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December Weather in Kuroishi, Japan

Last updated: August 23, 2025

In December, the average temperature in Kuroishi, Japan hovers around 1°C (33°F). Expect a chilly range, with minimums dipping to -8°C (17°F) and maximums reaching 13°C (56°F). It's also a relatively wet month, with an average precipitation of 130 mm (5.1 in) spread across about 25 days, complemented by average humidity levels of 77%. Make sure to bundle up and prepare for those rainy days!

December Temperature in Kuroishi

In December in Kuroishi, the average temperature is 1°C (33°F). The maximum can reach 13°C (56°F) and the minimum can be as low as -8°C (17°F). Be prepared for chilly weather and pack layers to stay warm while exploring the area.

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

The chart illustrates December temperature patterns in Kuroishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kuroishi, December typically has an average temperature of 1°C (33°F), with highs reaching up to 13°C (56°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec303037465865737567564533
Data source: Temperature data for Kuroishi 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 Kuroishi

In Kuroishi in December, the total precipitation amount is 130 mm (5.1 in) observed over the course of 25 days.

December Precipitation Trends in Kuroishi

The chart displays monthly precipitation patterns in Kuroishi, 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 Kuroishi, December typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec80106103113104130135181129166106130
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kuroishi

In Kuroishi in December, humidity is 77%. With an average temperature of 1°C (33°F), this humidity feels like an uncomfortable chill that penetrates through layers of clothing, making travel outside feel damp and bone-cold.

December Average Humidity in Kuroishi

This chart illustrates the average monthly humidity levels in Kuroishi, 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 Kuroishi is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kuroishi

In Kuroishi 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 Kuroishi, you can visit Hourly UV Index in Kuroishi.

Maximum UV Index Levels in Kuroishi for December

The chart shows the monthly maximum UV Index (UVI) for Kuroishi 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 Kuroishi typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010118642
Data source: Kuroishi 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 Kuroishi Compares to Other Months

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

This table compares monthly weather conditions in Kuroishi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)79 mm (3.1 inches)79%moderate
February Weather-1°C (31°F)106 mm (4.2 inches)78%moderate
March Weather3°C (38°F)103 mm (4.1 inches)77%high
April Weather8°C (47°F)113 mm (4.4 inches)78%very high
May Weather14°C (58°F)104 mm (4.1 inches)86%very high
June Weather18°C (65°F)130 mm (5.1 inches)91%very high
July Weather23°C (73°F)135 mm (5.3 inches)95%very high
August Weather24°C (75°F)181 mm (7.1 inches)97%extreme
September Weather20°C (68°F)129 mm (5.1 inches)89%very high
October Weather13°C (56°F)166 mm (6.6 inches)81%high
November Weather7°C (45°F)106 mm (4.2 inches)78%moderate
December Weather1°C (33°F)130 mm (5.1 inches)77%low

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