May weather forecastPertteli, Finland
May
Weather in May
May, the last month of the spring in Pertteli, is a refreshing month, with temperature in the range of an average high of 14.8°C (58.6°F) and an average low of 6°C (42.8°F).Temperature
With the onset of May, Pertteli experiences a temperature shift, with the average high-temperature moving from a chilly 7.7°C (45.9°F) in April to a refreshing 14.8°C (58.6°F). An average nighttime temperature of 6°C (42.8°F) is witnessed in Pertteli throughout May.Humidity
With an average relative humidity of 70%, May is the least humid month.Rainfall
In Pertteli, in May, during 12 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Pertteli, Finland, during the entire year, the rain falls for 122 days and collects up to 276mm (10.87") of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Pertteli aggregates 7mm (0.28") of snow. Throughout the year, there are 71 snowfall days, and 408mm (16.06") of snow is accumulated.Daylight
The average length of the day in May in Pertteli, Finland, is 17h and 19min.On the first day of May, sunrise is at 05:20 and sunset at 21:27. On the last day of the month, sunrise is at 04:12 and sunset at 22:37 EEST.
Sunshine
The average sunshine in May in Pertteli is 10h.UV index
In May, the average daily maximum UV index in Pertteli, Finland, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Pertteli, Finland
- Average high temperature in May: 14.8°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 (-3.2°C).
- Average low temperature in May: 6°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).
Average pressure in May
Pertteli, Finland
- Average pressure in May: 1014.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in May
Pertteli, Finland
- Average wind speed in May: 12km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in May
Pertteli, Finland
- Average humidity in May: 70%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in May
Pertteli, Finland
- Average rainfall in May: 21mm
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in May
Pertteli, Finland
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
Pertteli, Finland
- Average snowfall in May: 7mm
The month with the highest snowfall is December (91mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Pertteli, Finland
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Pertteli, Finland
- Average daylight in May: 17h and 18min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in May
Pertteli, Finland
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.4 days).
Average UV index in May
Pertteli, Finland
- Average UV index in May: 4
The months with the highest UV index are June and 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
Pertteli, Finland
- Average cloud cover in May: 41
The months with the most cloud cover are February and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in May
Pertteli, Finland
- Average visibility in May: 9km
The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January, February and March (7km).
