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
December
Weather in December
Temperature
Plouharnel records an average high-temperature of a still cool 10.5°C (50.9°F) in December, closely mirroring the climate of the previous month. In Plouharnel, nights during December observe an average temperature decrease to a chilly 7.3°C (45.1°F).Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Plouharnel.Rainfall
In Plouharnel, in December, during 16.1 rainfall days, 76mm (2.99") of precipitation is typically accumulated. Throughout the year, in Plouharnel, there are 169.8 rainfall days, and 593mm (23.35") of precipitation is accumulated.Snowfall
Months with snowfall are February, April and December. The months with the most snowfall in Plouharnel are February, April and December, with an average 1mm (0.04") of accumulated snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Plouharnel.On the first day of the month, sunrise is at 08:40 and sunset at 17:23. On the last day of December, sunrise is at 09:00 and sunset at 17:30 CET.
Sunshine
In December, the average sunshine in Plouharnel, France, is 4.6h.UV index
January through April, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Plouharnel?
What is the most humid month in Plouharnel?
What is the average humidity in December in Plouharnel?
How much does it rain in Plouharnel in December?
What is the snowiest month in Plouharnel?
When does it start to snow in Plouharnel?
What is the month with the shortest days in Plouharnel?
How many hours of daylight does Plouharnel have in December?
What time are sunrise and sunset in December in Plouharnel?
How many hours of sunshine does Plouharnel have in December?
What are the months with the lowest UV index in Plouharnel?
How high is the UV index in December in Plouharnel?
Average temperature in December
Plouharnel, France
- Average high temperature in December: 10.5°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in December: 7.3°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in December
Plouharnel, France
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in December
Plouharnel, France
- Average wind speed in December: 22.9km/h
The windiest month (with the highest average wind speed) is December (22.9km/h).
The calmest month (with the lowest average wind speed) is August (15.5km/h).
Average humidity in December
Plouharnel, France
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in December
Plouharnel, France
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in December
Plouharnel, France
- Average rainfall days in December: 16.1 days
The month with the highest number of rainy days is January (17.7 days).
The month with the least rainy days is September (10 days).
Average snowfall in December
Plouharnel, France
- Average snowfall in December: 1mm
The months with the highest snowfall are February, April and December (1mm).
The months with the least snowfall are January, March, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Plouharnel, France
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.5 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
Plouharnel, France
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Plouharnel, France
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in December
Plouharnel, France
- Average UV index in December: 3
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, March, April, November and December (UV index 3).
Average cloud cover in December
Plouharnel, France
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Plouharnel, France
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
