Measurements:
°C
°F
CURRENT WEATHER
18:32
Ilhabela
62°F
SW 2 mph
Feels like: 62°F
Precip: 46%
World Resorts Brazil Ilhabela Weather

7 Day Weather Forecast

09.08
tue
DAY
64°F
NE 2 mph
precip
33%
NIGHT
62°F
SW 2 mph
precip
32%
09.09
wed
DAY
68°F
NE 2 mph
precip
88%
NIGHT
68°F
S 6 mph
precip
38%
09.10
thu
DAY
72°F
SW 4 mph
precip
43%
NIGHT
70°F
SW 6 mph
precip
38%
09.11
fri
DAY
78°F
NE 1 mph
precip
18%
NIGHT
80°F
SW 10 mph
precip
6%
09.12
sat
DAY
76°F
NE 15 mph
precip
56%
NIGHT
62°F
N 1 mph
precip
42%
09.13
sun
DAY
62°F
W 4 mph
precip
80%
NIGHT
62°F
W 6 mph
precip
57%
09.14
mon
DAY
64°F
SW 9 mph
precip
56%
NIGHT
64°F
SW 6 mph
precip
66%

Ilhabela Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Ilhabela was 21.3°F. The maximum and minimum values were 20.6°F and 22.2°F respectively.

Ilhabela on the Weather Map

Best Time to Visit Ilhabela
The most sunny months:
July 18 days
September 15 days
August 15 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
more details