nomadseason

December Weather in Yao, Japan

Last updated: August 23, 2025

In December, the average temperature in Yao, Japan hovers around 8°C (47°F), with a minimum dipping to -1°C (31°F) and a maximum reaching up to 22°C (73°F). Expect about 62 mm (2.5 in) of precipitation spread over 7 days, and be prepared for a relatively high humidity level of 83%.

December Temperature in Yao

In December in Yao, the average temperature is 8°C (47°F). The maximum can reach 22°C (73°F), while the minimum can plummet to as low as -1°C (31°F). This diverse range of temperatures makes Yao a great destination for travelers seeking both mild days and crisp nights.

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

The chart illustrates December temperature patterns in Yao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yao, December typically has an average temperature of 8°C (47°F), with highs reaching up to 22°C (73°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec424351596874818577675646
Data source: Temperature data for Yao generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Yao

In Yao in December, the precipitation amount is 62 mm (2.5 in) over a period of 7 days.

December Precipitation Trends in Yao

The chart displays monthly precipitation patterns in Yao, 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 Yao, December typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec53651101221461662701601642384862
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Yao

In Yao in December humidity is 83%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making travel uncomfortable and leaving you yearning for warmth and dryness as you explore.

December Average Humidity in Yao

This chart illustrates the average monthly humidity levels in Yao, 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 Yao is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yao

In Yao 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 Yao for better planning.

Maximum UV Index Levels in Yao for December

The chart shows the monthly maximum UV Index (UVI) for Yao 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 Yao typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121210764
Data source: Yao 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 Yao Compares to Other Months

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

This table compares monthly weather conditions in Yao, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)53 mm (2.1 inches)82%moderate
February Weather6°C (43°F)65 mm (2.6 inches)79%high
March Weather10°C (51°F)110 mm (4.3 inches)74%very high
April Weather15°C (59°F)122 mm (4.8 inches)76%extreme
May Weather20°C (68°F)146 mm (5.7 inches)83%extreme
June Weather23°C (74°F)166 mm (6.5 inches)87%extreme
July Weather27°C (82°F)270 mm (10.6 inches)93%extreme
August Weather29°C (85°F)160 mm (6.3 inches)91%extreme
September Weather25°C (77°F)164 mm (6.5 inches)87%very high
October Weather19°C (67°F)238 mm (9.4 inches)85%high
November Weather13°C (56°F)48 mm (1.9 inches)83%high
December Weather8°C (47°F)62 mm (2.5 inches)83%moderate

Compare Yao's Climate with Cities Worldwide