Weather in Köln in May

General weather information about Köln

Average annual temperature is 12.1 °C

Absolute maximum temperature: 33.4 °C

Absolute minimum temperature: -4.7 °C

Number of sunny days: 112 days

Number of rainy days: 251 days

Number of snow days: 2 days

Look at detailed online map of Köln

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

Köln air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.5	14.9	17.0	20.3	24.2	30.5	33.4	30.3	30.3	27.2	15.4	12.1
Average daytime temperature (°C)	7.3	8.6	10.8	13.2	18.9	25.6	24.1	23.0	23.9	17.7	10.0	8.2
Average temperature (°C)	5.1	5.2	7.1	8.8	13.9	20.5	19.5	18.6	18.6	13.9	7.6	6.1
Average night temperature (°C)	2.7	2.2	3.6	4.3	8.7	14.7	15.0	14.5	13.8	10.4	5.1	3.7
Absolute minimum temperature (°C)	-4.7	-4.0	-4.1	-2.3	1.9	10.7	11.4	10.8	7.6	2.5	-2.0	-3.4

Köln 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	8.0
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)	3.1	4.4	5.2	7.8	11.2	13.1	11.0	10.1	9.8	5.7	3.8	2.3
Precipitation (mm)	93	26	145	99	71	87	133	126	66	99	139	103
Sunny days	8	13	4	7	13	18	6	5	17	11	2	8
Rainy days	22	15	27	23	18	12	25	26	13	20	28	22
Snow days	1	0	0	0	0	0	0	0	0	0	0	1

Köln - weather forecast by months

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

Best time to visit Köln:

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

May — 11.2(h)
June — 13.1(h)
July — 11.0(h)
August — 10.1(h)
September — 9.8(h)

Months with the longest average daylight duration in Köln:

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

The largest precipitation sum in Köln is at

March — 145(mm)

July — 133(mm)

August — 126(mm)

November — 139(mm)

Weather forecast in the closest to Köln admin centers