January Weather in Kostanje, Croatia

Last updated: August 23, 2025

In January, the average temperature in Kostanje, Croatia hovers around 5°C (42°F), with a minimum dipping as low as -10°C (15°F) and a maximum reaching 15°C (59°F). Expect about 101 mm (4.0 in) of precipitation spread across 10 days, contributing to the average humidity of 83%. Stay prepared for a mix of chilly days and occasional rain!

January Temperature in Kostanje

In January in Kostanje, the average temperature is 5°C (42°F). Maximum temperatures can reach 15°C (59°F), while minimums can drop as low as -10°C (15°F). Be sure to pack warm layers and prepare for chilly conditions when traveling to Kostanje during this time.

January Weather in Kostanje: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Kostanje, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostanje, January typically has an average temperature of 5°C (42°F), with highs reaching up to 15°C (59°F) and lows dropping to around -10°C (15°F).

Data source: Temperature data for Kostanje generated using information from the Copernicus Climate Change Service.

January Precipitation in Kostanje

In Kostanje in January, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.

January Precipitation Trends in Kostanje

The chart displays monthly precipitation patterns in Kostanje, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Kostanje, January typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Kostanje

In Kostanje in January, humidity is 83%. With an average temperature of 5°C (42°F), this humidity feels like a heavy blanket wrapping around you, making even the simplest outdoor activities feel exhausting and uncomfortable for traveling.

January Average Humidity in Kostanje

This chart illustrates the average monthly humidity levels in Kostanje, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Kostanje is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Kostanje

In Kostanje in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Kostanje, you can visit Hourly UV Index in Kostanje.

Maximum UV Index Levels in Kostanje for January

The chart shows the monthly maximum UV Index (UVI) for Kostanje in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Kostanje typically reaches 2, which falls under the low exposure category.

Data source: Kostanje January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Kostanje Compares to Other Months

Weather in Kostanje varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Kostanje, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kostanje, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	101 mm (4.0 inches)	83%	low
February Weather	7°C (46°F)	114 mm (4.5 inches)	76%	moderate
March Weather	9°C (49°F)	100 mm (3.9 inches)	73%	high
April Weather	13°C (55°F)	89 mm (3.5 inches)	75%	high
May Weather	17°C (63°F)	84 mm (3.3 inches)	78%	very high
June Weather	22°C (71°F)	42 mm (1.6 inches)	75%	very high
July Weather	24°C (75°F)	31 mm (1.2 inches)	71%	very high
August Weather	25°C (77°F)	29 mm (1.2 inches)	65%	very high
September Weather	20°C (69°F)	92 mm (3.6 inches)	69%	high
October Weather	15°C (60°F)	109 mm (4.3 inches)	76%	moderate
November Weather	12°C (54°F)	238 mm (9.4 inches)	81%	moderate
December Weather	8°C (46°F)	230 mm (9.0 inches)	81%	low