Measurements:
°C
°F
CURRENT WEATHER
20:47
Ilhabela
70°F
SW 6 mph
Feels like: 70°F
Precip: 44%
World Resorts Brazil Ilhabela Weather

7 Day Weather Forecast

09.28
mon
DAY
82°F
N 6 mph
precip
12%
NIGHT
70°F
SW 2 mph
precip
44%
09.29
tue
DAY
86°F
W 4 mph
precip
4%
NIGHT
72°F
S 7 mph
precip
58%
09.30
wed
DAY
76°F
NE 10 mph
precip
23%
NIGHT
70°F
SE 2 mph
precip
56%
10.01
thu
DAY
78°F
SW 3 mph
precip
24%
NIGHT
68°F
N 2 mph
precip
50%
10.02
fri
DAY
66°F
N 4 mph
precip
73%
NIGHT
64°F
W 2 mph
precip
78%
10.03
sat
DAY
66°F
NE 2 mph
precip
90%
NIGHT
66°F
S 3 mph
precip
39%
10.04
sun
DAY
86°F
N 1 mph
precip
3%
NIGHT
68°F
S 6 mph
precip
38%

Ilhabela Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Ilhabela was 21.5°F. The maximum and minimum values were 20.4°F and 22.2°F respectively.

Ilhabela on the Weather Map

Best Time to Visit Ilhabela
The most sunny months:
July 18 days
August 15 days
June 14 days
The most warm months:
March 84.3 °F
February 84.2 °F
January 83.6 °F
Warmest sea temperature:
February 84.9 °F
March 83.6 °F
January 83.2 °F
The most cold months:
June 74.9 °F
July 75.2 °F
May 76.4 °F
The most rainy months:
December 7 days
January 7 days
February 6 days
The most windy months:
October 5 mph
September 5 mph
August 4 mph
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