December weather forecastHeiligenstein, France
December
Weather in December
December, the first month of the winter in Heiligenstein, is also an icy month, with an average temperature varying between 0.8°C (33.4°F) and 5.5°C (41.9°F).Temperature
December's arrival signals a moderate reduction in the average high-temperature, easing from a chilly 9.5°C (49.1°F) in November to a wintry 5.5°C (41.9°F). Heiligenstein sees a minor drop to an average minimum temperature of 0.8°C (33.4°F) during the night in the month of December.Humidity
January and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Heiligenstein, in December, it is raining for 14.3 days, with typically 50mm (1.97") of accumulated precipitation. In Heiligenstein, during the entire year, the rain falls for 162.7 days and collects up to 492mm (19.37") of precipitation.Snowfall
Months with snowfall in Heiligenstein are January through March, October through December. The month with the most snowfall in Heiligenstein is December, when snow falls for 4.4 days and typically aggregates up to 40mm (1.57") of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year in Heiligenstein.On the first day of the month, sunrise is at 08:01 and sunset at 16:37. On the last day of December, in Heiligenstein, France, sunrise is at 08:21 and sunset at 16:45 CET.
Sunshine
In December, the average sunshine in Heiligenstein is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Heiligenstein. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. 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 December
Heiligenstein, France
- Average high temperature in December: 5.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in December: 0.8°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in December
Heiligenstein, France
- Average pressure in December: 1019.8mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is November (1015.2mbar).
Average wind speed in December
Heiligenstein, France
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Heiligenstein, France
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in December
Heiligenstein, France
- Average rainfall in December: 50mm
The wettest months (with the highest rainfall) are June and July (56mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in December
Heiligenstein, France
- Average rainfall days in December: 14.3 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in December
Heiligenstein, France
- Average snowfall in December: 40mm
The month with the highest snowfall is December (40mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Heiligenstein, France
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heiligenstein, France
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Heiligenstein, France
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Heiligenstein, France
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Heiligenstein, France
- Average cloud cover in December: 54
The months with the most cloud cover are January and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Heiligenstein, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
