Best year time to visit Sejny

General weather information about Sejny

Average annual temperature is 9.2 °C

Absolute maximum temperature: 32.9 °C

Absolute minimum temperature: -9.3 °C

Number of sunny days: 141 days

Number of rainy days: 197 days

Number of snow days: 27 days

Look at detailed online map of Sejny

* Weather data for Sejny Poland is based on climate observations for 2026 year

Sejny air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	13.7	6.7	16.1	20.1	25.6	27.0	32.8	32.9	27.2	22.8	11.6	7.1
Average daytime temperature (°C)	2.6	2.3	6.9	12.4	18.0	22.5	23.1	25.4	22.7	11.9	4.1	1.8
Average temperature (°C)	1.0	0.0	2.8	7.9	12.8	17.7	18.6	20.4	17.3	8.8	2.1	0.4
Average night temperature (°C)	-1.0	-2.5	-1.0	3.3	6.5	12.1	13.4	15.9	12.2	5.7	-0.4	-1.3
Absolute minimum temperature (°C)	-9.3	-6.7	-6.2	-4.8	-0.2	4.7	10.3	10.8	8.8	0.5	-7.7	-6.6

Sejny 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	15.0	16.0	17.0	17.0	15.0	13.0	11.0	9.0	7.0
Daylight mean duration (h)	8.0	9.8	11.9	14.1	16.0	17.1	16.5	14.8	12.7	10.5	8.6	7.5
Daylight minimum duration (h)	7.0	8.0	10.0	13.0	15.0	16.0	15.0	13.0	11.0	9.0	7.0	7.0
Sunshine mean duration (h)	1.1	3.5	6.9	8.4	12.0	11.7	12.5	10.6	10.2	4.8	3.0	1.1
Precipitation (mm)	70	38	52	51	29	84	31	119	15	98	39	64
Sunny days	6	14	8	10	24	13	11	10	22	4	13	6
Rainy days	14	10	19	19	7	17	20	21	8	27	16	19
Snow days	11	4	4	1	0	0	0	0	0	0	1	6

Sejny - weather forecast by months

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

Best time to visit Sejny:

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

May — 12.0(h)
June — 11.7(h)
July — 12.5(h)
August — 10.6(h)
September — 10.2(h)

Months with the longest average daylight duration in Sejny:

May — 16.0(h)
June — 17.1(h)
July — 16.5(h)

The largest precipitation sum in Sejny is at

June — 84(mm)

August — 119(mm)

October — 98(mm)

Weather forecast in the closest to Sejny admin centers