December weather forecastFormin, Slovenia
December
Weather in December
December, the first month of the winter in Formin, is also a wintry month, with an average temperature ranging between max 4.6°C (40.3°F) and min -0.3°C (31.5°F).Temperature
Formin's weather changes with the onset of December, slightly falling from a cool 10°C (50°F) in November to a cold 4.6°C (40.3°F). Formin's nocturnal December readings average at a subzero cold -0.3°C (31.5°F), showing little variation from the daytime temperatures.Humidity
In Formin, the average relative humidity in December is 83%.Rainfall
In Formin, during December, the rain falls for 9.9 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, in Formin, Slovenia, there are 150.5 rainfall days, and 599mm (23.58") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, in Formin, Slovenia, it is snowing for 4.1 days. Throughout December, 54mm (2.13") of snow is accumulated. In Formin, Slovenia, during the entire year, snow falls for 24.1 days and aggregates up to 350mm (13.78") of snow.Daylight
The month with the shortest days in Formin is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:19 and sunset at 16:10. On the last day of December, sunrise is at 07:39 and sunset at 16:18 CET.
Sunshine
In Formin, Slovenia, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Formin, Slovenia
- Average high temperature in December: 4.6°C
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in December: -0.3°C
The months with the highest average low temperature are July and August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in December
Formin, Slovenia
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The months with the lowest atmospheric pressure are May and June (1014.9mbar).
Average wind speed in December
Formin, Slovenia
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in December
Formin, Slovenia
- Average humidity in December: 83%
The months with the highest relative humidity are January and November (84%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Formin, Slovenia
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is May (81mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in December
Formin, Slovenia
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in December
Formin, Slovenia
- Average snowfall in December: 54mm
The month with the highest snowfall is January (117mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Formin, Slovenia
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Formin, Slovenia
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Formin, Slovenia
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in December
Formin, Slovenia
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in December
Formin, Slovenia
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Formin, Slovenia
- Average visibility in December: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and November (8km).





