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
Sainte-Hélène-sur-Isère, France, experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a cold 3.6°C (38.5°F) in November to a still icy 0°C (32°F). In December, Sainte-Hélène-sur-Isère reports a consistent average low-temperature of -9.2°C (15.4°F) during the nights.Humidity
The average relative humidity in December is 83%.Rainfall
December is the month with the most rainfall. Rain falls for 5.8 days and accumulates 121mm (4.76") of precipitation.Snowfall
January through December are months with snowfall. The month with the most snowfall in Sainte-Hélène-sur-Isère is December, when snow falls for 14.8 days and typically aggregates up to 934mm (36.77") of snow.Daylight
The month with the shortest days in Sainte-Hélène-sur-Isère is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 07:55 and sunset at 16:52. On the last day of December, in Sainte-Hélène-sur-Isère, sunrise is at 08:15 and sunset at 17:00 CET.
Sunshine
The months with the least sunshine are January and December, with an average of 5.5h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Sainte-Hélène-sur-Isère in December?
What is the average humidity in December in Sainte-Hélène-sur-Isère?
What is the rainiest month in Sainte-Hélène-sur-Isère?
How many days does it rain in December in Sainte-Hélène-sur-Isère?
What is the snowiest month in Sainte-Hélène-sur-Isère?
How many days does it snow in December in Sainte-Hélène-sur-Isère?
What is the month with the shortest days in Sainte-Hélène-sur-Isère?
How many hours of daylight does Sainte-Hélène-sur-Isère have in December?
What time are sunrise and sunset in December in Sainte-Hélène-sur-Isère?
What is the month with the least sunshine in Sainte-Hélène-sur-Isère?
How many hours of sunshine does Sainte-Hélène-sur-Isère have in December?
How high is the UV index in December in Sainte-Hélène-sur-Isère?
Average temperature in December
Sainte-Hélène-sur-Isère, France
- Average high temperature in December: 0°C
The warmest month (with the highest average high temperature) is August (18.5°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -9.2°C
The month with the highest average low temperature is August (6.5°C).
The coldest months (with the lowest average low temperature) are January and February (-11.3°C).
Average pressure in December
Sainte-Hélène-sur-Isère, France
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in December
Sainte-Hélène-sur-Isère, France
- Average wind speed in December: 7km/h
The windiest month (with the highest average wind speed) is November (7.3km/h).
The calmest month (with the lowest average wind speed) is September (5.8km/h).
Average humidity in December
Sainte-Hélène-sur-Isère, France
- Average humidity in December: 83%
The months with the highest relative humidity are February and March (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Sainte-Hélène-sur-Isère, France
- Average rainfall in December: 121mm
The wettest month (with the highest rainfall) is December (121mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in December
Sainte-Hélène-sur-Isère, France
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is June (22.3 days).
The month with the least rainy days is December (5.8 days).
Average snowfall in December
Sainte-Hélène-sur-Isère, France
- Average snowfall in December: 934mm
The month with the highest snowfall is December (934mm).
The month with the least snowfall is July (1mm).
Average snowfall days in December
Sainte-Hélène-sur-Isère, France
- Average snowfall days in December: 14.8 days
The month with the highest number of snowfall days is March (17.4 days).
The month with the least snowfall days is August (0.1 days).
Average daylight in December /
Average sunshine in December
Sainte-Hélène-sur-Isère, 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 month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Sainte-Hélène-sur-Isère, France
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is October (17.2 days).
The months with the least sunshine days are May and June (4.3 days).
Average UV index in December
Sainte-Hélène-sur-Isère, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Sainte-Hélène-sur-Isère, France
- Average cloud cover in December: 40
The months with the most cloud cover are February and May (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sainte-Hélène-sur-Isère, France
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August, September, October and November (8km).
The months with the lowest visibility are January, February, March and December (7km).
Sainte-Hélène-sur-Isère, France
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