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December Weather in Kikonai, Japan

Last updated: August 23, 2025

In Kikonai, Japan, the average temperature in December hovers around 1°C (34°F), with lows dipping to a chilly -8°C (17°F) and highs reaching a mild 13°C (55°F). Expect 84 mm (3.3 in) of precipitation spread over 18 days, contributing to an average humidity of 77%. Be prepared for the wet, cool conditions this month!

December Temperature in Kikonai

In December in Kikonai, the average temperature is 1°C (34°F). Maximums can reach 13°C (55°F) while minimums can go as low as -8°C (17°F). It's essential to pack warm clothing and be prepared for chilly weather if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Kikonai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kikonai, December typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (55°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec293038455460687167574533
Data source: Temperature data for Kikonai 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 Kikonai

In Kikonai in December, the precipitation amount is 84 mm (3.3 in) over a span of 18 days.

December Precipitation Trends in Kikonai

The chart displays monthly precipitation patterns in Kikonai, 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 Kikonai, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec5772839710111111719414613110184
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kikonai

In Kikonai in December, humidity is 77%. With an average temperature of 1°C (34°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and necessitating extra layers to stay warm and dry.

December Average Humidity in Kikonai

This chart illustrates the average monthly humidity levels in Kikonai, 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 Kikonai is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kikonai

In Kikonai in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Kikonai, you can visit Hourly UV Index in Kikonai.

Maximum UV Index Levels in Kikonai for December

The chart shows the monthly maximum UV Index (UVI) for Kikonai 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 Kikonai typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec345891010118632
Data source: Kikonai 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 Kikonai Compares to Other Months

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

This table compares monthly weather conditions in Kikonai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)57 mm (2.2 inches)79%moderate
February Weather-1°C (30°F)72 mm (2.8 inches)78%moderate
March Weather3°C (38°F)83 mm (3.3 inches)77%moderate
April Weather7°C (45°F)97 mm (3.8 inches)78%very high
May Weather12°C (54°F)101 mm (4.0 inches)86%very high
June Weather16°C (60°F)111 mm (4.4 inches)91%very high
July Weather20°C (68°F)117 mm (4.6 inches)95%very high
August Weather22°C (71°F)194 mm (7.6 inches)97%extreme
September Weather19°C (67°F)146 mm (5.7 inches)89%very high
October Weather14°C (57°F)131 mm (5.2 inches)81%high
November Weather7°C (46°F)101 mm (4.0 inches)78%moderate
December Weather1°C (34°F)84 mm (3.3 inches)77%low

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