The highest day temperature in March 2026 was 87°F. The lowest night temperature was 70°F. The average values for day and night temperatures during March were 82.9°F и 73.4°F respectivly.

The average sea surface temperature in March 2026 for Rio das Ostras was 82.0°F. The maximum and minimum values were 79.2°F and 84.2°F respectively.

Most of the days in March are cloudy but you can also expect sunny or gloomy days.

Precipitation total in March for Rio das Ostras is 1.3 in.

The average wind speed in March is 7.1 mph. It makes March one of the most windless months of the year for Rio das Ostras.

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 Rio das Ostras in March is 6.9 hours.