May weather forecast
Finland

In May, Finland fully embraces the spring season, and the weather becomes more conducive to outdoor activities. This month experiences a substantial rise in temperatures, varying from 5°C (41°F) in the northern parts to a more comfortable 15°C (59°F) in the south.

As spring unfolds, cities like Helsinki and Turku along the southern coast witness warmer days, often exceeding 15°C (59°F). Meanwhile, in the northern parts of the country, including Lapland, temperatures start to climb above freezing, though they remain cooler than in the south. The moderating influence of the Gulf Stream and North Atlantic Drift continues to be felt, especially along the coastal regions.

The increasing warmth leads to the complete melting of the winter snow. However, in the northern regions and areas with high altitudes, traces of snow may still be found. This period is also marked by a surge in vegetation growth, transforming the Finnish landscape into a green expanse.

In May, the daylight hours extend considerably. The phenomenon of the 'midnight sun' becomes more apparent in the northernmost parts of the country, making days longer and nights shorter. The extended daylight hours provide more opportunities for outdoor activities, such as hiking and fishing.

Wind activity during May is generally low, especially compared to the windy winter months. This reduction in wind speed further contributes to the pleasant weather conditions.

As May transitions into June, temperatures rise further, marking the onset of the Finnish summer. The increasing temperatures, combined with the long daylight hours, set the stage for a vibrant and active summer season across the country.

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• Helsinki - May »
  Throughout the year, there are 182 rainfall days, and 655mm (25.79") of precipitation is accumulated. A pleasant warmth envelops Helsinki, with a notable elevation in sea temperatures to 5°C (41°F), encouraging visitation to the city's coastal regions.
• Espoo - May »
  On the last day of May, in Espoo, sunrise is at 04:08 and sunset at 22:29 EEST. On the first day of May in Espoo, sunrise is at 05:16 and sunset at 21:20.
• Tampere - May »
  With an average relative humidity of 63%, May is the least humid month in Tampere, Finland. In Tampere in May, it is raining for 12 days, with typically 41mm (1.61") of accumulated precipitation.
• Vantaa - May »
  On the last day of the month, in Vantaa sunrise is at 04:06 and sunset at 22:28 EEST. On the first day of May in Vantaa, sunrise is at 05:14 and sunset at 21:19.
• Oulu - May »
  Throughout the year, in Oulu there are 107.1 snowfall days, and 1131mm (44.53") of snow is accumulated. In Oulu, Finland, during May, the rain falls for 11.8 days and regularly aggregates up to 31mm (1.22") of precipitation.
• Turku - May »
  On the first day of May in Turku, Finland, sunrise is at 05:24 and sunset at 21:31. Throughout the year, in Turku there are 116 rainfall days, and 723mm (28.46") of precipitation is accumulated.
• Jyväskylä - May »
  Throughout the year, in Jyväskylä there are 96 snowfall days, and 932mm (36.69") of snow is accumulated. In Jyväskylä in May, during 12.3 rainfall days, 39mm (1.54") of precipitation is typically accumulated.
• Lahti - May »
  On the last day of the month, in Lahti, sunrise is at 03:56 and sunset at 22:33 EEST. In Lahti, Finland, in May, during 11.7 rainfall days, 36mm (1.42") of precipitation is typically accumulated.
• Kuopio - May »
  Throughout the year, in Kuopio, Finland, there are 110.8 snowfall days, and 1074mm (42.28") of snow is accumulated. In Kuopio, in May, during 1.3 snowfall days, 22mm (0.87") of snow is typically accumulated.
• Pori - May »
  On the first day of May in Pori sunrise is at 05:20 and sunset at 21:39. May is the month with the least rainfall in Pori, with 20mm (0.79") of accumulated precipitation.
• Kouvola - May »
  On the last day of the month, in Kouvola, sunrise is at 03:53 and sunset at 22:28 EEST. In Kouvola during the entire year, the rain falls for 131.9 days and collects up to 451mm (17.76") of precipitation.
• Joensuu - May »
  In Joensuu, in May, snow falls for 2.3 days, with typically accumulated 39mm (1.54") of snow. In Joensuu, during the entire year, snow falls for 120.8 days and aggregates up to 1101mm (43.35") of snow.