Thessaloniki
Greece
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Thessaloniki, Greece

A street in front of the ancient white tower in Thessaloniki, Greece, in a park of trees
A street in front of the ancient white tower in Thessaloniki, Greece, in a park of trees
The first month of the winter, December, is also a fresh month in Thessaloniki, Greece, with temperature in the range of an average high of 11°C (51.8°F) and an average low of 3°C (37.4°F).

Temperature

In Thessaloniki, the average high-temperature marginally drops, from a moderate 15.4°C (59.7°F) in November, to a fresh 11°C (51.8°F). The average low-temperature, in December, is 3°C (37.4°F).

Rainfall

December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 54.9mm (2.2") of precipitation.

Sea temperature

In December, the average sea temperature in Thessaloniki is 14.9°C (58.8°F). Swimming in 14.9°C (58.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

December has the shortest days of the year in Thessaloniki, with an average of 9.3h of daylight.

Sunshine

The average sunshine in Thessaloniki is 3.3h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for average individuals.
The daily maximum UV index of 1 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Thessaloniki?

In Thessaloniki, Greece, in December, the average high-temperature is 11°C (51.8°F), and the average low-temperature is 3°C (37.4°F).

How much does it rain in Thessaloniki in December?

In Thessaloniki, Greece, during December, the rain falls for 12.5 days and regularly aggregates up to 54.9mm (2.2") of precipitation.

What is the rainiest month in Thessaloniki?

December is the month with the most rainfall in Thessaloniki. Rain falls for 12.5 days and accumulates 54.9mm (2.2") of precipitation.

What is the sea water temperature in December in Thessaloniki?

In Thessaloniki, Greece, the average seawater temperature in December is 14.9°C (58.8°F). Swimming in 14.9°C (58.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Thessaloniki?

December has the shortest days of the year, with an average of 9.3h of daylight.

What is the average length of the day in December in Thessaloniki?

In December, the average length of the day in Thessaloniki is 9.3h.

How many hours of sunshine does Thessaloniki have in December?

In Thessaloniki, Greece, the average sunshine in December is 3.3h.

When is the lowest UV index in Thessaloniki?

With an average maximum UV index of 1, December is the month with the lowest UV index in Thessaloniki, Greece.

How high is the UV index in December in Thessaloniki?

In December, the average daily maximum UV index in Thessaloniki, Greece, is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Thessaloniki, Greece
  • Average high temperature in December: 11°C

The warmest month (with the highest average high temperature) is July (31.5°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in December: 3°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average rainfall in December - Thessaloniki, Greece
  • Average rainfall in December: 54.9mm

The wettest month (with the highest rainfall) is December (54.9mm).
The driest month (with the lowest rainfall) is August (20.4mm).

Average rainfall days in December - Thessaloniki, Greece
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is December (12.5 days).
The month with the lowest number of rainy days is August (4.7 days).

Average sea temperature in December - Thessaloniki, Greece
  • Average sea temperature in December: 14.9°C

The best month for swimming (with the highest average sea temperature) is July (26.2°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).

Average daylight in December / Average sunshine in December - Thessaloniki, Greece
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 3.3h

The month with most sunshine is July (Average sunshine: 10.5h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in December - Thessaloniki, Greece
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).