January Weather in Sinj, Croatia

Last updated: August 23, 2025

In January, the average temperature in Sinj, Croatia hovers around 1°C (34°F). Expect a minimum plunge to -20°C (-3°F) and a maximum rise to 14°C (58°F). Over the course of this month, precipitation totals 111 mm (4.4 in) spread over 10 days, accompanied by an average humidity level of 83%.

January Temperature in Sinj

In January in Sinj, the average temperature is 1°C (34°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures during this time, so layering and appropriate clothing are essential.

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

The chart illustrates January temperature patterns in Sinj, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinj, January typically has an average temperature of 1°C (34°F), with highs reaching up to 14°C (58°F) and lows dropping to around -20°C (-3°F).

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

January Precipitation in Sinj

In Sinj in January, the precipitation amount is 111 mm (4.4 in) over a span of 10 days.

January Precipitation Trends in Sinj

The chart displays monthly precipitation patterns in Sinj, 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 Sinj, January typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Sinj

In Sinj in January, humidity is 83%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel uncomfortable as the damp cold seeps into your bones, adding an extra layer of heaviness to the air that can leave you feeling sluggish and fatigued.

January Average Humidity in Sinj

This chart illustrates the average monthly humidity levels in Sinj, 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 Sinj 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 Sinj

In Sinj 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 Sinj, you can visit Hourly UV Index in Sinj.

Maximum UV Index Levels in Sinj for January

The chart shows the monthly maximum UV Index (UVI) for Sinj 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 Sinj typically reaches 2, which falls under the low exposure category.

Data source: Sinj 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 Sinj Compares to Other Months

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

This table compares monthly weather conditions in Sinj, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	111 mm (4.4 inches)	83%	low
February Weather	4°C (40°F)	139 mm (5.5 inches)	76%	moderate
March Weather	6°C (43°F)	121 mm (4.8 inches)	73%	high
April Weather	10°C (50°F)	113 mm (4.4 inches)	75%	high
May Weather	14°C (58°F)	125 mm (4.9 inches)	78%	very high
June Weather	19°C (67°F)	68 mm (2.7 inches)	75%	very high
July Weather	22°C (71°F)	55 mm (2.2 inches)	71%	very high
August Weather	22°C (72°F)	52 mm (2.0 inches)	65%	very high
September Weather	17°C (63°F)	105 mm (4.1 inches)	69%	high
October Weather	12°C (54°F)	128 mm (5.1 inches)	76%	moderate
November Weather	8°C (47°F)	245 mm (9.6 inches)	81%	moderate
December Weather	4°C (39°F)	248 mm (9.8 inches)	81%	low