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December Weather in Maruoka, Japan

Last updated: August 23, 2025

In December, the average temperature in Maruoka, Japan hovers around 8°C (47°F). Be prepared for a range of conditions, as the minimum temperature can plummet to -2°C (30°F), while the maximum may reach 20°C (69°F). Expect precipitation of about 269 mm (10.6 in) over approximately 25 days, coupled with an average humidity of 79%. Stay comfortable and gear up for the changing weather!

December Temperature in Maruoka

In December in Maruoka, the average temperature is 8°C (47°F). Maximums can reach 20°C (69°F) and minimums can be as low as -2°C (30°F). Travelers should prepare for a range of weather conditions, from mild days to chilly nights.

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

The chart illustrates December temperature patterns in Maruoka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Maruoka, December typically has an average temperature of 8°C (47°F), with highs reaching up to 20°C (69°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec424248546369788175665647
Data source: Temperature data for Maruoka 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 Maruoka

In Maruoka in December, the precipitation amount is 269 mm (10.6 in) over the course of 25 days.

December Precipitation Trends in Maruoka

The chart displays monthly precipitation patterns in Maruoka, 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 Maruoka, December typically receives around 269 mm (10.6 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec223180160174146160317252218208163269
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Maruoka

In Maruoka in December, humidity is 79%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

December Average Humidity in Maruoka

This chart illustrates the average monthly humidity levels in Maruoka, 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 Maruoka is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%76%77%85%89%93%92%84%81%77%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Maruoka

In Maruoka 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 Maruoka, you can check the information here.

Maximum UV Index Levels in Maruoka for December

The chart shows the monthly maximum UV Index (UVI) for Maruoka 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 Maruoka typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45810101111119753
Data source: Maruoka 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 Maruoka Compares to Other Months

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

This table compares monthly weather conditions in Maruoka, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)223 mm (8.8 inches)80%moderate
February Weather6°C (42°F)180 mm (7.1 inches)78%moderate
March Weather9°C (48°F)160 mm (6.3 inches)76%very high
April Weather12°C (54°F)174 mm (6.9 inches)77%very high
May Weather17°C (63°F)146 mm (5.8 inches)85%very high
June Weather21°C (70°F)160 mm (6.3 inches)89%extreme
July Weather25°C (78°F)317 mm (12.5 inches)93%extreme
August Weather27°C (81°F)252 mm (9.9 inches)92%extreme
September Weather24°C (75°F)218 mm (8.6 inches)84%very high
October Weather19°C (66°F)208 mm (8.2 inches)81%high
November Weather14°C (57°F)163 mm (6.4 inches)77%moderate
December Weather8°C (47°F)269 mm (10.6 inches)79%moderate

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