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December Weather in Anan, Japan

Last updated: August 23, 2025

In December, the average temperature in Anan, Japan hovers around 11°C (53°F). Expect a minimum of 4°C (39°F) and a delightful maximum of 21°C (70°F). During this time, precipitation amounts can reach 68 mm (2.7 in) over 7 days, with average humidity at a comfortable 77%. Perfect for experiencing the local charm!

December Temperature in Anan

In December, in Anan, the average temperature is 11°C (53°F). Maximum temperatures can reach 21°C (70°F), while minimums can drop as low as 4°C (39°F). Be prepared for mild weather and pack accordingly for both warm and cool experiences.

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

The chart illustrates December temperature patterns in Anan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anan, December typically has an average temperature of 11°C (53°F), with highs reaching up to 21°C (70°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec484752586571788177706153
Data source: Temperature data for Anan 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 Anan

In Anan in December, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

December Precipitation Trends in Anan

The chart displays monthly precipitation patterns in Anan, 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 Anan, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec59691281281752002751402333376468
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Anan

In Anan in December humidity is 77%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities require extra layers and a quick adjustment to the cool, moist air.

December Average Humidity in Anan

This chart illustrates the average monthly humidity levels in Anan, 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 Anan is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Anan

In Anan 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 Anan for better planning.

Maximum UV Index Levels in Anan for December

The chart shows the monthly maximum UV Index (UVI) for Anan 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 Anan typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121110764
Data source: Anan 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 Anan Compares to Other Months

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

This table compares monthly weather conditions in Anan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)59 mm (2.3 inches)74%moderate
February Weather9°C (48°F)68 mm (2.7 inches)70%high
March Weather11°C (53°F)128 mm (5.0 inches)70%very high
April Weather14°C (58°F)128 mm (5.0 inches)76%extreme
May Weather18°C (65°F)174 mm (6.9 inches)82%extreme
June Weather22°C (71°F)200 mm (7.9 inches)86%extreme
July Weather25°C (78°F)275 mm (10.8 inches)91%extreme
August Weather27°C (81°F)140 mm (5.5 inches)88%extreme
September Weather25°C (77°F)233 mm (9.2 inches)85%very high
October Weather21°C (70°F)337 mm (13.3 inches)82%high
November Weather16°C (62°F)64 mm (2.5 inches)79%high
December Weather11°C (53°F)68 mm (2.7 inches)77%moderate

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