May weather forecastKastu, Finland
May
Weather in May
May, the last month of the spring in Kastu, is a mild month, with an average temperature varying between 6.7°C (44.1°F) and 13.2°C (55.8°F).Temperature
May's arrival coincides with a rise in the average high-temperature, moving from April's chilly 6.8°C (44.2°F) to a refreshing 13.2°C (55.8°F). Kastu's temperature tends to fall to an average low of 6.7°C (44.1°F) during the nights of May.Humidity
The least humid month is May, with an average relative humidity of 71%.Rainfall
In Kastu, in May, it is raining for 12 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 133.7 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Kastu. During 0.8 snowfall days, in May, Kastu aggregates 13mm (0.51") of snow. In Kastu, Finland, during the entire year, snow falls for 60.5 days and aggregates up to 454mm (17.87") of snow.Daylight
In May, the average length of the day in Kastu 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, in Kastu, sunrise is at 04:15 and sunset at 22:41 EEST.
Sunshine
In May, the average sunshine in Kastu is 10.2h.UV index
In May, the average daily maximum UV index in Kastu is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kastu, Finland
- Average high temperature in May: 13.2°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in May: 6.7°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in May
Kastu, 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 (1007.6mbar).
Average wind speed in May
Kastu, Finland
- Average wind speed in May: 14.4km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in May
Kastu, Finland
- Average humidity in May: 71%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Kastu, Finland
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in May
Kastu, Finland
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in May
Kastu, Finland
- Average snowfall in May: 13mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Kastu, Finland
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Kastu, 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 12min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in May
Kastu, Finland
- Average sunshine days in May: 17.2 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in May
Kastu, Finland
- Average UV index in May: 4
The months with the highest UV index are June, July and August (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
Kastu, Finland
- Average cloud cover in May: 40
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in May
Kastu, Finland
- Average visibility in May: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
