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Bonn in April sees moderate daytime temperatures of 16°C (61°F) and nighttime lows of 6°C (43°F). With just 57 mm (2.2 in) of rainfall on average, it's the driest month of the year.
If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Bonn.
Pick a month to see the average temperature, rainfall and sunshine in Bonn - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Bonn typically rise from around 13°C (55°F) at the start of April to approximately 16°C (61°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 7°C (45°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Bonn spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Bonn from 1976 through 2026.
Find out more about the weather in Germany and which places have the best travel conditions in this month. See all of Germany in April →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for changing conditions in Bonn in April. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. Bring sunglasses since you'll have some sunny periods throughout the month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Bonn climate overview or explore weather in Germany.
Where to go in April - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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