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December Weather in Hanawa, Japan

Last updated: August 23, 2025

In Hanawa, Japan, the average temperature in December hovers around -1°C (30°F). Expect a chilly range where temperatures can plunge to a minimum of -12°C (11°F) and peak at a comfortable 12°C (54°F). With 124 mm (4.9 in) of precipitation spread over 23 days, be prepared for some damp days as well. Overall, the average humidity sits at a notable 77%, adding a crisp edge to the winter air.

December Temperature in Hanawa

In December in Hanawa, the average temperature is -1°C (30°F). Maximums can reach 12°C (54°F), while minimums can be as low as -12°C (11°F). It's a chilly time to visit, so be sure to pack warm clothing if you're planning a trip!

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

The chart illustrates December temperature patterns in Hanawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hanawa, December typically has an average temperature of -1°C (30°F), with highs reaching up to 12°C (54°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec252735455663717265534230
Data source: Temperature data for Hanawa 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 Hanawa

In Hanawa in December, the precipitation amount is 124 mm (4.9 in) over the course of 23 days.

December Precipitation Trends in Hanawa

The chart displays monthly precipitation patterns in Hanawa, 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 Hanawa, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec85116113138117139170175141167109125
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hanawa

In Hanawa in December humidity is 77%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that penetrates your layers, making it crucial to bundle up tightly during your travels.

December Average Humidity in Hanawa

This chart illustrates the average monthly humidity levels in Hanawa, 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 Hanawa 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 Hanawa

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

Maximum UV Index Levels in Hanawa for December

The chart shows the monthly maximum UV Index (UVI) for Hanawa 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 Hanawa typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010119642
Data source: Hanawa 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 Hanawa Compares to Other Months

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

This table compares monthly weather conditions in Hanawa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)85 mm (3.4 inches)79%moderate
February Weather-3°C (27°F)116 mm (4.6 inches)78%moderate
March Weather2°C (35°F)113 mm (4.5 inches)77%high
April Weather7°C (45°F)138 mm (5.4 inches)78%very high
May Weather13°C (56°F)117 mm (4.6 inches)86%very high
June Weather17°C (63°F)139 mm (5.5 inches)91%very high
July Weather22°C (71°F)170 mm (6.7 inches)95%very high
August Weather22°C (73°F)175 mm (6.9 inches)97%extreme
September Weather18°C (65°F)141 mm (5.5 inches)89%very high
October Weather12°C (54°F)167 mm (6.6 inches)81%high
November Weather6°C (42°F)109 mm (4.3 inches)78%moderate
December Weather-1°C (30°F)124 mm (4.9 inches)77%low

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