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December Weather in Yuasa, Japan

Last updated: August 23, 2025

In December, the average temperature in Yuasa, Japan hovers around 9°C (49°F), with the minimum dipping to 2°C (35°F) and the maximum reaching 20°C (69°F). Expect some moisture, as 81 mm (3.2 in) of precipitation is likely over 9 days, while humidity remains comfortable at about 74%.

December Temperature in Yuasa

In December in Yuasa, the average temperature is 9°C (49°F). Maximum temperatures can reach 20°C (69°F), while minimums can drop as low as 2°C (35°F). This mild climate makes Yuasa an ideal destination for travelers seeking comfortable weather for outdoor activities.

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

The chart illustrates December temperature patterns in Yuasa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yuasa, December typically has an average temperature of 9°C (49°F), with highs reaching up to 20°C (69°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec444551586672798276675748
Data source: Temperature data for Yuasa 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 Yuasa

In Yuasa in December, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

December Precipitation Trends in Yuasa

The chart displays monthly precipitation patterns in Yuasa, 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 Yuasa, December typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec70861311361822263332082272846781
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Yuasa

In Yuasa in December humidity is 74%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace that can make outdoor activities somewhat uncomfortable; travelers may find themselves needing to dress in layers to stay warm while also coping with the dampness in the air.

December Average Humidity in Yuasa

This chart illustrates the average monthly humidity levels in Yuasa, 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 Yuasa is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%69%75%82%87%92%86%82%79%76%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yuasa

In Yuasa 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 Yuasa for better planning.

Maximum UV Index Levels in Yuasa for December

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

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

This table compares monthly weather conditions in Yuasa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)70 mm (2.7 inches)72%moderate
February Weather7°C (45°F)86 mm (3.4 inches)69%high
March Weather11°C (52°F)131 mm (5.2 inches)69%very high
April Weather15°C (58°F)136 mm (5.3 inches)75%extreme
May Weather19°C (66°F)182 mm (7.2 inches)82%extreme
June Weather22°C (72°F)226 mm (8.9 inches)87%extreme
July Weather26°C (79°F)333 mm (13.1 inches)92%extreme
August Weather28°C (82°F)208 mm (8.2 inches)86%extreme
September Weather25°C (76°F)227 mm (8.9 inches)82%very high
October Weather20°C (68°F)284 mm (11.2 inches)79%high
November Weather14°C (58°F)67 mm (2.6 inches)75%high
December Weather9°C (49°F)81 mm (3.2 inches)74%moderate

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