December weather forecast and climate
Zagreb, Croatia

The iconic buildings of the cathedral in Zagreb, Croatia in an early autumn morning
The iconic buildings of the cathedral in Zagreb, Croatia in an early autumn morning

Weather in December

December, the first month of the winter, in Zagreb, is also a wintry month, with temperature in the range of an average low of -1.7°C (28.9°F) and an average high of 4.6°C (40.3°F).

Temperature

In December, the average high-temperature marginally drops, from a chilly 8.9°C (48°F) in November, to a wintry 4.6°C (40.3°F). In December, the average low-temperature is -1.7°C (28.9°F).

Humidity

With an average relative humidity of 84.8%, December is the most humid month in Zagreb.

Rainfall

In Zagreb, Croatia, it is raining for 11 days, with typically 59.6mm (2.35") of accumulated precipitation. Throughout the year, there are 135.6 rainfall days, and 840mm (33.07") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In December, snow falls for 6.7 days. Throughout the year, in Zagreb, Croatia, there are 29 snowfall days.

Daylight

The month with the shortest days is December, with an average of 8.7h of daylight.

Sunshine

With an average of 1.6h of sunshine, December has the least sunshine of the year in Zagreb.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Zagreb?

In Zagreb, Croatia, in December, the average high-temperature is 4.6°C (40.3°F), and the average low-temperature is -1.7°C (28.9°F).

What is the most humid month in Zagreb?

The most humid month in Zagreb is December, with an average relative humidity of 84.8%.

What is the average humidity in December in Zagreb?

In Zagreb, Croatia, the average relative humidity in December is 84.8%.

How many days does it rain in December in Zagreb?

In December, in Zagreb, the rain falls for 11 days. Throughout December, 59.6mm (2.35") of precipitation is accumulated.

How many days does it snow in December in Zagreb?

In Zagreb, Croatia, during December, snow falls for 6.7 days.

What is the month with the shortest days in Zagreb?

The month with the shortest days is December, with an average of 8.7h of daylight.

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

In Zagreb, Croatia, the average length of the day in December is 8.7h.

What is the month with the least sunshine in Zagreb?

December has the least sunshine of the year in Zagreb, with an average of 1.6h of sunshine.

How many hours of sunshine does Zagreb have in December?

The average sunshine in December in Zagreb is 1.6h.

What is the month with the lowest UV index in Zagreb?

Months with the lowest UV index in Zagreb, Croatia, are January, November and December, with an average maximum UV index of 1.

How high is the UV index in December in Zagreb?

In Zagreb, Croatia, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Zagreb, Croatia

Average temperature in December - Zagreb, Croatia
  • Average high temperature in December: 4.6°C

The warmest month (with the highest average high temperature) is July (26.7°C).
The month with the lowest average high temperature is January (3.7°C).

  • Average low temperature in December: -1.7°C

The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

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Average humidity in December
Zagreb, Croatia

Average humidity in December - Zagreb, Croatia
  • Average humidity in December: 84.8%

The month with the highest relative humidity is December (84.8%).
The month with the lowest relative humidity is April (67.5%).

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Average rainfall in December
Zagreb, Croatia

Average rainfall in December - Zagreb, Croatia
  • Average rainfall in December: 59.6mm

The wettest month (with the highest rainfall) is June (95.3mm).
The driest month (with the least rainfall) is February (38.9mm).

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Average rainfall days in December
Zagreb, Croatia

Average rainfall days in December - Zagreb, Croatia
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is June (13.7 days).
The month with the least rainy days is February (9.4 days).

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Average snowfall days in December
Zagreb, Croatia

Average snowfall days in December - Zagreb, Croatia
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is January (10.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Zagreb, Croatia

Average daylight in December / Average sunshine in December - Zagreb, Croatia
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 1.6h

The month with the most sunshine is July (Average sunshine: 8.9h).
The month with the least sunshine is December (Average sunshine: 1.6h).

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Average UV index in December
Zagreb, Croatia

Average UV index in December - Zagreb, Croatia
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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