Best year time to visit Härtsilä

General weather information about Härtsilä

Average annual temperature is 6.0 °C

Absolute maximum temperature: 30.0 °C

Absolute minimum temperature: -18.1 °C

Number of sunny days: 121 days

Number of rainy days: 182 days

Number of snow days: 62 days

Look at detailed online map of Härtsilä

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

Härtsilä air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.4	6.1	7.1	17.6	24.3	30.0	25.1	29.5	22.2	15.2	7.8	4.2
Average daytime temperature (°C)	-0.1	-0.1	1.3	10.2	15.8	22.3	20.6	20.7	18.3	6.9	1.4	-2.9
Average temperature (°C)	-2.2	-2.7	-2.3	4.1	10.5	16.8	16.5	17.0	14.8	4.3	-0.2	-4.8
Average night temperature (°C)	-4.7	-6.7	-6.4	-1.5	4.3	10.2	12.1	13.4	11.4	1.7	-2.1	-7.3
Absolute minimum temperature (°C)	-18.1	-16.1	-16.6	-9.1	-1.9	3.6	9.6	10.8	5.3	-3.8	-12.7	-15.4

Härtsilä 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)	1.0	2.5	5.8	11.3	12.8	15.5	13.1	9.3	7.4	4.2	1.1	0.4
Precipitation (mm)	88	39	75	18	58	23	70	137	45	103	84	50
Sunny days	9	12	9	22	19	16	3	6	5	9	5	6
Rainy days	11	7	9	8	11	14	28	25	25	20	17	7
Snow days	11	9	13	0	1	0	0	0	0	2	8	18

Härtsilä - weather forecast by months

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

Best time to visit Härtsilä:

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

April — 11.3(h)
May — 12.8(h)
June — 15.5(h)
July — 13.1(h)
August — 9.3(h)

Months with the longest average daylight duration in Härtsilä:

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

The largest precipitation sum in Härtsilä is at

January — 88(mm)

August — 137(mm)

October — 103(mm)

November — 84(mm)

Weather forecast in the closest to Härtsilä admin centers