Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The beginning of May marks a minor shift in the average high-temperature, moving from April's cool 10.4°C (50.7°F) to a moderate 15.2°C (59.4°F). Källby records an average low-temperature of 6.8°C (44.2°F) throughout the month of May.Humidity
In Källby, the average relative humidity in May is 72%.Rainfall
In Källby, during May, the rain falls for 14.8 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in Källby, there are 152.6 rainfall days, and 462mm (18.19") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Källby. During 0.4 snowfall days, in May, Källby aggregates 6mm (0.24") of snow. In Källby, Sweden, during the entire year, snow falls for 46.2 days and aggregates up to 378mm (14.88") of snow.Daylight
In May, the average length of the day is 16h and 51min.On the first day of May, sunrise is at 05:10 and sunset at 20:57. On the last day of the month, sunrise is at 04:09 and sunset at 21:59 CEST.
Sunshine
In Källby, the average sunshine in May is 8.7h.UV index
In Källby, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in May leads to these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Källby?
What is the average humidity in May in Källby?
How many days does it rain in May in Källby?
What is the last month it snows in Källby?
How many hours of daylight does Källby have in May?
When is the sunrise / sunset in May in Källby?
How long on average sun shines in May in Källby?
What is the UV index reading in May in Källby?
Average temperature in May
Källby, Sweden
- Average high temperature in May: 15.2°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in May: 6.8°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is February (-3.2°C).
Average pressure in May
Källby, Sweden
- Average pressure in May: 1014.4mbar
The months with the highest atmospheric pressure are April and May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in May
Källby, Sweden
- Average wind speed in May: 13.7km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in May
Källby, Sweden
- Average humidity in May: 72%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Källby, Sweden
- Average rainfall in May: 38mm
The wettest month (with the highest rainfall) is June (56mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in May
Källby, Sweden
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is August (16.7 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in May
Källby, Sweden
- Average snowfall in May: 6mm
The month with the highest snowfall is January (94mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Källby, Sweden
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Källby, Sweden
- Average daylight in May: 16h and 5min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in May
Källby, Sweden
- Average sunshine days in May: 14 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in May
Källby, Sweden
- 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 and December (UV index 1).
Average cloud cover in May
Källby, Sweden
- Average cloud cover in May: 44
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 42).
Average visibility in May
Källby, Sweden
- Average visibility in May: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February and December (8km).
