The weather in May in Finland

It's cool to moderate in May in Finland with an average temperature of 15°C. Temperatures this month range from a low of 9°C to a high of 19°C. At night, you can expect temperatures between 2°C and 10°C.

Looking for sun and warm weather? May isn’t a good month to be in Finland. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for 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.

Precipitation and snowfall

In May, there is an average of 83 mm of precipitation, spread over 12 days. Of the total precipitation, about 0,4 cm falls as snow in May. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in May for Finland

Click on any day in May to get detailed info about the usual weather on that day in Finland. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  Finland New York
Average temperature 15°C 22°C
Max. temperature 19°C 28°C
Min. temperature 2°C -5°C
Total precipitation 83 mm 105 mm
Rainy days 12 days 14 days
Total snowfall 0,4 cm 0 cm
Snowy days 1 day 0 days

Start of May

The month of May starts in Finland with cool temps, averaging around 12°C during the day and nights around 3°C.

Mid May

By mid-May, daytime temps rise to around 16°C, with nights around 7°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of May

By the end of May, the average daytime temperature in Finland is around 17°C, while nighttime temps are about 9°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 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Finland for all months and discover the best travel time

The climate in Finland is based on weather data from Helsinki. Other places, like Rovaniemi, Kuusamo or Tampere, might have different weather. You can check out all destinations in Finland to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in May in Finland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in Finland

Temperature in May in Finland over the years

Precipitation charts

These charts show the average amount of precipitation in May in 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 May in Finland

Total precipitation in May in Finland over the years

Daily Snowfall in May in Finland

Snowfall in May in Finland per year

Daily UV index in May in Finland

This chart shows the average daily UV index in May in Finland, 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 May in Finland

The weather in May in Finland is rated 3 out of 5 stars by 1 visitor. Have you been to Finland? Share your weather experience to help other visitors.

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The weather was constantly changing; Rain, sun and cold nights. You have to be prepared for anything. Yet the unique charm of Finland compensates for the strange weather conditions.— This text is automatically translated to English

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Average weather in Finland by month

Click on a month below to see detailed weather info for Finland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.