Best year time to visit Heinijoki

General weather information about Heinijoki

Average annual temperature is 6.1 °C

Absolute maximum temperature: 30.5 °C

Absolute minimum temperature: -17.7 °C

Number of sunny days: 146 days

Number of rainy days: 164 days

Number of snow days: 55 days

Look at detailed online map of Heinijoki

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

Heinijoki air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.9	6.3	5.8	16.3	23.3	29.9	25.4	30.5	22.6	15.1	7.5	5.1
Average daytime temperature (°C)	0.3	0.4	1.1	10.4	15.3	21.6	20.7	20.2	18.1	6.6	0.9	-2.9
Average temperature (°C)	-1.5	-1.9	-2.7	4.5	10.1	16.6	16.6	16.8	14.7	4.4	-0.6	-4.7
Average night temperature (°C)	-3.4	-4.6	-7.0	-0.9	4.4	10.9	12.5	13.4	11.5	2.2	-2.6	-7.2
Absolute minimum temperature (°C)	-17.7	-13.0	-15.9	-14.7	-2.1	3.7	10.6	10.1	5.1	-4.2	-12.3	-14.8

Heinijoki 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	6.0
Daylight mean duration (h)	6.6	9.0	11.8	14.7	17.4	19.1	18.2	15.7	12.9	10.1	7.4	5.7
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)	1.1	2.7	5.6	11.2	13.0	15.6	12.3	9.3	7.4	4.7	0.8	0.3
Precipitation (mm)	81	33	96	21	39	23	138	154	70	104	83	27
Sunny days	11	18	9	20	19	18	6	6	11	10	7	11
Rainy days	11	3	9	10	11	12	25	25	19	19	14	6
Snow days	9	7	13	0	1	0	0	0	0	2	9	14

Heinijoki - weather forecast by months

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

Best time to visit Heinijoki:

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

April — 11.2(h)
May — 13.0(h)
June — 15.6(h)
July — 12.3(h)
August — 9.3(h)

Months with the longest average daylight duration in Heinijoki:

May — 17.4(h)
June — 19.1(h)
July — 18.2(h)
August — 15.7(h)

The largest precipitation sum in Heinijoki is at

March — 96(mm)

July — 138(mm)

August — 154(mm)

October — 104(mm)

Weather forecast in the closest to Heinijoki admin centers