Best year time to visit Suni

General weather information about Suni

Average annual temperature is 4.7 °C

Absolute maximum temperature: 29.5 °C

Absolute minimum temperature: -17.0 °C

Number of sunny days: 135 days

Number of rainy days: 165 days

Number of snow days: 65 days

Look at detailed online map of Suni

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

Suni air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	4.7	5.0	4.4	13.0	20.6	26.8	24.6	29.5	22.5	12.2	5.4	4.3
Average daytime temperature (°C)	-0.6	-0.6	-1.7	5.6	12.6	18.4	18.8	19.9	16.6	5.0	-0.7	-3.7
Average temperature (°C)	-2.1	-2.6	-4.5	1.2	8.8	14.8	16.0	16.6	14.0	2.7	-2.7	-5.6
Average night temperature (°C)	-3.8	-4.5	-7.5	-2.9	4.9	10.4	12.8	13.4	11.1	0.7	-5.1	-7.9
Absolute minimum temperature (°C)	-13.9	-11.6	-14.8	-13.1	-1.5	2.8	10.6	10.3	5.4	-6.6	-17.0	-15.6

Suni 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	16.0	19.0	20.0	20.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	5.8	8.7	11.8	15.0	18.2	20.4	19.2	16.2	13.0	9.8	6.7	4.7
Daylight minimum duration (h)	4.0	7.0	10.0	13.0	16.0	19.0	17.0	14.0	11.0	8.0	5.0	4.0
Sunshine mean duration (h)	1.4	3.2	5.7	9.7	13.0	15.0	12.1	10.1	6.6	5.3	0.7	0.5
Precipitation (mm)	56	25	47	45	40	30	115	128	101	80	70	41
Sunny days	10	12	12	19	16	18	5	5	7	13	8	10
Rainy days	12	6	5	9	12	12	26	26	23	17	13	4
Snow days	9	10	14	2	3	0	0	0	0	1	9	17

Suni - weather forecast by months

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

Best time to visit Suni:

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

April — 9.7(h)
May — 13.0(h)
June — 15.0(h)
July — 12.1(h)
August — 10.1(h)

Months with the longest average daylight duration in Suni:

May — 18.2(h)
June — 20.4(h)
July — 19.2(h)
August — 16.2(h)

The largest precipitation sum in Suni is at

July — 115(mm)

August — 128(mm)

September — 101(mm)

Weather forecast in the closest to Suni admin centers