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December Weather in Toyone, Japan

Last updated: August 23, 2025

In December, the average temperature in Toyone, Japan hovers around 3°C (38°F), with lows dipping to a chilly -6°C (21°F) and highs reaching a comfortable 18°C (64°F). Expect 92 mm (3.6 in) of precipitation spread over about 9 days, contributing to an average humidity level of 78%. Prepare for a mix of crisp air and occasional rain as you explore this enchanting locale!

December Temperature in Toyone

In December in Toyone, the average temperature is 3°C (38°F), with maximum temperatures reaching 18°C (64°F) and minimums dropping as low as -6°C (21°F). This climate makes it essential for travelers to pack layers to stay comfortable while exploring the area.

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

The chart illustrates December temperature patterns in Toyone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Toyone, December typically has an average temperature of 3°C (38°F), with highs reaching up to 18°C (64°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec343543516065727569594838
Data source: Temperature data for Toyone 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 Toyone

In Toyone in December, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.

December Precipitation Trends in Toyone

The chart displays monthly precipitation patterns in Toyone, 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 Toyone, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec821002062272472796163182853058992
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Toyone

In Toyone in December humidity is 78%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapping around you, making travel quite uncomfortable as every breath seems to draw in dampness, and your clothes cling to you, adding an extra weight to your steps.

December Average Humidity in Toyone

This chart illustrates the average monthly humidity levels in Toyone, 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 Toyone is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Toyone

In Toyone 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 Toyone for better planning.

Maximum UV Index Levels in Toyone for December

The chart shows the monthly maximum UV Index (UVI) for Toyone 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 Toyone typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Toyone 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 Toyone Compares to Other Months

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

This table compares monthly weather conditions in Toyone, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)82 mm (3.2 inches)76%moderate
February Weather2°C (35°F)100 mm (3.9 inches)74%high
March Weather6°C (44°F)206 mm (8.1 inches)70%very high
April Weather10°C (51°F)227 mm (8.9 inches)74%very high
May Weather15°C (60°F)247 mm (9.7 inches)81%extreme
June Weather19°C (66°F)279 mm (11.0 inches)88%extreme
July Weather22°C (73°F)616 mm (24.3 inches)93%extreme
August Weather24°C (76°F)318 mm (12.5 inches)90%extreme
September Weather20°C (69°F)285 mm (11.2 inches)86%very high
October Weather15°C (59°F)305 mm (12.0 inches)83%high
November Weather9°C (48°F)89 mm (3.5 inches)80%moderate
December Weather3°C (38°F)92 mm (3.6 inches)78%moderate

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