Helsinki Weather in October
In October, Helsinki averages a high of 9°C (48°F) and a low of 4°C (39°F), based on 55 years of historical weather data from HELSINKI RAUTATIENTORI.
9°C
Average high
48°F
4°C
Average low
39°F
18°C
Record high
64°F · 1973
-12°C
Record low
11°F · 1992
What to Expect in Helsinki in October
Typical October days in Helsinki reach 9°C (48°F) during the afternoon and cool to around 4°C (39°F) overnight. On average, measurable rain falls on about 55% of days this month. Over the past 55 years, October temperatures in Helsinki have ranged from a record high of 18°C (1973) down to a record low of -12°C (1992).
For a day-by-day look or other months, see the full Helsinki weather history.