December weather forecastCosta, Italy
December
Weather in December
December, the first month of the winter in Costa, is still a chilly month, with an average temperature fluctuating between 9.8°C (49.6°F) and 6.5°C (43.7°F).Temperature
As December arrives, Costa's weather displays a minor decrease in high-temperatures, transitioning from November's mild 13°C (55.4°F) to a chilly 9.8°C (49.6°F). Costa, during December nights, observes a steady temperature, averaging at a still frosty 6.5°C (43.7°F).Humidity
In Costa, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 12.4 days. Throughout December, 67mm (2.64") of precipitation is accumulated. In Costa, during the entire year, the rain falls for 173.2 days and collects up to 776mm (30.55") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, there are 1.3 snowfall days, and 15mm (0.59") of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:37 and sunset at 16:44. On the last day of December, sunrise is at 07:57 and sunset at 16:52 CET.
Sunshine
In December, the average sunshine is 5.5h.UV index
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 3 suggests this advice:
Take precautions - Protection against skin and eye damage is obliged. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Costa, Italy
- Average high temperature in December: 9.8°C
The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 6.5°C
The month with the highest average low temperature is August (19.3°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).
Average pressure in December
Costa, Italy
- Average pressure in December: 1018.7mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The months with the lowest atmospheric pressure are April, May and July (1013.9mbar).
Average wind speed in December
Costa, Italy
- Average wind speed in December: 11km/h
The windiest month (with the highest average wind speed) is February (12.2km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in December
Costa, Italy
- Average humidity in December: 77%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Costa, Italy
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is November (118mm).
The driest month (with the least rainfall) is September (43mm).
Average rainfall days in December
Costa, Italy
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (11.3 days).
Average snowfall in December
Costa, Italy
- Average snowfall in December: 3mm
The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Costa, Italy
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Costa, Italy
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 30min
The months with the most sunshine are June and July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in December
Costa, Italy
- Average sunshine days in December: 15 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Costa, Italy
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Costa, Italy
- Average cloud cover in December: 40
The month with the most cloud cover is November (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Costa, Italy
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
