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
December signals a slight drop in average high-temperature, sliding from November's comfortable 17.7°C (63.9°F) to a moderate 13.7°C (56.7°F). Throughout December, Marathonas's nights experience a slight temperature dip to a frosty 9.2°C (48.6°F).Humidity
In Marathonas, Greece, the average relative humidity in December is 73%.Rainfall
The months with the most rainfall are January and December, with an average 49mm (1.93") of precipitation.Snowfall
March through December are months without snowfall.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:22 and sunset at 17:04. On the last day of the month, sunrise is at 07:40 and sunset at 17:14 EET.
Sunshine
In December, the average sunshine in Marathonas is 5.7h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the temperature in December in Marathonas?
What is the average humidity in December in Marathonas?
What is the wettest month in Marathonas?
How much does it rain in Marathonas in December?
When it does not snow in Marathonas?
Does it snow in Marathonas in December?
What is the month with the shortest days in Marathonas?
How many hours of daylight does Marathonas have in December?
When is the sunrise / sunset in December in Marathonas?
How many hours of sunshine does Marathonas have in December?
When is the lowest UV index in Marathonas?
What is the UV index reading in December in Marathonas?
Average temperature in December
Marathonas, Greece
- Average high temperature in December: 13.7°C
The warmest months (with the highest average high temperature) are July and August (30.3°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in December: 9.2°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is January (7.5°C).
Average pressure in December
Marathonas, Greece
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011mbar).
Average wind speed in December
Marathonas, Greece
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is August (17.1km/h).
The calmest month (with the lowest average wind speed) is May (11.8km/h).
Average humidity in December
Marathonas, Greece
- Average humidity in December: 73%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Marathonas, Greece
- Average rainfall in December: 49mm
The wettest months (with the highest rainfall) are January and December (49mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in December
Marathonas, Greece
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is December (12.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in December
Marathonas, Greece
- Average snowfall in December: 0mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Marathonas, Greece
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Marathonas, Greece
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 4min
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 30min).
Average sunshine days in December
Marathonas, Greece
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is January (15.9 days).
Average UV index in December
Marathonas, Greece
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Marathonas, Greece
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Marathonas, Greece
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Marathonas, Greece
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