Weather in Isoniitty in December

General weather information about Isoniitty

Average annual temperature is 6.2 °C

Absolute maximum temperature: 29.8 °C

Absolute minimum temperature: -18.6 °C

Number of sunny days: 129 days

Number of rainy days: 181 days

Number of snow days: 55 days

Look at detailed online map of Isoniitty

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

Isoniitty air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.3	6.5	8.0	18.5	24.1	29.8	24.6	28.9	21.1	14.8	9.0	4.4
Average daytime temperature (°C)	-0.2	0.0	1.4	10.8	16.3	22.3	21.1	21.1	18.4	7.0	1.6	-2.9
Average temperature (°C)	-2.3	-2.8	-2.3	5.1	11.1	17.1	16.8	17.2	15.0	4.4	-0.3	-4.7
Average night temperature (°C)	-4.6	-7.4	-7.1	-0.4	4.9	10.6	12.4	13.3	11.4	1.9	-2.7	-7.3
Absolute minimum temperature (°C)	-15.0	-17.6	-18.6	-9.7	-2.5	3.5	9.0	10.3	5.5	-3.2	-11.7	-17.9

Isoniitty 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	15.6	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)	0.9	2.3	5.2	11.0	13.0	15.4	13.2	9.0	7.9	4.3	0.9	0.5
Precipitation (mm)	115	46	85	16	40	23	87	120	73	98	75	65
Sunny days	8	10	9	21	15	17	4	9	7	14	7	8
Rainy days	14	7	12	9	16	13	27	22	23	16	14	8
Snow days	9	11	10	0	0	0	0	0	0	1	9	15

Isoniitty - weather forecast by months

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

Best time to visit Isoniitty:

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

April — 11.0(h)
May — 13.0(h)
June — 15.4(h)
July — 13.2(h)
August — 9.0(h)

Months with the longest average daylight duration in Isoniitty:

May — 17.3(h)
June — 18.9(h)
July — 18.1(h)
August — 15.6(h)

The largest precipitation sum in Isoniitty is at

January — 115(mm)

August — 120(mm)

October — 98(mm)

Weather forecast in the closest to Isoniitty admin centers