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
The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a fresh 10°C (50°F) in November to a chilly 6.9°C (44.4°F). Harnes documents a consistent average low-temperature of 2.7°C (36.9°F) at night during December.Humidity
The most humid month in Harnes is December, with an average relative humidity of 88%.Rainfall
December is the month with the most rainfall in Harnes. Rain falls for 15.6 days and accumulates 49mm (1.93") of precipitation.Snowfall
Months with snowfall in Harnes, France, are January through March, November and December. In December, in Harnes, France, it is snowing for 2.4 days. Throughout December, 19mm (0.75") of snow is accumulated. In Harnes, France, during the entire year, snow falls for 10.2 days and aggregates up to 79mm (3.11") of snow.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December in Harnes, sunrise is at 08:27 and sunset at 16:47. On the last day of the month, sunrise is at 08:48 and sunset at 16:54 CET.
Sunshine
The average sunshine in December in Harnes, France, is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Harnes?
What is the most humid month in Harnes?
What is the average humidity in December in Harnes?
What is the wettest month in Harnes?
How much does it rain in Harnes in December?
How many days does it snow in December in Harnes?
What is the month with the shortest days in Harnes?
How many hours of daylight does Harnes have in December?
What time are sunrise and sunset in December in Harnes?
How many hours of sunshine does Harnes have in December?
What is the month with the lowest UV index in Harnes?
What is the UV index reading in December in Harnes?
Average temperature in December
Harnes, France
- Average high temperature in December: 6.9°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 2.7°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 (1.2°C).
Average pressure in December
Harnes, France
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in December
Harnes, France
- Average wind speed in December: 18.2km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).
Average humidity in December
Harnes, France
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Harnes, France
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Harnes, France
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is September (10.4 days).
Average snowfall in December
Harnes, France
- Average snowfall in December: 19mm
The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Harnes, France
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Harnes, France
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Harnes, France
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is January (11.3 days).
Average UV index in December
Harnes, France
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Harnes, France
- Average cloud cover in December: 59
The months with the most cloud cover are January and November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in December
Harnes, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Harnes, France
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