The highest day temperature in April 2026 was 60°F. The lowest night temperature was 24°F. The average values for day and night temperatures during April were 45.4°F и 33.1°F respectivly.

The average sea surface temperature in April 2026 for Sundsvall was 35.1°F. The maximum and minimum values were 30.4°F and 40.8°F respectively.

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

Precipitation total in April for Sundsvall is 0.9 in. It makes april the least rainy month of the year.

The average wind speed in April is 7.2 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 Sundsvall in April is 7.1 hours.