Best year time to visit Sumy

General weather information about Sumy

Average annual temperature is 7.0 °C

Absolute maximum temperature: 32.2 °C

Absolute minimum temperature: -29.4 °C

Number of sunny days: 149 days

Number of rainy days: 165 days

Number of snow days: 51 days

Look at detailed online map of Sumy

* Weather data for Sumy Russia is based on climate observations for 2026 year

Sumy air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	5.2	3.2	16.4	28.3	28.5	26.0	32.2	32.2	25.5	23.3	15.4	2.8
Average daytime temperature (°C)	-6.6	-4.7	6.8	15.7	20.3	21.1	24.8	26.6	20.9	10.4	3.9	-3.5
Average temperature (°C)	-10.1	-7.1	2.8	9.4	14.9	16.1	19.9	20.8	14.6	6.4	1.5	-6.0
Average night temperature (°C)	-13.7	-10.4	-1.7	2.8	8.6	10.2	14.6	14.6	8.6	2.3	-1.5	-8.4
Absolute minimum temperature (°C)	-29.4	-18.9	-11.6	-4.5	-0.2	5.3	9.9	5.9	5.3	-3.6	-12.1	-19.9

Sumy monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	8.0	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)	8.3	9.9	11.9	14.0	15.8	16.8	16.3	14.7	12.7	10.6	8.7	7.7
Daylight minimum duration (h)	7.0	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)	3.8	2.1	6.7	9.5	11.4	11.0	11.2	12.4	10.5	4.5	2.5	0.7
Precipitation (mm)	29	41	43	27	45	77	126	20	13	77	105	70
Sunny days	19	6	9	18	16	9	10	19	21	9	9	4
Rainy days	6	4	15	12	15	21	21	12	9	21	14	15
Snow days	6	18	7	0	0	0	0	0	0	1	7	12

Sumy - weather forecast by months

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

Best time to visit Sumy:

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

April — 9.5(h)
May — 11.4(h)
June — 11.0(h)
July — 11.2(h)
August — 12.4(h)
September — 10.5(h)

Months with the longest average daylight duration in Sumy:

May — 15.8(h)
June — 16.8(h)
July — 16.3(h)

The largest precipitation sum in Sumy is at

June — 77(mm)

July — 126(mm)

October — 77(mm)

November — 105(mm)

Weather forecast in the closest to Sumy admin centers

Weather forecast in the closest towns to Sumy