The highest day temperature in April 2025 was 50°F. The lowest night temperature was 25°F. The average values for day and night temperatures during April were 40.2°F и 36.2°F respectivly.

The average sea surface temperature in April 2025 for Kotka was 36.5°F. The maximum and minimum values were 33.0°F and 40.2°F respectively.

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

Precipitation total in April for Kotka is 1.3 in. It makes april the least rainy month of the year.

The average wind speed in April is 10.7 mph. It makes April one of the most windless months of the year for Kotka.

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 Kotka in April is 6.2 hours.