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Helsinki October Weather

Averages and records for weather in Helsinki, Finland in the month of October.

Typical Helsinki October Weather 1991–2020
Average daily high	9.1 °C
Average daily low	4.2 °C
Average monthly precipitation	7.3 cm
Daily chance of precipitation	52.6%

Helsinki October Weather Records 1951–2024
Highest temperature	17.5 °C	October 5, 2005
Lowest temperature	-11.6 °C	October 31, 1992
Highest daily low	13.7 °C	October 3, 1999
Lowest daily high	-4.7 °C	October 30, 1992
Hottest average high temperature	11.7 °C	1961
Coldest average high temperature	4.5 °C	2002
Most daily precipitation	4.6 cm	October 13, 1963
Most monthly precipitation	18.4 cm	2006

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

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
October 1	12.3	6.8	17.0	-1.5
October 2	12.1	6.7	17.2	-1.9
October 3	11.9	6.5	16.5	-2.6
October 4	11.7	6.4	17.4	-2.2
October 5	11.5	6.2	17.5	-0.5
October 6	11.3	6.0	16.8	-2.8
October 7	11.0	5.8	15.6	-2.7
October 8	10.8	5.6	15.3	-2.6
October 9	10.6	5.4	15.9	-2.7
October 10	10.3	5.2	17.0	-3.0
October 11	10.1	5.1	15.0	-3.9
October 12	9.9	4.9	14.0	-4.6
October 13	9.7	4.7	16.1	-3.8
October 14	9.5	4.5	15.5	-2.7
October 15	9.3	4.4	14.7	-5.5
October 16	9.1	4.2	14.7	-2.7
October 17	8.9	4.1	15.0	-3.2
October 18	8.7	4.0	13.2	-4.6
October 19	8.5	3.8	13.4	-7.3
October 20	8.3	3.6	12.1	-9.0
October 21	8.2	3.5	12.9	-8.0
October 22	8.0	3.3	14.2	-10.5
October 23	7.8	3.2	12.8	-6.1
October 24	7.6	3.0	13.9	-7.6
October 25	7.4	2.9	13.2	-8.7
October 26	7.2	2.7	12.4	-5.4
October 27	7.1	2.6	13.0	-10.6
October 28	6.9	2.4	12.6	-7.9
October 29	6.7	2.3	12.9	-5.4
October 30	6.6	2.2	11.4	-8.6
October 31	6.4	2.1	11.6	-11.6

Weather Station Details

Years	Station	Coordinates
1951–2024	Helsinki Kaisaniemi Aws	location