Helsinki Weather in May

What's the weather like in Helsinki (Province of Western Finland) in May 2023?

The climate in Helsinki during May can be summarized as cool and dry.

May is in the spring in Helsinki and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 13°C (54°F), whilst at night 4°C (40°F) is normal.

Helsinki weather averages (imperial / metric)
Daytime temperature 12.5°C 54.4°F
Nightly temperature 4.4°C 39.8°F
Average temperature 8.4°C 47.1°F
Daily sunshine 8.8 hrs
Avg rainfall 30 mm 1.2 ins
Rainy days 9 days
Sea temperature 5.3°C 41.6°F
Humidity 76%
Windspeed 15.8kph 10 mph

On average May is the 3rd driest month of the year in Helsinki with around 30mm 1.2 inches of rain making it a dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.8 hours of sunshine per day.

May temperatures in Helsinki

Helsinki average temperature in May

May rainfall

Helsinki average rain in May

May hourly sunshine

Helsinki average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Helsinki in May 2022.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Helsinki weather stats

Helsinki weather statistics
Hottest month: July 19.5°C 67.1°F
Driest month: February 25mm 1ins
Sunniest month: June 10.7hrs
Coldest month: February -2.7°C 27.1°F
Wettest month: August 75mm 3ins
Map showing location of Helsinki (60.60778, 21.4381)

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