, min 17°C on Sun afternoon). Winds increasing (calm on Sat afternoon, fresh winds from the SSW by Sat night).

Friday
4
Saturday
5
Sunday
6
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
2
2
2
2
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Wave
Height (m)
Direction
Period (s)
1.5
SSE
11
1.4
SSE
11
1.2
SSE
11
1.1
SSE
11
1
SSE
11
0.9
SSE
11
0.9
SSE
11
0.8
SSE
11
0.8
SSE
10
0.7
SSE
10
0.6
SSE
10
0.5
SSE
10
0.5
SSE
10
0.4
SSE
10
0.4
SSE
10
0.4
SSE
10
0.4
SSW
10
0.7
S
10
1.2
SSW
10
1.9
SSW
7
2
S
8
2.1
S
8
2.2
S
8
2.2
S
8
Wave Graph
Metric surfscale
Energy kJ
540
471
337
280
259
210
167
128
121
92
80
57
57
39
38
38
35
96
258
373
526
537
588
597
Wind (km/h)
15
NNE
15
N
10
NNE
5
NW
5
S
15
SSW
15
SW
10
WSW
20
SW
5
W
5
W
5
NNE
20
SSW
5
ENE
10
ENE
25
SW
15
WSW
20
WSW
30
SSW
20
SSW
25
SSW
30
SSW
25
S
20
SSW
Wind State
cross-off
cross-off
cross-off
glassy
glassy
cross-on
on
cross-on
on
cross-on
cross-on
cross-off
on
glassy
cross-off
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
7:14AM0.80m
11:40AM0.80m
6:38PM0.68m
11:44PM0.55m
12:37PM0.93m
8:36PM0.62m
00:19AM0.64m
1:17PM1.03m
Low Tide
2:09AM0.38m
9:26AM0.76m
3:44PM0.59m
10:32PM0.54m
3:48AM0.35m
5:29PM0.56m
9:50PM0.61m
5:16AM0.26m
6:33PM0.48m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
clear
clear
rain showers
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>
6:03
6:03
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:46
5:46
 mm
1
1
2
3
2
4
4
2
Temp °C
22
21
21
23
24
24
22
21
21
20
20
21
21
21
22
21
21
21
19
19
19
18
17
17
Feels °C
21
20
21
24
25
23
22
22
21
22
21
23
21
24
23
20
22
21
16
17
17
14
13
15
  • 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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