The highest day temperature in October 2025 was 89°F. The lowest night temperature was 59°F. The average values for day and night temperatures during October were 75.3°F и 66.8°F respectivly.

The average sea surface temperature in October 2025 for Ilhabela was 73.1°F. The maximum and minimum values were 69.8°F and 75.2°F respectively.

Most of the days in October are gloomy but you can also expect sunny days.

Precipitation total in October for Ilhabela is 2.1 in.

The average wind speed in October is 5.2 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ilhabela in October is 4.6 hours.