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December Weather in Shintoku, Japan

Last updated: August 23, 2025

In December, the average temperature in Shintoku, Japan hovers around -6°C (22°F). Expect chilly days, with minimums plunging to -21°C (-6°F) and the occasional maximum reaching 11°C (52°F). Rain and snow combined contribute about 70 mm (2.8 in) of precipitation over 12 days, while the air maintains a brisk average humidity of 79%. Get ready for a winter experience!

December Temperature in Shintoku

In December in Shintoku, the average temperature is -6°C (22°F). Maximums can reach 11°C (52°F) and minimums can be as low as -21°C (-6°F). It's essential to pack warm clothing and be prepared for a range of temperatures while traveling.

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

The chart illustrates December temperature patterns in Shintoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shintoku, December typically has an average temperature of -6°C (22°F), with highs reaching up to 11°C (52°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec151829395257666559483521
Data source: Temperature data for Shintoku 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 Shintoku

In Shintoku in December, the precipitation amount is 70 mm (2.8 in) over the course of 12 days.

December Precipitation Trends in Shintoku

The chart displays monthly precipitation patterns in Shintoku, 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 Shintoku, December typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec526296969511710417712915610570
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Shintoku

In Shintoku in December, humidity is 79%. With an average temperature of -6°C (22°F), this humidity feels like a chilly dampness that seeps into your clothes, making every step you take feel heavier and more uncomfortable for traveling.

December Average Humidity in Shintoku

This chart illustrates the average monthly humidity levels in Shintoku, 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 Shintoku is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Shintoku

In Shintoku in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Shintoku, you can visit Hourly UV Index in Shintoku.

Maximum UV Index Levels in Shintoku for December

The chart shows the monthly maximum UV Index (UVI) for Shintoku 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 Shintoku typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236891010108632
Data source: Shintoku 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 Shintoku Compares to Other Months

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

This table compares monthly weather conditions in Shintoku, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)52 mm (2.0 inches)84%low
February Weather-8°C (18°F)62 mm (2.5 inches)83%moderate
March Weather-2°C (29°F)96 mm (3.8 inches)83%high
April Weather4°C (40°F)96 mm (3.8 inches)83%very high
May Weather11°C (52°F)95 mm (3.7 inches)86%very high
June Weather14°C (58°F)117 mm (4.6 inches)88%very high
July Weather19°C (66°F)104 mm (4.1 inches)93%very high
August Weather18°C (65°F)177 mm (7.0 inches)96%very high
September Weather15°C (59°F)129 mm (5.1 inches)89%very high
October Weather9°C (48°F)156 mm (6.2 inches)83%high
November Weather2°C (35°F)105 mm (4.1 inches)80%moderate
December Weather-6°C (22°F)70 mm (2.8 inches)79%low

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