The highest day temperature in October 2025 was 91°F. The lowest night temperature was 54°F. The average values for day and night temperatures during October were 72.9°F и 62.1°F respectivly.

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

Precipitation total in October for Blumenau is 2.4 in. It makes october one of the most rainy months of the year.

The average wind speed in October is 3.2 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 Blumenau in October is 2.6 hours.