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December Weather in Iida, Japan

Last updated: August 23, 2025

In December, the average temperature in Iida, Japan hovers around 2°C (36°F). Expect a chilly environment with minimums dipping to -9°C (17°F) and highs reaching up to 16°C (61°F). Prepare for some drizzles, as 95 mm (3.7 in) of precipitation falls over about 11 days. With an average humidity of 78%, don’t forget your layers and an umbrella!

December Temperature in Iida

In December in Iida, the average temperature is 2°C (36°F). Maximum temperatures can reach up to 16°C (61°F), while the minimum can drop as low as -9°C (17°F). Be sure to pack layers and prepare for chilly conditions during your travels!

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

The chart illustrates December temperature patterns in Iida, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iida, December typically has an average temperature of 2°C (36°F), with highs reaching up to 16°C (61°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec303141495864717467574535
Data source: Temperature data for Iida 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 Iida

In Iida in December, the total precipitation amount is 95 mm (3.7 in) spread over 11 days.

December Precipitation Trends in Iida

The chart displays monthly precipitation patterns in Iida, 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 Iida, December typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec901021812002182235072562422648595
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Iida

In Iida in December, humidity is 78%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and necessitating heavy layers to stay warm while navigating the damp air.

December Average Humidity in Iida

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

In Iida 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 Iida for better planning.

Maximum UV Index Levels in Iida for December

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

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

This table compares monthly weather conditions in Iida, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)90 mm (3.5 inches)76%moderate
February Weather0°C (32°F)102 mm (4.0 inches)74%high
March Weather5°C (41°F)181 mm (7.1 inches)70%very high
April Weather9°C (49°F)200 mm (7.9 inches)74%very high
May Weather14°C (58°F)218 mm (8.6 inches)81%extreme
June Weather18°C (64°F)223 mm (8.8 inches)88%extreme
July Weather22°C (71°F)507 mm (20.0 inches)93%extreme
August Weather23°C (74°F)256 mm (10.1 inches)90%extreme
September Weather19°C (67°F)242 mm (9.5 inches)86%very high
October Weather14°C (57°F)264 mm (10.4 inches)83%high
November Weather7°C (46°F)85 mm (3.3 inches)80%moderate
December Weather2°C (36°F)95 mm (3.7 inches)78%moderate

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