What’s the climate like in Helsinki?
The current climate of Helsinki features average monthly temperatures ranging from highs of 22°C during the day to lows of -3°C. The average yearly temperature is around 10°C. At night, temperatures in the colder months average around -8°C and in the warmer months around 14°C.
The highest temperature recorded in Helsinki in recent years was 33°C in July 2019. The lowest daytime temperature recorded was -26°C in January 2016.
On average, Helsinki gets 859 mm of precipitation each year. Of this, about 87 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Curious about the climate in other parts of Finland? Check out the weather and climate in places like Rovaniemi, Kuusamo, Tampere, or have a look at other destinations in Finland.
Best time to visit Helsinki?
The best time to visit Helsinki for pleasant to warm weather is May through July and September. There might be some rain during this period, but the temperatures are just right for exploring Helsinki.
Climate Table of Helsinki
The climate table of Helsinki shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | -3 | 1 | 3 | 8 | 15 | 20 | 22 | 21 | 16 | 8 | 4 | 0 |
| Temp. min (°C) | -8 | -3 | -3 | 1 | 7 | 12 | 14 | 14 | 10 | 3 | 1 | -3 |
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| Precipitation (mm) | 53 | 51 | 69 | 63 | 83 | 62 | 117 | 138 | 51 | 63 | 57 | 52 |
| Snow (cm) | 19 | 19 | 18 | 7,7 | 0,4 | 0 | 0 | 0 | 0 | 2,5 | 8,3 | 13 |
| UV Index | 0 | 1 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 1 | 0 | 0 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 10°C
- Highest temperature: 22°C in July
- Lowest temperature: -3°C in January
- Precipitation*: 859 mm per year, averaging 72 mm per month
- Snowfall: 87 cm per year
- Driest months: 51 mm in February, September and 52 mm in December
- Wettest months: 138 mm in August, 117 mm in July and 83 mm in May
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Helsinki
This graph shows the average maximum temperatures per month in Helsinki, Finland. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Helsinki
This graph shows how much precipitation Helsinki, Finland, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Helsinki
This graph shows how much snow Helsinki, Finland, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Helsinki
This graph shows the average UV index per month in Helsinki, Finland. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Helsinki
This graph shows the average yearly temperature in Helsinki, Finland. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Helsinki
This chart shows the total yearly precipitation in Helsinki, Finland, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Helsinki
This chart shows the total yearly snowfall in Helsinki, Finland, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences 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.
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