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December Weather in Yawatahama, Japan

Last updated: August 23, 2025

In December, the average temperature in Yawatahama, Japan hovers around 9°C (48°F). Expect minimum temperatures to dip to -1°C (31°F) and maximums peaking at 23°C (74°F). During this month, the region also receives approximately 64 mm (2.5 in) of precipitation over 8 days, contributing to an average humidity level of 79%.

December Temperature in Yawatahama

In December in Yawatahama, the average temperature is 9°C (48°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as -1°C (31°F). This makes it a great time for travelers to experience a range of weather, so be sure to pack accordingly.

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

The chart illustrates December temperature patterns in Yawatahama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yawatahama, December typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec444552606873808377675647
Data source: Temperature data for Yawatahama 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 Yawatahama

In Yawatahama in December, the precipitation amount is 64 mm (2.5 in) over the course of 8 days.

December Precipitation Trends in Yawatahama

The chart displays monthly precipitation patterns in Yawatahama, 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 Yawatahama, December typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec53841291261492043531841871916064
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Yawatahama

In Yawatahama in December humidity is 79%. With an average temperature of 9°C (48°F), this humidity feels like a chilly mist wrapping around you, making outdoor activities brisk yet invigorating, but it can also leave you feeling damp and slightly chilled if you're not dressed appropriately for the conditions.

December Average Humidity in Yawatahama

This chart illustrates the average monthly humidity levels in Yawatahama, 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 Yawatahama is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yawatahama

In Yawatahama 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 Yawatahama for better planning.

Maximum UV Index Levels in Yawatahama for December

The chart shows the monthly maximum UV Index (UVI) for Yawatahama 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 Yawatahama typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121210764
Data source: Yawatahama 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 Yawatahama Compares to Other Months

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

This table compares monthly weather conditions in Yawatahama, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)53 mm (2.1 inches)75%moderate
February Weather7°C (45°F)84 mm (3.3 inches)71%high
March Weather11°C (53°F)129 mm (5.1 inches)71%very high
April Weather15°C (60°F)126 mm (4.9 inches)78%very high
May Weather20°C (68°F)149 mm (5.9 inches)84%extreme
June Weather23°C (74°F)204 mm (8.0 inches)86%extreme
July Weather27°C (80°F)353 mm (13.9 inches)92%extreme
August Weather28°C (83°F)184 mm (7.3 inches)91%extreme
September Weather25°C (77°F)187 mm (7.3 inches)84%very high
October Weather20°C (68°F)191 mm (7.5 inches)83%high
November Weather14°C (57°F)59 mm (2.3 inches)81%high
December Weather9°C (48°F)64 mm (2.5 inches)79%moderate

Compare Yawatahama's Climate with Cities Worldwide