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Seinäjoki August Weather

Averages and records for weather in Seinäjoki, Finland in the month of August.

Typical Seinäjoki August Weather 1991–2020
Average daily high	20.5 °C
Average daily low	9.6 °C
Average monthly precipitation	7.3 cm
Daily chance of precipitation	53.7%

Seinäjoki August Weather Records 1959–2024
Highest temperature	31.5 °C	August 4, 2014
Lowest temperature	-2.4 °C	August 31, 1972
Highest daily low	19.6 °C	August 9, 2018
Lowest daily high	8.2 °C	August 31, 1960
Hottest average high temperature	24.9 °C	2002
Coldest average high temperature	15.4 °C	1987
Most daily precipitation	12.0 cm	August 6, 1967
Most monthly precipitation	25.5 cm	1967

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
August 1	22.1	10.9	31.5	1.1
August 2	22.0	10.8	30.3	1.8
August 3	22.0	10.8	29.0	0.7
August 4	21.9	10.7	31.5	0.9
August 5	21.9	10.7	30.7	3.0
August 6	21.8	10.6	29.8	1.1
August 7	21.7	10.5	31.1	-0.9
August 8	21.6	10.4	28.2	0.4
August 9	21.5	10.3	27.9	-0.2
August 10	21.4	10.2	29.7	-0.8
August 11	21.3	10.1	29.3	2.6
August 12	21.1	10.0	28.6	1.7
August 13	21.0	9.9	28.4	-0.7
August 14	20.8	9.9	29.7	0.8
August 15	20.6	9.8	27.4	-0.8
August 16	20.5	9.7	29.7	-1.3
August 17	20.3	9.6	27.6	-1.1
August 18	20.2	9.5	27.4	0.4
August 19	20.0	9.3	28.4	0.1
August 20	19.9	9.2	29.8	1.2
August 21	19.7	9.1	28.3	-1.1
August 22	19.6	9.0	28.5	-0.3
August 23	19.4	8.9	28.3	-0.8
August 24	19.2	8.8	28.4	-1.2
August 25	19.1	8.6	27.1	-1.9
August 26	18.9	8.5	26.9	-0.7
August 27	18.8	8.5	27.3	-2.2
August 28	18.7	8.3	27.2	-1.8
August 29	18.5	8.3	27.3	0.2
August 30	18.3	8.1	26.5	-1.0
August 31	18.2	8.0	25.0	-2.4

Weather Station Details

Years	Station	Coordinates
1959–2024	Seinajoki Pelmaa	location