Best year time to visit Isojoki

General weather information about Isojoki

Average annual temperature is 4.8 °C

Absolute maximum temperature: 30.1 °C

Absolute minimum temperature: -16.1 °C

Number of sunny days: 138 days

Number of rainy days: 167 days

Number of snow days: 60 days

Look at detailed online map of Isojoki

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

Isojoki air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.5	5.0	4.6	14.9	22.6	28.6	23.4	30.1	21.4	13.1	5.9	4.3
Average daytime temperature (°C)	-0.8	-0.6	-0.3	8.7	13.8	20.0	19.7	19.4	16.7	5.1	-0.8	-3.7
Average temperature (°C)	-2.6	-2.8	-3.7	2.8	9.0	15.4	15.7	16.1	13.5	2.6	-2.6	-6.0
Average night temperature (°C)	-4.5	-5.5	-7.3	-2.2	3.7	9.9	11.7	12.7	10.5	0.2	-4.5	-8.6
Absolute minimum temperature (°C)	-15.1	-13.4	-15.2	-12.0	-3.5	1.6	8.6	9.1	4.0	-6.8	-16.1	-15.1

Isojoki 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	19.0	19.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	6.3	8.9	11.8	14.8	17.8	19.6	18.7	15.9	13.0	10.0	7.1	5.3
Daylight minimum duration (h)	5.0	7.0	10.0	13.0	16.0	19.0	17.0	14.0	11.0	8.0	5.0	5.0
Sunshine mean duration (h)	1.0	3.0	5.5	10.6	12.9	14.8	11.9	9.2	6.5	4.9	0.9	0.1
Precipitation (mm)	70	34	79	44	46	30	134	140	136	78	94	29
Sunny days	12	15	9	21	15	15	4	4	8	14	11	10
Rainy days	10	2	9	9	14	15	27	27	22	15	11	6
Snow days	9	11	13	0	2	0	0	0	0	2	8	15

Isojoki - weather forecast by months

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

Best time to visit Isojoki:

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

April — 10.6(h)
May — 12.9(h)
June — 14.8(h)
July — 11.9(h)
August — 9.2(h)

Months with the longest average daylight duration in Isojoki:

May — 17.8(h)
June — 19.6(h)
July — 18.7(h)
August — 15.9(h)

The largest precipitation sum in Isojoki is at

July — 134(mm)

August — 140(mm)

September — 136(mm)

Weather forecast in the closest to Isojoki admin centers