December Weather in Synya, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Synya, Russian Federation hovers around -12°C (11°F). However, temperatures can plunge to a chilling -43°C (-44°F), while occasionally reaching a maximum of 1°C (34°F). Expect 17 days of precipitation, accumulating about 65 mm (2.5 in), and prepare for an atmosphere with 100% average humidity.

December Temperature in Synya

In December in Synya, the average temperature is -12°C (11°F), with maximums reaching up to 1°C (34°F) and minimums plummeting as low as -43°C (-44°F), making it essential to pack warm clothing and prepare for extreme cold if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Synya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Synya, December typically has an average temperature of -12°C (11°F), with highs reaching up to 1°C (34°F) and lows dropping to around -43°C (-44°F).

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

December Precipitation in Synya

In Synya in December, the total precipitation amount is 65 mm (2.5 in) over the course of 17 days.

December Precipitation Trends in Synya

The chart displays monthly precipitation patterns in Synya, 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 Synya, December typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 17 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 Synya

In Synya in December humidity is 100%. With an average temperature of -12°C (11°F), this humidity feels like a biting chill that penetrates your clothes, making every breath feel heavy as you walk through the frosty air, turning your travels into a frosty adventure where each step is a reminder of the harsh conditions surrounding you.

December Average Humidity in Synya

This chart illustrates the average monthly humidity levels in Synya, 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 Synya is approximately 100%, 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 Synya

In Synya 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 Synya.

Maximum UV Index Levels in Synya for December

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

Data source: Synya 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 Synya Compares to Other Months

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

This table compares monthly weather conditions in Synya, 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)	44 mm (1.7 inches)	101%	low
February Weather	-16°C (4°F)	44 mm (1.7 inches)	99%	low
March Weather	-9°C (17°F)	68 mm (2.7 inches)	95%	moderate
April Weather	-2°C (28°F)	64 mm (2.5 inches)	89%	moderate
May Weather	4°C (39°F)	79 mm (3.1 inches)	81%	moderate
June Weather	10°C (51°F)	84 mm (3.3 inches)	82%	moderate
July Weather	17°C (63°F)	97 mm (3.8 inches)	85%	high
August Weather	13°C (55°F)	126 mm (5.0 inches)	88%	moderate
September Weather	7°C (45°F)	90 mm (3.6 inches)	92%	moderate
October Weather	0°C (32°F)	94 mm (3.7 inches)	98%	low
November Weather	-8°C (18°F)	86 mm (3.4 inches)	101%	low
December Weather	-12°C (11°F)	65 mm (2.5 inches)	100%	low