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Weather in May in Southern Finland

Planning a getaway to Southern Finland this May and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Southern Finland in May?

Southern Finland is a region in Finland. May in Southern Finland generally has temperatures that range from cold to mild, with moderate precipitation.

Temperatures

During the day the temperature is cold in Hanko at 10°C and mild in Laukkoski at 17°C. As night falls, temperatures generally drop to 6°C in Laukkoski and 7°C in Hanko.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Nauvo with an average of 36 mm to moderate rainfall in Parikkala with 55 mm.

Average sunshine

The city Helsinki usually sees around 275 hours of sunlight, indicating many sunny days.

To learn more about the conditions in specific areas of Southern Finland in May, check out the map below. For more details on the yearly weather, visit our Southern Finland climate page.

Where to go in Southern Finland in May

Find more information for the most popular destinations in the Southern Finland on the map below. Click on a destination dot for more detailes.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in May for the 5 most popular destinations in Southern Finland?

Helsinki

In May Helsinki generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 6°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Helsinki
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
9°C 
0°C 
195 hours 
43 mm 
13 days 
poor 
16°C 
6°C 
275 hours 
48 mm 
10 days 
June   >> June
>>  
20°C 
11°C 
298 hours 
78 mm 
11 days 
Climate in Helsinki

Turku

In May Turku generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Turku
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
10°C 
-0°C 
206 hours 
38 mm 
13 days 
poor 
16°C 
5°C 
283 hours 
44 mm 
11 days 
June   >> June
>>  
20°C 
9°C 
277 hours 
71 mm 
11 days 
Climate in Turku

Rauha

In May Rauha generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Rauha
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
8°C 
-1°C 
40 mm 
14 days 
poor 
16°C 
5°C 
52 mm 
11 days 
June   >> June
>>  
20°C 
11°C 
75 mm 
13 days 
Climate in Rauha

Espoo

In May Espoo generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 6°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Espoo
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
8°C 
0°C 
195 hours 
42 mm 
13 days 
poor 
15°C 
6°C 
275 hours 
46 mm 
11 days 
June   >> June
>>  
19°C 
10°C 
298 hours 
71 mm 
11 days 
Climate in Espoo

Naantali

In May Naantali generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Naantali
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
9°C 
0°C 
206 hours 
38 mm 
12 days 
poor 
15°C 
5°C 
283 hours 
43 mm 
10 days 
June   >> June
>>  
19°C 
10°C 
277 hours 
68 mm 
10 days 
Climate in Naantali

Is your destination not in the list? Have a look at other destinations in Southern Finland, in Finland.

Is May the best time to visit Southern Finland?

Given the typically tolerable weather conditions in Helsinki, May might be a good time to visit Southern Finland. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in June, July and August offering mostly perfect weather in Helsinki. The weather in January, February, March, April, October, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Southern Finland. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for every country in the world. Are you going to Finland? Get detailed historical weather averages for many cities in Finland.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.