The highest day temperature in October 2025 was 81°F. The lowest night temperature was 66°F. The average values for day and night temperatures during October were 75.3°F и 71.2°F respectivly.

The average sea surface temperature in October 2025 for Cabo Frio was 72.0°F. The maximum and minimum values were 69.4°F and 74.2°F respectively.

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

Precipitation total in October for Cabo Frio is 1.6 in.

The average wind speed in October is 10.2 mph. It makes October one of the most windy months of the year for Cabo Frio.

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 Cabo Frio in October is 4.9 hours.