The highest day temperature in May 2025 was 91°F. The lowest night temperature was 55°F. The average values for day and night temperatures during May were 79.6°F и 61.0°F respectivly.

The average sea surface temperature in May 2025 for Ubatuba was 78.2°F. The maximum and minimum values were 75.6°F and 80.2°F respectively.

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in May for Ubatuba is 1.9 in. It makes may one of the least rainy months of the year.

The average wind speed in May is 3.6 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 Ubatuba in May is 6.2 hours.