January weather - Winter 2024

Weather in January
Frequently asked questions
Average temperature in January
Average humidity in January
Average rainfall in January
Average rainfall days in January
Average snowfall days in January
Average daylight in January
Average sunshine in January
Average UV index in January

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

Weather in January

In Zagreb, the chill of winter extends well into the new year, marking January as the month with the coldest average minimum temperature at minus 3°C (37.4°F). Snowfall is quite frequent this month, dressing the city in white. The high humidity level adds a certain dampness to the air. Comparatively, February sees slightly less precipitation and a modest increase in temperature. Despite the chilly conditions, January's weather adds a magical charm to the city of Zagreb.

Temperature

With average high and low temperatures of 3.7°C (38.7°F) and -3°C (26.6°F) respectively, January is Zagreb's coldest month.

Humidity

In January, the average relative humidity is 82.5%.

Rainfall

In January, the rain falls for 9.8 days. Throughout January, 43mm (1.69") of precipitation is accumulated. 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. January has the most snowfall days of the year in Zagreb, Croatia. Snow falls for 10.3 days.

Daylight

The average length of the day in January is 9h and 9min.
On the first day of January in Zagreb, sunrise is at 07:37 and sunset at 16:21. On the last day of the month, sunrise is at 07:19 and sunset at 16:59 CET.

Sunshine

In January, the average sunshine is 1.8h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Zagreb. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 1 during January, leads to the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

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Frequently asked questions

What month is the coldest in Zagreb?

In Zagreb, the average lowest temperatures are observed in January, with a high of 3.7°C (38.7°F) and a low of -3°C (26.6°F).

How cold is January in Zagreb?

The average high-temperature, in January, in Zagreb, is 3.7°C (38.7°F), while the average low-temperature is -3°C (26.6°F).

What is the average humidity in January in Zagreb?

In Zagreb, Croatia, the average relative humidity in January is 82.5%.

How much does it rain in Zagreb in January?

In Zagreb, during January, the rain falls for 9.8 days and regularly aggregates up to 43mm (1.69") of precipitation.

When does it snow the most in Zagreb?

The month with the most snowfall days in Zagreb is January, when snow falls for 10.3 days.

How many days does it snow in January in Zagreb?

In Zagreb, Croatia, during January, snow falls for 10.3 days.

How many hours of daylight does Zagreb have in January?

The average day length in January in Zagreb is 9h and 9min.

When is the sunrise / sunset in January in Zagreb?

On the first day of January in Zagreb, Croatia, sunrise is at 07:37 and sunset at 16:21. On the last day of the month, sunrise is at 07:19 and sunset at 16:59 CET.

How long on average sun shines in January in Zagreb?

In Zagreb, the average sunshine duration in January is 1.8h.

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

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

What is the UV index intensity in January in Zagreb?

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

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

4.6°C 40.3°F

3.7°C 38.7°F

6.8°C 44.2°F

Average low temperature

Average humidity

Average rainfall

Average rainfall days

9.8

9.4

Average snowfall days

Average daylight

Average sunshine

Average UV index

Average temperature in January
Zagreb, Croatia

Average high temperature in January: 3.7°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 January: -3°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 January
Zagreb, Croatia

Average humidity in January: 82.5%

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 January
Zagreb, Croatia

Average rainfall in January: 43.2mm

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 January
Zagreb, Croatia

Average rainfall days in January: 9.8 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 January
Zagreb, Croatia

Average snowfall days in January: 10.3 days

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

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

Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

Average sunshine in January: 1h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

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Average UV index in January
Zagreb, Croatia

Average UV index in January: 1

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

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January weather forecast
Zagreb, Croatia

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