The highest day temperature in April 2025 was 80°F. The lowest night temperature was 33°F. The average values for day and night temperatures during April were 63.0°F и 45.5°F respectivly.

You can expect various weather conditions during April. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in April for Bonn is 1.3 in. It makes april one of the least rainy months of the year.

The average wind speed in April is 7.0 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 Bonn in April is 7.4 hours.