Best year time to visit Herttuala

General weather information about Herttuala

Average annual temperature is 5.5 °C

Absolute maximum temperature: 29.8 °C

Absolute minimum temperature: -17.5 °C

Number of sunny days: 135 days

Number of rainy days: 168 days

Number of snow days: 62 days

Look at detailed online map of Herttuala

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

Herttuala air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.8	6.0	5.4	17.1	22.7	29.8	24.2	29.5	22.2	14.0	6.7	4.4
Average daytime temperature (°C)	-0.6	-0.7	0.4	9.7	15.5	21.1	20.1	20.2	17.9	5.8	-0.2	-3.6
Average temperature (°C)	-2.3	-3.0	-3.1	3.5	10.2	16.3	16.3	16.8	14.4	3.2	-1.7	-5.5
Average night temperature (°C)	-4.3	-6.0	-7.0	-2.1	4.3	10.4	12.4	13.5	11.2	0.9	-3.4	-7.7
Absolute minimum temperature (°C)	-13.5	-13.7	-17.5	-11.1	-3.3	2.3	10.3	10.9	5.3	-5.6	-14.4	-15.0

Herttuala 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	18.0	19.0	19.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	6.4	8.9	11.8	14.8	17.6	19.4	18.5	15.8	12.9	10.0	7.2	5.5
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)	0.7	3.0	5.2	11.1	12.1	14.8	11.8	9.0	7.0	4.7	0.5	0.3
Precipitation (mm)	67	28	87	36	33	31	129	181	90	97	85	31
Sunny days	10	16	8	21	18	18	4	6	4	12	9	9
Rainy days	12	1	9	9	11	12	27	25	26	17	13	6
Snow days	9	11	14	0	2	0	0	0	0	2	8	16

Herttuala - weather forecast by months

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

Best time to visit Herttuala:

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

April — 11.1(h)
May — 12.1(h)
June — 14.8(h)
July — 11.8(h)
August — 9.0(h)

Months with the longest average daylight duration in Herttuala:

May — 17.6(h)
June — 19.4(h)
July — 18.5(h)
August — 15.8(h)

The largest precipitation sum in Herttuala is at

July — 129(mm)

August — 181(mm)

October — 97(mm)

Weather forecast in the closest to Herttuala admin centers