April weather forecastBonn, Germany
April
Weather in April
Bonn, Germany, continues its gradual transition from winter to spring weather during the month of April. The climate is more temperate now, with the longer days and increased daylight hours enhancing the pleasant atmosphere. The frequency of rainfall decreases, but the city continues to receive rainy days approximately 12 times this month, ensuring that the greenery stays well-nourished. The average high temperatures jump up to 15.1°C (59.2°F), making this a delightful period for outdoor activity. Meanwhile, the UV index, measures at a level close to 3, prompting the need for sun protection on the brighter days.Temperature
As Bonn transitions into April, the average high-temperature is observed to rise from a frosty 9.7°C (49.5°F) in March to a moderate 15.1°C (59.2°F). Bonn, in April, witnesses an average low-temperature of 5°C (41°F).Humidity
In April, the average relative humidity in Bonn, Germany, is 74%.Rainfall
April and September are months with the least rain when the rain falls for 11.8 days and typically aggregates up to 17mm (0.67") of rain.Snowfall
In Bonn, Germany, snow does not fall in April through October.Daylight
The average length of the day in April is 13h and 51min.On the first day of the month, sunrise is at 07:06 and sunset at 20:04. On the last day of April, sunrise is at 06:06 and sunset at 20:51 CEST.
Sunshine
In April, the average sunshine is 9h.UV index
In April, the average daily maximum UV index in Bonn is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 during April leads to these advisories:
Act with care - The need to guard against sun damage is communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Bonn, Germany
- Average high temperature in April: 15.1°C
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).
- Average low temperature in April: 5°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in April
Bonn, Germany
- Average pressure in April: 1015.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in April
Bonn, Germany
- Average wind speed in April: 10.2km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in April
Bonn, Germany
- Average humidity in April: 74%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in April
Bonn, Germany
- Average rainfall in April: 17mm
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).
Average rainfall days in April
Bonn, Germany
- Average rainfall days in April: 11.8 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in April
Bonn, Germany
- Average snowfall in April: 0mm
The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Bonn, Germany
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Bonn, Germany
- Average daylight in April: 13h and 48min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in April
Bonn, Germany
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).
Average UV index in April
Bonn, Germany
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Bonn, Germany
- Average cloud cover in April: 39
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in April
Bonn, Germany
- Average visibility in April: 9km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
