December Weather in Grad, Slovenia

Last updated: August 27, 2025

In Grad, Slovenia, the average temperature in December hovers around 2°C (36°F). During this time, temperatures can dip to a chilling -7°C (20°F) or rise to a pleasant 17°C (62°F). Expect 58 mm (2.3 in) of precipitation spread over 8 days, and prepare for a notably high average humidity of 89%.

December Temperature in Grad

In December in Grad, the average temperature is 2°C (36°F), with maximums reaching 17°C (62°F) and minimums dropping as low as -7°C (20°F). It's advisable to pack layers and be prepared for a mix of chilly and mild weather.

December Weather in Grad: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Grad, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grad, December typically has an average temperature of 2°C (36°F), with highs reaching up to 17°C (62°F) and lows dropping to around -7°C (20°F).

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

December Precipitation in Grad

In Grad in December, the precipitation amount is 58 mm (2.3 in) over a span of 8 days.

December Precipitation Trends in Grad

The chart displays monthly precipitation patterns in Grad, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Grad, December typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Grad

In Grad in December, humidity is 89%. With an average temperature of 2°C (36°F), this humidity feels like an uncomfortable chill that clings to your skin, making outdoor activities feel even colder and less inviting for traveling.

December Average Humidity in Grad

This chart illustrates the average monthly humidity levels in Grad, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Grad is approximately 89%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Grad

In Grad in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Grad.

Maximum UV Index Levels in Grad for December

The chart shows the monthly maximum UV Index (UVI) for Grad in December, 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 December, the maximum UV index in Grad typically reaches 1, which falls under the low exposure category.

Data source: Grad December 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 December Weather in Grad Compares to Other Months

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

This table compares monthly weather conditions in Grad, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	26 mm (1.0 inches)	90%	low
February Weather	4°C (39°F)	43 mm (1.7 inches)	84%	moderate
March Weather	7°C (44°F)	36 mm (1.4 inches)	78%	moderate
April Weather	12°C (53°F)	49 mm (1.9 inches)	73%	high
May Weather	16°C (60°F)	115 mm (4.5 inches)	71%	very high
June Weather	21°C (70°F)	90 mm (3.5 inches)	73%	very high
July Weather	22°C (72°F)	84 mm (3.3 inches)	70%	very high
August Weather	22°C (72°F)	90 mm (3.5 inches)	60%	very high
September Weather	17°C (63°F)	110 mm (4.3 inches)	65%	high
October Weather	12°C (54°F)	55 mm (2.1 inches)	84%	moderate
November Weather	7°C (44°F)	72 mm (2.8 inches)	89%	low
December Weather	2°C (36°F)	58 mm (2.3 inches)	89%	low