Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the onset of December, Saint-Ismier's climate undergoes a slight change as the average high-temperature moves from a chilly 8.1°C (46.6°F) in November to an icy 4.5°C (40.1°F). Throughout the month of December, Saint-Ismier witnesses an average temperature of -1.8°C (28.8°F).Humidity
In December, the average relative humidity is 83%.Rainfall
December is the month with the most rainfall in Saint-Ismier. Rain falls for 8.2 days and accumulates 50mm (1.97") of precipitation.Snowfall
January through May, October through December are months with snowfall in Saint-Ismier. December is the month with the most snowfall in Saint-Ismier. Snow falls for 10.3 days and accumulates 197mm (7.76") of snow.Daylight
The month with the shortest days in Saint-Ismier is December, with an average of 8h and 48min of daylight.On the first day of December in Saint-Ismier, sunrise is at 07:55 and sunset at 16:55. On the last day of the month, sunrise is at 08:15 and sunset at 17:04 CET.
Sunshine
The months with the least sunshine in Saint-Ismier are January and December, with an average of 5.5h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 during December translates into the following guidance:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold does it get in Saint-Ismier in December?
What is the average humidity in December in Saint-Ismier?
What is the rainiest month in Saint-Ismier?
How much does it rain in Saint-Ismier in December?
When does it snow the most in Saint-Ismier?
How much does it snow in Saint-Ismier in December?
What is the month with the shortest days in Saint-Ismier?
How many hours of daylight does Saint-Ismier have in December?
What time are sunrise and sunset in December in Saint-Ismier?
What are the months with the least sunshine in Saint-Ismier?
How long on average sun shines in December in Saint-Ismier?
What is the month with the lowest UV index in Saint-Ismier?
How high is the UV index in December in Saint-Ismier?
Average temperature in December
Saint-Ismier, France
- Average high temperature in December: 4.5°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in December: -1.8°C
The months with the highest average low temperature are July and August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).
Average pressure in December
Saint-Ismier, France
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Saint-Ismier, France
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is February (8km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in December
Saint-Ismier, France
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Saint-Ismier, France
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in December
Saint-Ismier, France
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Saint-Ismier, France
- Average snowfall in December: 197mm
The month with the highest snowfall is December (197mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Saint-Ismier, France
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Saint-Ismier, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Saint-Ismier, France
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Saint-Ismier, France
- Average UV index in December: 2
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 2).
Average cloud cover in December
Saint-Ismier, France
- Average cloud cover in December: 40
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Saint-Ismier, France
- Average visibility in December: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
Saint-Ismier, France
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