The highest day temperature in May 2025 was 89°F. The lowest night temperature was 62°F. The average values for day and night temperatures during May were 78.0°F и 67.8°F respectivly.

The average sea surface temperature in May 2025 for Sao Sebastiao was 78.6°F. The maximum and minimum values were 76.2°F and 80.0°F respectively.

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation total in May for Sao Sebastiao is 1.3 in.

The average wind speed in May is 5.4 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 Sao Sebastiao in May is 6.7 hours.