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December Weather in Yonago, Japan

Last updated: August 23, 2025

In December, the average temperature in Yonago, Japan hovers around 9°C (49°F), offering a mild climate. Expect temperatures to fluctuate, with a minimum of 1°C (35°F) and a maximum reaching 21°C (70°F). During this month, 185 mm (7.3 in) of precipitation is spread across 22 days, and the average humidity sits at a notable 82%, making for a refreshing yet damp atmosphere.

December Temperature in Yonago

In December in Yonago, the average temperature is 9°C (49°F). The maximum can reach 21°C (70°F), and the minimum can be as low as 1°C (35°F). This makes Yonago a great destination for travelers looking to enjoy mild weather while exploring the area.

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

The chart illustrates December temperature patterns in Yonago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yonago, December typically has an average temperature of 9°C (49°F), with highs reaching up to 21°C (70°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec454450566470788175665849
Data source: Temperature data for Yonago 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 Yonago

In Yonago in December, the precipitation amount is 185 mm (7.3 in) distributed over 22 days.

December Precipitation Trends in Yonago

The chart displays monthly precipitation patterns in Yonago, 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 Yonago, December typically receives around 185 mm (7.3 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec1571411381239716623721020717880185
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Yonago

In Yonago in December, humidity is 82%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and prompting travelers to seek warmth indoors or in cozy cafes.

December Average Humidity in Yonago

This chart illustrates the average monthly humidity levels in Yonago, 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 Yonago is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yonago

In Yonago 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 Yonago, you can check the information here.

Maximum UV Index Levels in Yonago for December

The chart shows the monthly maximum UV Index (UVI) for Yonago 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 Yonago typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec457101011121110753
Data source: Yonago 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 Yonago Compares to Other Months

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

This table compares monthly weather conditions in Yonago, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)157 mm (6.2 inches)82%moderate
February Weather7°C (45°F)141 mm (5.6 inches)79%moderate
March Weather10°C (50°F)137 mm (5.4 inches)73%high
April Weather13°C (56°F)123 mm (4.8 inches)74%very high
May Weather18°C (64°F)97 mm (3.8 inches)84%very high
June Weather21°C (70°F)166 mm (6.5 inches)86%extreme
July Weather25°C (78°F)237 mm (9.3 inches)92%extreme
August Weather27°C (81°F)210 mm (8.3 inches)92%extreme
September Weather24°C (75°F)207 mm (8.1 inches)87%very high
October Weather19°C (67°F)178 mm (7.0 inches)85%high
November Weather14°C (58°F)80 mm (3.2 inches)84%moderate
December Weather9°C (49°F)185 mm (7.3 inches)82%moderate

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