Best year time to visit Bonn

General weather information about Bonn

Average annual temperature is 12.1 °C

Absolute maximum temperature: 34.0 °C

Absolute minimum temperature: -4.7 °C

Number of sunny days: 112 days

Number of rainy days: 249 days

Number of snow days: 4 days

Look at detailed online map of Bonn

* Weather data for Bonn Germany is based on climate observations for 2026 year

Bonn air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.2	15.4	17.5	20.3	24.4	30.6	34.0	30.9	31.4	27.5	15.3	12.1
Average daytime temperature (°C)	7.2	8.7	11.0	13.2	19.0	25.5	24.1	23.2	24.1	17.8	10.0	8.2
Average temperature (°C)	5.0	5.1	7.2	8.7	13.7	20.3	19.4	18.6	18.6	13.9	7.6	6.2
Average night temperature (°C)	2.6	1.7	3.7	4.1	8.4	14.2	14.8	14.5	13.5	10.3	5.1	3.8
Absolute minimum temperature (°C)	-4.7	-4.7	-4.3	-3.5	2.8	9.4	10.9	10.3	7.7	1.9	-2.3	-3.5

Bonn monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	10.0	12.0	14.0	16.0	16.0	16.0	15.0	13.0	11.0	9.0	8.0
Daylight mean duration (h)	8.5	10.0	11.9	13.8	15.5	16.4	16.0	14.5	12.6	10.7	9.0	8.1
Daylight minimum duration (h)	8.0	9.0	10.0	12.0	14.0	16.0	15.0	13.0	11.0	9.0	8.0	7.0
Sunshine mean duration (h)	2.8	4.7	5.0	7.7	10.6	13.2	10.6	9.5	9.5	5.9	3.5	2.4
Precipitation (mm)	94	28	142	91	84	66	139	124	54	99	147	90
Sunny days	9	13	3	7	11	20	6	7	17	12	2	5
Rainy days	21	15	27	23	20	10	25	24	13	19	28	24
Snow days	1	0	1	0	0	0	0	0	0	0	0	2

Bonn - weather forecast by months

Bonn weather in january Bonn weather in february Bonn weather in march Bonn weather in april Bonn weather in may Bonn weather in june Bonn weather in july Bonn weather in august Bonn weather in september Bonn weather in october Bonn weather in november Bonn weather in december

Best time to visit Bonn:

The best time to visit Bonn during the most sunny months:

May — 10.6(h)
June — 13.2(h)
July — 10.6(h)
August — 9.5(h)
September — 9.5(h)

Months with the longest average daylight duration in Bonn:

May — 15.5(h)
June — 16.4(h)
July — 16.0(h)

The largest precipitation sum in Bonn is at

March — 142(mm)

July — 139(mm)

August — 124(mm)

November — 147(mm)

Weather forecast in the closest to Bonn admin centers