The highest day temperature in April 2025 was 62°F. The lowest night temperature was 24°F. The average values for day and night temperatures during April were 45.6°F и 36.7°F respectivly.

The average sea surface temperature in April 2025 for Porvoo was 36.7°F. The maximum and minimum values were 29.8°F and 43.0°F respectively.

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

Precipitation total in April for Porvoo is 1.4 in. It makes april one of the least rainy months of the year.

The average wind speed in April is 10.6 mph. It makes April one of the most windless months of the year for Porvoo.

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 Porvoo in April is 6.6 hours.