The highest day temperature in January 2026 was 92°F. The lowest night temperature was 67°F. The average values for day and night temperatures during January were 83.7°F и 73.1°F respectivly.

The average sea surface temperature in January 2026 for Ilhabela was 85.0°F. The maximum and minimum values were 83.4°F and 86.2°F respectively.

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

Precipitation total in January for Ilhabela is 3.2 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 4.0 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 January is 5.1 hours.