Best year time to visit Illby

General weather information about Illby

Average annual temperature is 6.2 °C

Absolute maximum temperature: 28.9 °C

Absolute minimum temperature: -18.9 °C

Number of sunny days: 133 days

Number of rainy days: 173 days

Number of snow days: 59 days

Look at detailed online map of Illby

* Weather data for Illby Finland is based on climate observations for 2026 year

Illby air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.4	6.3	8.1	17.7	23.4	28.9	25.3	28.7	21.6	15.3	9.2	4.5
Average daytime temperature (°C)	-0.3	-0.2	1.4	10.5	16.0	22.0	21.0	21.1	18.5	7.0	1.6	-2.7
Average temperature (°C)	-2.3	-2.9	-2.2	5.0	11.0	16.8	16.7	17.2	14.9	4.4	-0.3	-4.7
Average night temperature (°C)	-4.3	-7.4	-6.7	-0.5	5.0	10.5	12.4	13.4	11.5	2.0	-2.6	-7.4
Absolute minimum temperature (°C)	-12.9	-18.9	-17.4	-10.2	-2.3	3.4	9.1	10.2	5.6	-3.2	-11.3	-17.3

Illby monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	7.0	10.0	13.0	15.0	18.0	19.0	18.0	16.0	14.0	11.0	8.0	6.0
Daylight mean duration (h)	6.7	9.1	11.8	14.6	17.3	18.9	18.1	15.7	12.9	10.1	7.5	5.9
Daylight minimum duration (h)	5.0	7.0	10.0	13.0	16.0	18.0	17.0	14.0	11.0	8.0	6.0	5.0
Sunshine mean duration (h)	0.8	2.4	5.0	11.0	12.8	15.2	13.2	9.3	7.8	4.3	0.9	0.4
Precipitation (mm)	111	45	84	19	31	24	97	99	61	90	74	65
Sunny days	9	10	9	24	16	18	5	10	7	12	6	7
Rainy days	12	8	11	6	14	12	26	21	23	16	14	10
Snow days	10	10	11	0	1	0	0	0	0	3	10	14

Illby - weather forecast by months

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

Best time to visit Illby:

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

April — 11.0(h)
May — 12.8(h)
June — 15.2(h)
July — 13.2(h)
August — 9.3(h)

Months with the longest average daylight duration in Illby:

May — 17.3(h)
June — 18.9(h)
July — 18.1(h)
August — 15.7(h)

The largest precipitation sum in Illby is at

January — 111(mm)

July — 97(mm)

August — 99(mm)

October — 90(mm)

Weather forecast in the closest to Illby admin centers