May weather forecast
Turku, Finland

May is a welcoming month in Turku, with a substantial difference in weather from April. It is when the city is fully immersed in spring and the temperatures tread into the comfortable range. The increase in sunshine duration and sea temperatures aligns to the pleasant weather creating a serene outdoor experience. Though the rain persists, its melding into the refreshed landscape adds to the charm of the city during May. Packing a light coat or umbrella generally suffices to deal with the unpredictable spring showers.

Temperature

As Turku enters May, the average high-temperature increases from the a frosty 8.8°C (47.8°F) of April to a moderate 15.5°C (59.9°F). May in Turku is noted for a mean low-temperature of 4.8°C (40.6°F).

Rainfall

In Turku, in May, it is raining for 7 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, in Turku, Finland, there are 116 rainfall days, and 723mm (28.46") of precipitation is accumulated.

Sea temperature

In Turku, the average seawater temperature in May is 3.8°C (38.8°F).
Note: In connection with swimming, this state is severely cold, hazardous, and lethal. Without protective insulated waterproof garments, hypothermia sets in rapidly.

Daylight

The average length of the day in May is 17h and 19min.
On the first day of the month, sunrise is at 05:24 and sunset at 21:31. On the last day of May, sunrise is at 04:15 and sunset at 22:41 EEST.

Sunshine

The average sunshine in May is 9.2h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 4 during May translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.