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FinlandThe weather in October in Helsinki
It's cold in October in Helsinki with an average temperature of 8°C. Temperatures this month range from a low of 4°C to a high of 12°C. At night, you can expect temperatures between 0°C and 6°C.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in October for Helsinki, Finland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 18°C in 2018, Helsinki reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was -3°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of -9°C to a highest value of 12°C.
Precipitation and snowfall
In October, there is an average of 62 mm of precipitation, spread over 8 days. Of the total precipitation, about 2,4 cm falls as snow in October. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in October for Helsinki
Click on any day in October to get detailed info about the usual weather on that day in Helsinki. Check out the historical temperatures and precipitation over the past 10 years on this day.
October weather comparison
| Helsinki | New York | |
|---|---|---|
| Average temperature | 8°C | 21°C |
| Max. temperature | 12°C | 26°C |
| Min. temperature | 0°C | -5°C |
| Total precipitation | 62 mm | 119 mm |
| Rainy days | 8 days | 13 days |
| Total snowfall | 2,4 cm | 0 cm |
| Snowy days | 1 day | 0 days |
Start of October
The month of October starts in Helsinki with cold temps, averaging around 10°C during the day and nights around 5°C.
Mid October
By mid-October, daytime temps drop to around 8°C, with nights around 3°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of October
By the end of October, the average daytime temperature in Helsinki is around 6°C, while nighttime temps are about 2°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Helsinki for all months and discover the best travel time
Curious about the weather in other parts of Finland? Check out the climate and weather for spots like Rovaniemi, Kuusamo, Tampere, or explore other destinations in Finland.
Temperature charts
These charts show the average temperatures in October in Helsinki, Finland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in October in Helsinki
Temperature in October in Helsinki over the years
Precipitation charts
These charts show the average amount of precipitation in October in Helsinki, Finland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in October in Helsinki
Total precipitation in October in Helsinki over the years
Daily Snowfall in October in Helsinki
Snowfall in October in Helsinki per year
Daily UV index in October in Helsinki
This chart shows the average daily UV index in October in Helsinki, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in October in Helsinki
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Average weather in Helsinki by month
Click on a month below to see detailed weather info for Helsinki. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.