December weather forecastVartholomio, Greece

December

Weather in December

The first month of the winter, December, is also a moderate month in Vartholomio, Greece, with an average temperature fluctuating between 15.1°C (59.2°F) and 10.9°C (51.6°F).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's 19.4°C (66.9°F) to a still refreshing 15.1°C (59.2°F). During December, Vartholomio's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a fresh 10.9°C (51.6°F).

Humidity

In Vartholomio, the average relative humidity in December is 71%.

Rainfall

In Vartholomio, in December, during 15.9 rainfall days, 88mm (3.46") of precipitation is typically accumulated. Throughout the year, in Vartholomio, Greece, there are 131 rainfall days, and 627mm (24.69") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 07:32 and sunset at 17:16. On the last day of December, in Vartholomio, sunrise is at 07:50 and sunset at 17:26 EET.

Sunshine

In Vartholomio, the average sunshine in December is 6.3h.

UV index

The month with the lowest UV index in Vartholomio is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

In Vartholomio, 15.1°C (59.2°F) is the average high-temperature and 10.9°C (51.6°F) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 29°C (84.2°F).

In Vartholomio, the average relative humidity in December is 71%.

In December, in Vartholomio, the rain falls for 15.9 days. Throughout December, 88mm (3.46") of precipitation is accumulated.

The month with the shortest days is December, with an average of 9h and 36min of daylight.

In December, the average day length is 9h and 35min.

On the first day of December in Vartholomio, sunrise is at 07:32 and sunset at 17:16. On the last day of the month, sunrise is at 07:50 and sunset at 17:26 EET.

In Vartholomio, the average sunshine duration in December is 6.3h.

With an average maximum UV index of 3, December is the month with the lowest UV index.

In Vartholomio, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Vartholomio, Greece

  • Average high temperature in December: 15.1°C

The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (13.2°C).

  • Average low temperature in December: 10.9°C

The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).

Average pressure in December
Vartholomio, Greece

  • Average pressure in December: 1018.3mbar

The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).

Average wind speed in December
Vartholomio, Greece

  • Average wind speed in December: 13.7km/h

The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest months (with the lowest average wind speed) are May and June (10.7km/h).

Average humidity in December
Vartholomio, Greece

  • Average humidity in December: 71%

The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (60%).

Average rainfall in December
Vartholomio, Greece

  • Average rainfall in December: 88mm

The wettest month (with the highest rainfall) is January (117mm).
The driest month (with the least rainfall) is August (3mm).

Average rainfall days in December
Vartholomio, Greece

  • Average rainfall days in December: 15.9 days

The month with the highest number of rainy days is January (17.1 days).
The month with the least rainy days is August (2.3 days).

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

  • Average daylight in December: 9h and 36min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 18min

The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in December
Vartholomio, Greece

  • Average sunshine days in December: 13.5 days

The months with the most sunshine days are July and August (27.2 days).
The month with the least sunshine days is February (11.4 days).

Average UV index in December
Vartholomio, Greece

  • Average UV index in December: 3

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 3).

Average cloud cover in December
Vartholomio, Greece

  • Average cloud cover in December: 33

The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in December
Vartholomio, 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).