May weather forecastKeyritty, Finland
May
Weather in May
May, the last month of the spring in Keyritty, is a cool month, with an average temperature ranging between min 5.4°C (41.7°F) and max 12.8°C (55°F).Temperature
The onset of May marks a clear increase in the average high-temperature, escalating from an icy 4.3°C (39.7°F) in April to a fresh 12.8°C (55°F). In May, Keyritty reports a consistent average low-temperature of 5.4°C (41.7°F) during the nights.Humidity
The average relative humidity in May is 69%.Rainfall
In Keyritty, in May, during 9.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, in Keyritty, there are 106.5 rainfall days, and 384mm (15.12") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Keyritty, in May, snow falls for 1.3 days, with typically accumulated 22mm (0.87") of snow. Throughout the year, there are 110.8 snowfall days, and 1074mm (42.28") of snow is accumulated.Daylight
The average length of the day in May is 18h and 13min.On the first day of the month, sunrise is at 04:41 and sunset at 21:26. On the last day of May, sunrise is at 03:13 and sunset at 22:55 EEST.
Sunshine
The average sunshine in May is 9.9h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in May transforms into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Keyritty, Finland
- Average high temperature in May: 12.8°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in May: 5.4°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-9.9°C).
Average pressure in May
Keyritty, Finland
- Average pressure in May: 1014.5mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in May
Keyritty, Finland
- Average wind speed in May: 11.7km/h
The windiest month (with the highest average wind speed) is November (15km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in May
Keyritty, Finland
- Average humidity in May: 69%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (68%).
Average rainfall in May
Keyritty, Finland
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in May
Keyritty, Finland
- Average rainfall days in May: 9.8 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in May
Keyritty, Finland
- Average snowfall in May: 22mm
The month with the highest snowfall is January (230mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in May
Keyritty, Finland
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Keyritty, Finland
- Average daylight in May: 18h and 12min
The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).
- Average sunshine in May: 9h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in May
Keyritty, Finland
- Average sunshine days in May: 19.3 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in May
Keyritty, Finland
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Keyritty, Finland
- Average cloud cover in May: 47
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in May
Keyritty, Finland
- Average visibility in May: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (5km).





