May weather forecastKarstula, Finland
May
Weather in May
May, the last month of the spring in Karstula, is a moderate month, with an average temperature varying between 4.8°C (40.6°F) and 14.3°C (57.7°F).Temperature
May indicates a noticeable escalation in the average high-temperature, moving up from an icy 5.7°C (42.3°F) in April to a refreshing 14.3°C (57.7°F). May's average low-temperature reading settles at a cold 4.8°C (40.6°F).Humidity
The least humid month in Karstula is May, with an average relative humidity of 68%.Rainfall
In Karstula, Finland, in May, during 13.1 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, in Karstula, there are 126.7 rainfall days, and 417mm (16.42") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.9 snowfall days, in May, Karstula aggregates 22mm (0.87") of snow. Throughout the year, in Karstula, there are 103.2 snowfall days, and 1012mm (39.84") of snow is accumulated.Daylight
The average length of the day in May in Karstula is 18h and 1min.On the first day of May, sunrise is at 04:59 and sunset at 21:36. On the last day of the month, sunrise is at 03:36 and sunset at 23:00 EEST.
Sunshine
The average sunshine in May in Karstula is 9.2h.UV index
In May, the average daily maximum UV index in Karstula is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In May, an average UV index of 4 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Karstula, Finland
- Average high temperature in May: 14.3°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-5.2°C).
- Average low temperature in May: 4.8°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-9.6°C).
Average pressure in May
Karstula, 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 (1007mbar).
Average wind speed in May
Karstula, Finland
- Average wind speed in May: 10.9km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is July (9.8km/h).
Average humidity in May
Karstula, Finland
- Average humidity in May: 68%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (68%).
Average rainfall in May
Karstula, Finland
- Average rainfall in May: 36mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is March (25mm).
Average rainfall days in May
Karstula, Finland
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in May
Karstula, Finland
- Average snowfall in May: 22mm
The month with the highest snowfall is January (227mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Karstula, Finland
- Average snowfall days in May: 1.9 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Karstula, Finland
- Average daylight in May: 18h and 0min
The month with the longest days is June (Average daylight: 20h and 0min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in May
Karstula, Finland
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is May (16.1 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in May
Karstula, 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
Karstula, Finland
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 83).
The months with the least cloud cover are June and July (Cloud cover 48).
Average visibility in May
Karstula, Finland
- Average visibility in May: 9km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).





