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 transition into December subtly indicates a reduction in the average high-temperature, down to a cool 10.1°C (50.2°F) from November's moderate 15°C (59°F). Mega Dereio in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 5.5°C (41.9°F).Humidity
In Mega Dereio, Greece, the average relative humidity in December is 76%.Rainfall
In December, in Mega Dereio, Greece, the rain falls for 13.5 days. Throughout December, 61mm (2.4") of precipitation is accumulated. Throughout the year, in Mega Dereio, there are 139.1 rainfall days, and 598mm (23.54") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Mega Dereio, Greece. In Mega Dereio, in December, snow falls for 0.5 days, with typically accumulated 6mm (0.24") of snow. Throughout the year, there are 5.1 snowfall days, and 31mm (1.22") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 07:22 and sunset at 16:47. On the last day of December, in Mega Dereio, sunrise is at 07:41 and sunset at 16:56 EET.
Sunshine
In December, the average sunshine in Mega Dereio is 5.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Mega Dereio in December?
What is the average humidity in December in Mega Dereio?
How many days does it rain in December in Mega Dereio?
How many days does it snow in December in Mega Dereio?
What is the month with the shortest days in Mega Dereio?
What is the average length of the day in December in Mega Dereio?
What time are sunrise and sunset in December in Mega Dereio?
How many hours of sunshine does Mega Dereio have in December?
What is the month with the lowest UV index in Mega Dereio?
How high is the UV index in December in Mega Dereio?
Average temperature in December
Mega Dereio, Greece
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in December: 5.5°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).
Average pressure in December
Mega Dereio, Greece
- Average pressure in December: 1019.3mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in December
Mega Dereio, Greece
- Average wind speed in December: 17.8km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in December
Mega Dereio, Greece
- Average humidity in December: 76%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Mega Dereio, Greece
- Average rainfall in December: 61mm
The wettest month (with the highest rainfall) is January (89mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in December
Mega Dereio, Greece
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is March (15.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in December
Mega Dereio, Greece
- Average snowfall in December: 6mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Mega Dereio, Greece
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mega Dereio, Greece
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Mega Dereio, Greece
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in December
Mega Dereio, Greece
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Mega Dereio, Greece
- Average cloud cover in December: 43
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Mega Dereio, Greece
- 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).
Mega Dereio, Greece
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