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December Weather in Fastiv, Ukraine

Last updated: August 28, 2025

In December, the average temperature in Fastiv, Ukraine hovers around 0°C (32°F). Expect the mercury to dip as low as -17°C (2°F), while occasionally rising to a maximum of 12°C (54°F). This month also brings 69 mm (2.7 in) of precipitation over approximately 14 days, accompanied by a high average humidity level of 91%.

December Temperature in Fastiv

In December in Fastiv, the average temperature is 0°C (32°F). Maximums can reach 12°C (54°F), and minimums can be as low as -17°C (2°F). This climate suggests that travelers should prepare for cold temperatures and dress in layers to stay warm while exploring the region.

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

The chart illustrates December temperature patterns in Fastiv, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fastiv, December typically has an average temperature of 0°C (32°F), with highs reaching up to 12°C (54°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec273037495969706960503832
Data source: Temperature data for Fastiv 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 Fastiv

In Fastiv in December, the precipitation amount is 69 mm (2.7 in) over the course of 14 days.

December Precipitation Trends in Fastiv

The chart displays monthly precipitation patterns in Fastiv, 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 Fastiv, December typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec374439297553904540473669
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fastiv

In Fastiv in December, humidity is 91%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that penetrates your clothes, making every movement feel heavy and uncomfortable for traveling.

December Average Humidity in Fastiv

This chart illustrates the average monthly humidity levels in Fastiv, 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 Fastiv is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%88%79%68%70%64%51%61%82%90%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fastiv

In Fastiv 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 Fastiv.

Maximum UV Index Levels in Fastiv for December

The chart shows the monthly maximum UV Index (UVI) for Fastiv 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 Fastiv typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec225678876421
Data source: Fastiv 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 Fastiv Compares to Other Months

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

This table compares monthly weather conditions in Fastiv, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)37 mm (1.5 inches)91%low
February Weather-1°C (30°F)44 mm (1.7 inches)90%low
March Weather3°C (38°F)39 mm (1.5 inches)88%moderate
April Weather9°C (49°F)29 mm (1.2 inches)79%high
May Weather15°C (59°F)75 mm (3.0 inches)68%high
June Weather21°C (69°F)53 mm (2.1 inches)70%very high
July Weather21°C (70°F)90 mm (3.6 inches)64%very high
August Weather21°C (69°F)45 mm (1.8 inches)51%high
September Weather16°C (61°F)40 mm (1.6 inches)61%high
October Weather10°C (50°F)47 mm (1.8 inches)82%moderate
November Weather3°C (39°F)36 mm (1.4 inches)90%low
December Weather0°C (32°F)69 mm (2.7 inches)91%low

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