The highest day temperature in April 2025 was 89°F. The lowest night temperature was 54°F. The average values for day and night temperatures during April were 77.0°F и 63.9°F respectivly.

The average sea surface temperature in April 2025 for Porto Alegre was 76.2°F. The maximum and minimum values were 73.6°F and 82.0°F respectively.

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

Precipitation total in April for Porto Alegre is 1.0 in. It makes april the least rainy month of the year.

The average wind speed in April is 5.8 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 Porto Alegre in April is 6.6 hours.