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December Weather in Aira, Japan

Last updated: August 23, 2025

In December, the average temperature in Aira, Japan sits at a comfortable 10°C (50°F). While temperatures can dip as low as 1°C (34°F), they can also reach a pleasant 24°C (75°F). Expect a total precipitation of 86 mm (3.4 in) over about 8 days, and enjoy an average humidity level of 74%. It's a month that beautifully balances the chilly and mild!

December Temperature in Aira

In December in Aira, the average temperature is 10°C (50°F), with maximums reaching 24°C (75°F) and minimums dropping as low as 1°C (34°F). This mild temperature range makes it a great time to explore Aira comfortably.

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

The chart illustrates December temperature patterns in Aira, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aira, December typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (75°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec474855616874818378705950
Data source: Temperature data for Aira 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 Aira

In Aira in December, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.

December Precipitation Trends in Aira

The chart displays monthly precipitation patterns in Aira, 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 Aira, December typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec561041661562654064462132581379786
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Aira

In Aira in December humidity is 74%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your clothes, making outdoor exploration uncomfortable and requiring travelers to dress in layers to stay warm while navigating the moist air.

December Average Humidity in Aira

This chart illustrates the average monthly humidity levels in Aira, 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 Aira is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Aira

In Aira in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Aira for better planning.

Maximum UV Index Levels in Aira for December

The chart shows the monthly maximum UV Index (UVI) for Aira 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 Aira typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610111212121311864
Data source: Aira 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 Aira Compares to Other Months

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

This table compares monthly weather conditions in Aira, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)56 mm (2.2 inches)72%moderate
February Weather9°C (48°F)104 mm (4.1 inches)68%high
March Weather13°C (55°F)166 mm (6.5 inches)72%very high
April Weather16°C (62°F)156 mm (6.2 inches)79%extreme
May Weather20°C (69°F)265 mm (10.4 inches)83%extreme
June Weather23°C (74°F)406 mm (16.0 inches)86%extreme
July Weather27°C (81°F)446 mm (17.6 inches)90%extreme
August Weather28°C (83°F)213 mm (8.4 inches)85%extreme
September Weather26°C (78°F)258 mm (10.2 inches)80%extreme
October Weather21°C (70°F)137 mm (5.4 inches)78%very high
November Weather15°C (60°F)97 mm (3.8 inches)76%high
December Weather10°C (50°F)86 mm (3.4 inches)74%moderate

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