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December Weather in Hiratacho, Japan

Last updated: August 23, 2025

In December, the average temperature in Hiratacho, Japan is a cool 10°C (49°F), with nighttime lows dipping to 1°C (35°F) and daytime highs reaching up to 20°C (68°F). Expect a moderate level of precipitation, averaging 150 mm (5.9 in) over 22 days, coupled with a high average humidity of 82%. Prepare for a comfortably damp month!

December Temperature in Hiratacho

In December in Hiratacho, the average temperature is 10°C (49°F). Maximum can reach 20°C (68°F) and minimum can be as low as 1°C (35°F). Be sure to pack layers to stay comfortable while exploring the diverse weather conditions during your trip.

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

The chart illustrates December temperature patterns in Hiratacho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hiratacho, December typically has an average temperature of 10°C (49°F), with highs reaching up to 20°C (68°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec454550566470778175675849
Data source: Temperature data for Hiratacho 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 Hiratacho

In Hiratacho in December, the total precipitation amount is 150 mm (5.9 in) distributed over 22 days.

December Precipitation Trends in Hiratacho

The chart displays monthly precipitation patterns in Hiratacho, 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 Hiratacho, December typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec1291271381209916326022122316770150
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hiratacho

In Hiratacho in December, humidity is 82%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making every step heavy and every breath feel cooler than the air itself, which can dampen the thrill of exploring but also lends a unique atmosphere to your travels.

December Average Humidity in Hiratacho

This chart illustrates the average monthly humidity levels in Hiratacho, 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 Hiratacho is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hiratacho

In Hiratacho in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Hiratacho, you can check the information here.

Maximum UV Index Levels in Hiratacho for December

The chart shows the monthly maximum UV Index (UVI) for Hiratacho 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 Hiratacho typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357101011121110753
Data source: Hiratacho 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 Hiratacho Compares to Other Months

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

This table compares monthly weather conditions in Hiratacho, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)129 mm (5.1 inches)82%moderate
February Weather7°C (45°F)127 mm (5.0 inches)79%moderate
March Weather10°C (50°F)138 mm (5.4 inches)73%high
April Weather13°C (56°F)120 mm (4.7 inches)74%very high
May Weather18°C (64°F)99 mm (3.9 inches)84%very high
June Weather21°C (70°F)163 mm (6.4 inches)86%extreme
July Weather25°C (77°F)260 mm (10.2 inches)92%extreme
August Weather27°C (81°F)221 mm (8.7 inches)92%extreme
September Weather24°C (75°F)223 mm (8.8 inches)87%very high
October Weather19°C (67°F)166 mm (6.6 inches)85%high
November Weather15°C (58°F)70 mm (2.8 inches)84%moderate
December Weather10°C (49°F)150 mm (5.9 inches)82%moderate

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