The highest day temperature in April 2026 was 90°F. The lowest night temperature was 67°F. The average values for day and night temperatures during April were 84.1°F и 72.0°F respectivly.

The average sea surface temperature in April 2026 for Rio das Ostras was 79.8°F. The maximum and minimum values were 78.0°F and 83.2°F respectively.

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

Precipitation total in April for Rio das Ostras is 0.9 in.

The average wind speed in April is 7.0 mph. It makes April the most windless month 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 April is 6.1 hours.