December Weather in Seymchan, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Seymchan, Russian Federation plunges to a frigid -33°C (-27°F). Expect extremes, as temperatures can dip as low as -49°C (-56°F) and occasionally reach a maximum of -17°C (2°F). During this chilly month, precipitation averages 17 mm (0.7 in) over 6 days, while the air remains saturated with a gripping 100% humidity. Prepare for an icy embrace!

December Temperature in Seymchan

In December in Seymchan, the average temperature is -33°C (-27°F). The maximum can reach -17°C (2°F), while the minimum can plummet to as low as -49°C (-56°F). Travelers should be prepared for extreme cold conditions during this time.

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

The chart illustrates December temperature patterns in Seymchan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seymchan, December typically has an average temperature of -33°C (-27°F), with highs reaching up to -17°C (2°F) and lows dropping to around -49°C (-56°F).
JanFebMarAprMayJunJulAugSepOctNovDec-30-22-518435861554318-6-27
Data source: Temperature data for Seymchan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Seymchan

In Seymchan in December, the precipitation amount is 17 mm (0.7 in) over a span of 6 days.

December Precipitation Trends in Seymchan

The chart displays monthly precipitation patterns in Seymchan, 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 Seymchan, December typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec211816133351746749325317
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Seymchan

In Seymchan in December humidity is 100%. With an average temperature of -33°C (-27°F), this humidity feels like an intense, biting cold that seeps through your layers, making every breath feel heavy and sharp; traveling becomes a challenge as the air clings to your skin, turning every step into a test of endurance against the icy embrace of the surroundings.

December Average Humidity in Seymchan

This chart illustrates the average monthly humidity levels in Seymchan, 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 Seymchan is approximately 100%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%99%96%88%83%84%84%88%90%96%101%100%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Seymchan

In Seymchan 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 Seymchan.

Maximum UV Index Levels in Seymchan for December

The chart shows the monthly maximum UV Index (UVI) for Seymchan 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 Seymchan typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112555753211
Data source: Seymchan 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 Seymchan Compares to Other Months

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

This table compares monthly weather conditions in Seymchan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-35°C (-30°F)21 mm (0.8 inches)99%low
February Weather-30°C (-21°F)18 mm (0.7 inches)99%low
March Weather-20°C (-5°F)16 mm (0.6 inches)95%low
April Weather-8°C (18°F)13 mm (0.5 inches)88%moderate
May Weather6°C (43°F)33 mm (1.3 inches)83%moderate
June Weather14°C (58°F)51 mm (2.0 inches)84%moderate
July Weather16°C (62°F)74 mm (2.9 inches)84%high
August Weather13°C (56°F)67 mm (2.6 inches)88%moderate
September Weather6°C (43°F)49 mm (1.9 inches)90%moderate
October Weather-8°C (18°F)32 mm (1.2 inches)96%low
November Weather-21°C (-6°F)53 mm (2.1 inches)101%low
December Weather-33°C (-27°F)17 mm (0.7 inches)100%low

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