December weather forecastPloumilliau, France
December
Weather in December
December, the first month of the winter in Ploumilliau, is still a cool month, with temperature in the range of an average high of 10.1°C (50.2°F) and an average low of 7°C (44.6°F).Temperature
The onset of December brings with it an average high-temperature of a still fresh 10.1°C (50.2°F), showing a negligible variation from the month before. Ploumilliau's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a chilly 7°C (44.6°F).Humidity
In December, the average relative humidity is 83%.Rainfall
In December, the rain falls for 21.2 days. Throughout December, 74mm (2.91") of precipitation is accumulated. Throughout the year, in Ploumilliau, France, there are 214.5 rainfall days, and 643mm (25.31") of precipitation is accumulated.Snowfall
Months with snowfall in Ploumilliau are January through March, November and December. In Ploumilliau, during December, snow falls for 0.9 days and regularly aggregates up to 9mm (0.35") of snow. Throughout the year, in Ploumilliau, there are 4.5 snowfall days, and 38mm (1.5") of snow is accumulated.Daylight
The month with the shortest days in Ploumilliau is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 08:46 and sunset at 17:20. On the last day of December, sunrise is at 09:06 and sunset at 17:27 CET.
Sunshine
The average sunshine in December is 3.5h.UV index
The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ploumilliau, France
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (19.1°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 7°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).
Average pressure in December
Ploumilliau, France
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in December
Ploumilliau, France
- Average wind speed in December: 25.3km/h
The windiest months (with the highest average wind speed) are February and December (25.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in December
Ploumilliau, France
- Average humidity in December: 83%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, March, April, September and October (82%).
Average rainfall in December
Ploumilliau, France
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Ploumilliau, France
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is September (13.7 days).
Average snowfall in December
Ploumilliau, France
- Average snowfall in December: 9mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Ploumilliau, France
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (1.9 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
Ploumilliau, France
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Ploumilliau, France
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is September (11.1 days).
The month with the least sunshine days is November (4.8 days).
Average UV index in December
Ploumilliau, France
- Average UV index in December: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Ploumilliau, France
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April, July and September (Cloud cover 42).
Average visibility in December
Ploumilliau, France
- Average visibility in December: 9km
The months with the highest visibility are March, April, June, July and September (10km).
The months with the lowest visibility are January, February, May, August, October, November and December (9km).
