December weather forecast
Grevena, Greece

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Weather in December

December in Grevena unfolds under winter's reign. The city is greeted with a drop in temperature, turning the cityscape into a mesmerizing winter wonderland. The increasingly frosty weather is interspersed with periods of snowfall, culminating in a truly festive atmosphere. With snowfall reaching 128mm (5.04"), it's clear that winter has made its grand comeback to the city of Grevena. As the year winds down, residents immerse themselves in the festive spirit, enjoying the cheerful ambiance of December.

Temperature

During the transition into December, Grevena observes a decrease in the average high-temperature, falling from a fresh 12.5°C (54.5°F) in November to a frosty 7.4°C (45.3°F). Throughout December nights, Grevena experiences a consistent temperature average of 0.4°C (32.7°F).

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Grevena, in December, during 8.7 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, there are 154.9 rainfall days, and 716mm (28.19") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Grevena, in December, snow falls for 5.2 days, with typically accumulated 128mm (5.04") of snow. In Grevena, during the entire year, snow falls for 26.4 days and aggregates up to 846mm (33.31") of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 07:37 and sunset at 17:09. On the last day of December, sunrise is at 07:56 and sunset at 17:18 EET.

Sunshine

In Grevena, the average sunshine in December is 5.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What is the usual temperature for Grevena in December?

In December, the average high-temperature and low-temperature are 7.4°C (45.3°F) and 0.4°C (32.7°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 29°C (84.2°F).

What is the average humidity in December in Grevena?

In Grevena, the average relative humidity in December is 80%.

How many days does it rain in December?

In Grevena, during December, the rain falls for 8.7 days and regularly aggregates up to 55mm (2.17") of precipitation.

How much does it snow in December?

In Grevena, in December, snow falls for 5.2 days, with typically accumulated 128mm (5.04") of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 23min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 07:37 and sunset at 17:09. On the last day of the month, sunrise is at 07:56 and sunset at 17:18 EET.

How many hours of sunshine does Grevena have in December?

The average sunshine duration in December is 5.7h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Grevena, Greece

Average temperature in December - Grevena, Greece
  • Average high temperature in December: 7.4°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (5.2°C).

  • Average low temperature in December: 0.4°C

The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-1.5°C).

Average pressure in December
Grevena, Greece

Average pressure in December - Grevena, Greece
  • Average pressure in December: 1019mbar

The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (1012.6mbar).

Average wind speed in December
Grevena, Greece

Average wind speed in December - Grevena, Greece
  • Average wind speed in December: 6.8km/h

The windiest months (with the highest average wind speed) are February and March (7.8km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).

Average humidity in December
Grevena, Greece

Average humidity in December - Grevena, Greece
  • Average humidity in December: 80%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (56%).

Average rainfall in December
Grevena, Greece

Average rainfall in December - Grevena, Greece
  • Average rainfall in December: 55mm

The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is August (39mm).

Average rainfall days in December
Grevena, Greece

Average rainfall days in December - Grevena, Greece
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in December
Grevena, Greece

Average snowfall in December - Grevena, Greece
  • Average snowfall in December: 128mm

The month with the highest snowfall is January (212mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Grevena, Greece

Average snowfall days in December - Grevena, Greece
  • Average snowfall days in December: 5.2 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Grevena, Greece

Average daylight in December / Average sunshine in December - Grevena, Greece
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in December
Grevena, Greece

Average sunshine days in December - Grevena, Greece
  • Average sunshine days in December: 17.5 days

The months with the most sunshine days are October and December (17.5 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in December
Grevena, Greece

Average UV index in December - Grevena, Greece
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Grevena, Greece

Average cloud cover in December - Grevena, Greece
  • Average cloud cover in December: 41

The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Grevena, Greece

Average visibility in December - Grevena, Greece
  • Average visibility in December: 8km

The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (7km).

Grevena, Greece

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