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December Weather in Katsuragi, Japan

Last updated: August 23, 2025

In December, the average temperature in Katsuragi, Japan hovers around 6°C (44°F). Expect temperatures to range from a chilly -3°C (26°F) to a pleasant 22°C (72°F). Precipitation is moderate, with about 70 mm (2.8 in) over 8 days, while average humidity remains high at 83%. Embrace the unique climate that this season offers!

December Temperature in Katsuragi

In December in Katsuragi, the average temperature is 6°C (44°F). Maximums can reach 22°C (72°F) and minimums can be as low as -3°C (26°F). This makes it a versatile time for travelers, allowing for both mild and chilly experiences depending on the day.

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

The chart illustrates December temperature patterns in Katsuragi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katsuragi, December typically has an average temperature of 6°C (44°F), with highs reaching up to 22°C (72°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec394148576672798275645343
Data source: Temperature data for Katsuragi 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 Katsuragi

In Katsuragi in December, the total precipitation amount is 70 mm (2.8 in), spread over the course of 8 days.

December Precipitation Trends in Katsuragi

The chart displays monthly precipitation patterns in Katsuragi, 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 Katsuragi, December typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec60731291311571922901741812685170
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Katsuragi

In Katsuragi in December, humidity is 83%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and potentially leading to a sense of heaviness in the air.

December Average Humidity in Katsuragi

This chart illustrates the average monthly humidity levels in Katsuragi, 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 Katsuragi is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Katsuragi

In Katsuragi in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Katsuragi for better planning.

Maximum UV Index Levels in Katsuragi for December

The chart shows the monthly maximum UV Index (UVI) for Katsuragi 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 Katsuragi typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121210764
Data source: Katsuragi 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 Katsuragi Compares to Other Months

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

This table compares monthly weather conditions in Katsuragi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)60 mm (2.4 inches)82%moderate
February Weather5°C (41°F)73 mm (2.9 inches)79%high
March Weather9°C (49°F)128 mm (5.1 inches)74%very high
April Weather14°C (57°F)131 mm (5.1 inches)76%extreme
May Weather19°C (66°F)157 mm (6.2 inches)83%extreme
June Weather22°C (72°F)192 mm (7.6 inches)87%extreme
July Weather26°C (80°F)290 mm (11.4 inches)93%extreme
August Weather28°C (83°F)174 mm (6.8 inches)91%extreme
September Weather24°C (75°F)181 mm (7.1 inches)87%very high
October Weather18°C (64°F)268 mm (10.6 inches)85%high
November Weather12°C (53°F)51 mm (2.0 inches)83%high
December Weather6°C (44°F)70 mm (2.8 inches)83%moderate

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