Zagreb
Croatia
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Zagreb, Croatia

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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
December is officially the beginning of the cold winter season in Zagreb. The temperatures plunge in the average range of -1.7°C (28.9°F) to 5°C (41°F) as strong winds up the chilliness quotient.
Snowfall is common during the shortest days of the year, with only 9 hours of daylight. The gloomy skies witness the sun for hardly 1.6 hours a day, and the ground becomes hard and even white at times. The rain is moderate at 58.4mm (2.3") and is frequently icy.
Christmas keeps the festive spirits up, but it mandates warm coats, gloves, and caps.
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  • The 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).

  • The 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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  • The 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%).

  • The average rainfall in December: 59.6mm

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

  • The 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 lowest number of rainy days is February (9.4 days).

  • The 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 lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • The average daylight in December: 9h

The month with the longest days is June (Average daylight: 16h).
Months with shortest days are January, November and December (Average daylight: 9h).

  • The average sunshine in December: 1.6h

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

  • The 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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