December weather forecastRyakia, Greece

December

Weather in December

December, the first month of the winter in Ryakia, is also a fresh month, with an average temperature varying between 3.9°C (39°F) and 10.4°C (50.7°F).

Temperature

Ryakia's December weather shows a modest shift in high-temperatures, falling from November's refreshing 15.3°C (59.5°F) to a fresh 10.4°C (50.7°F). December nights are marked by an average temperature drop to a wintry 3.9°C (39°F).

Humidity

The average relative humidity in December is 73%.

Rainfall

In Ryakia, in December, it is raining for 9.1 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, there are 147.9 rainfall days, and 566mm (22.28") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Ryakia, during December, snow falls for 0.8 days and regularly aggregates up to 11mm (0.43") of snow. In Ryakia, during the entire year, snow falls for 4.9 days and aggregates up to 91mm (3.58") of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December in Ryakia, sunrise is at 07:34 and sunset at 17:04. On the last day of the month, sunrise is at 07:53 and sunset at 17:13 EET.

Sunshine

In December, the average sunshine is 6.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 in December translates into these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. 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.

Frequently asked questions

The average high-temperature and low-temperature during December are 10.4°C (50.7°F) and 3.9°C (39°F) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 33°C (91.4°F).

In December, the average relative humidity is 73%.

In December, the rain falls for 9.1 days. Throughout December, 47mm (1.85") of precipitation is accumulated.

In Ryakia, in December, snow falls for 0.8 days, with typically accumulated 11mm (0.43") of snow.

With an average of 9h and 18min of daylight, December has the shortest days of the year.

In Ryakia, Greece, the average day length in December is 9h and 21min.

On the first day of December, sunrise is at 07:34 and sunset at 17:04. On the last day of the month, sunrise is at 07:53 and sunset at 17:13 EET.

In Ryakia, Greece, the average sunshine duration in December is 6.1h.

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

In Ryakia, Greece, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ryakia, Greece

  • Average high temperature in December: 10.4°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°C).

  • Average low temperature in December: 3.9°C

The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

Average pressure in December
Ryakia, Greece

  • Average pressure in December: 1019.5mbar

The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is July (1013mbar).

Average wind speed in December
Ryakia, Greece

  • Average wind speed in December: 8km/h

The windiest month (with the highest average wind speed) is February (8.9km/h).
The calmest month (with the lowest average wind speed) is November (7.2km/h).

Average humidity in December
Ryakia, Greece

  • Average humidity in December: 73%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (54%).

Average rainfall in December
Ryakia, Greece

  • Average rainfall in December: 47mm

The wettest month (with the highest rainfall) is November (76mm).
The driest month (with the least rainfall) is May (36mm).

Average rainfall days in December
Ryakia, Greece

  • Average rainfall days in December: 9.1 days

The months with the highest number of rainy days are March and May (14.7 days).
The month with the least rainy days is December (9.1 days).

Average snowfall in December
Ryakia, Greece

  • Average snowfall in December: 11mm

The month with the highest snowfall is January (39mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Ryakia, Greece

  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is January (2.1 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
Ryakia, Greece

  • Average daylight in December: 9h and 18min

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 18min).

  • Average sunshine in December: 6h and 6min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in December
Ryakia, Greece

  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is June (12 days).

Average UV index in December
Ryakia, Greece

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Ryakia, Greece

  • Average cloud cover in December: 34

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Ryakia, Greece

  • Average visibility in December: 9km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).