December Weather in Istok, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Istok, Russian Federation hovers around -11°C (12°F). However, prepare for extremes, as it can drop to a chilling -31°C (-24°F) or peak at a brisk 5°C (42°F). Expect a moderate precipitation of 33 mm (1.3 in) over approximately 11 days, coupled with a high average humidity of 92%.

December Temperature in Istok

In December in Istok, the average temperature is -11°C (12°F), with maximums reaching 5°C (42°F) and minimums dropping to -31°C (-24°F). Travelers should be prepared for extremely cold weather conditions and dress appropriately to stay warm during their visit.

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

The chart illustrates December temperature patterns in Istok, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Istok, December typically has an average temperature of -11°C (12°F), with highs reaching up to 5°C (42°F) and lows dropping to around -31°C (-24°F).

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

December Precipitation in Istok

In Istok in December, the precipitation amount is 33 mm (1.3 in) over the course of 11 days.

December Precipitation Trends in Istok

The chart displays monthly precipitation patterns in Istok, 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 Istok, December typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Istok

In Istok in December, humidity is 92%. With an average temperature of -11°C (12°F), this humidity feels like a biting chill that cuts through layers of clothing, making traveling feel like trudging through an icy fog that clings to your skin, leaving you longing for warmth and comfort.

December Average Humidity in Istok

This chart illustrates the average monthly humidity levels in Istok, 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 Istok is approximately 92%, 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 Istok

In Istok 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 Istok.

Maximum UV Index Levels in Istok for December

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

Data source: Istok 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 Istok Compares to Other Months

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

This table compares monthly weather conditions in Istok, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-17°C (2°F)	12 mm (0.5 inches)	94%	low
February Weather	-16°C (4°F)	11 mm (0.4 inches)	91%	low
March Weather	-6°C (22°F)	14 mm (0.6 inches)	79%	moderate
April Weather	2°C (35°F)	13 mm (0.5 inches)	69%	moderate
May Weather	6°C (44°F)	34 mm (1.3 inches)	64%	high
June Weather	12°C (54°F)	33 mm (1.3 inches)	64%	very high
July Weather	16°C (62°F)	85 mm (3.3 inches)	76%	very high
August Weather	17°C (63°F)	84 mm (3.3 inches)	79%	high
September Weather	12°C (54°F)	94 mm (3.7 inches)	83%	moderate
October Weather	4°C (40°F)	37 mm (1.4 inches)	81%	moderate
November Weather	-4°C (25°F)	27 mm (1.1 inches)	83%	low
December Weather	-11°C (12°F)	33 mm (1.3 inches)	92%	low