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December Weather in Nagiso, Japan

Last updated: August 23, 2025

In December, the average temperature in Nagiso, Japan hovers around 3°C (38°F). The mercury can dip as low as -5°C (23°F), while basking in a maximum of 17°C (63°F). Expect some rain, with 96 mm (3.8 in) of precipitation spread over 12 days. Plus, the air remains quite moist, boasting an average humidity of 83%.

December Temperature in Nagiso

In December in Nagiso, the average temperature is 3°C (38°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -5°C (23°F). Travelers should be prepared for a mix of cool days and chilly nights, so pack layers to stay comfortable.

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

The chart illustrates December temperature patterns in Nagiso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagiso, December typically has an average temperature of 3°C (38°F), with highs reaching up to 17°C (63°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec333543516066737669594838
Data source: Temperature data for Nagiso 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 Nagiso

In Nagiso in December, the precipitation amount is 96 mm (3.8 in) spread over a duration of 12 days.

December Precipitation Trends in Nagiso

The chart displays monthly precipitation patterns in Nagiso, 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 Nagiso, December typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec881061832192312415442902602448696
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Nagiso

In Nagiso in December humidity is 83%. With an average temperature of 3°C (38°F), this humidity feels like a cold, damp embrace that chills you to the bone, making outdoor activities feel brisk and uncomfortable for traveling.

December Average Humidity in Nagiso

This chart illustrates the average monthly humidity levels in Nagiso, 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 Nagiso 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 Nagiso

In Nagiso 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 Nagiso for better planning.

Maximum UV Index Levels in Nagiso for December

The chart shows the monthly maximum UV Index (UVI) for Nagiso 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 Nagiso typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101111121210754
Data source: Nagiso 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 Nagiso Compares to Other Months

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

This table compares monthly weather conditions in Nagiso, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)88 mm (3.4 inches)82%moderate
February Weather2°C (35°F)106 mm (4.2 inches)79%high
March Weather6°C (44°F)183 mm (7.2 inches)74%very high
April Weather11°C (51°F)219 mm (8.6 inches)76%very high
May Weather16°C (61°F)231 mm (9.1 inches)83%extreme
June Weather19°C (67°F)241 mm (9.5 inches)87%extreme
July Weather23°C (74°F)544 mm (21.4 inches)93%extreme
August Weather25°C (77°F)290 mm (11.4 inches)91%extreme
September Weather21°C (70°F)260 mm (10.2 inches)87%very high
October Weather15°C (60°F)244 mm (9.6 inches)85%high
November Weather9°C (48°F)86 mm (3.4 inches)83%moderate
December Weather3°C (38°F)96 mm (3.8 inches)83%moderate

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