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December Weather in Kahoku, Japan

Last updated: August 23, 2025

In December, the average temperature in Kahoku, Japan hovers around 7°C (45°F), with fluctuations ranging from a chilly -5°C (24°F) to a pleasant 22°C (72°F). Expect 192 mm (7.6 in) of precipitation over approximately 23 days, contributing to an average humidity of 79%. Be prepared for a mix of cool weather and wet conditions!

December Temperature in Kahoku

In December in Kahoku, the average temperature is 7°C (45°F), with maximums reaching 22°C (72°F) and minimums dipping as low as -5°C (24°F). It's advisable to pack layers for your travels to comfortably adapt to the varying temperatures.

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

The chart illustrates December temperature patterns in Kahoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kahoku, December typically has an average temperature of 7°C (45°F), with highs reaching up to 22°C (72°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec394048556572808375645444
Data source: Temperature data for Kahoku 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 Kahoku

In Kahoku in December, the precipitation amount is 192 mm (7.6 in) spread over a period of 23 days.

December Precipitation Trends in Kahoku

The chart displays monthly precipitation patterns in Kahoku, 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 Kahoku, December typically receives around 192 mm (7.6 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec14412812914295134270215199161118192
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kahoku

In Kahoku in December humidity is 79%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill wrapping around you, making outdoor explorations uncomfortable and requiring extra layers for warmth while you navigate through the misty air.

December Average Humidity in Kahoku

This chart illustrates the average monthly humidity levels in Kahoku, 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 Kahoku is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%76%77%85%89%93%92%84%81%77%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kahoku

In Kahoku in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Kahoku, you can check the information here.

Maximum UV Index Levels in Kahoku for December

The chart shows the monthly maximum UV Index (UVI) for Kahoku 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 Kahoku typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111119653
Data source: Kahoku 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 Kahoku Compares to Other Months

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

This table compares monthly weather conditions in Kahoku, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)144 mm (5.7 inches)80%moderate
February Weather5°C (40°F)128 mm (5.0 inches)78%moderate
March Weather9°C (48°F)129 mm (5.1 inches)76%high
April Weather13°C (55°F)142 mm (5.6 inches)77%very high
May Weather19°C (66°F)95 mm (3.8 inches)85%very high
June Weather22°C (72°F)134 mm (5.3 inches)89%extreme
July Weather27°C (80°F)270 mm (10.6 inches)93%extreme
August Weather28°C (83°F)215 mm (8.5 inches)92%extreme
September Weather24°C (75°F)199 mm (7.8 inches)84%very high
October Weather18°C (65°F)160 mm (6.3 inches)81%high
November Weather12°C (54°F)118 mm (4.6 inches)77%moderate
December Weather7°C (45°F)192 mm (7.6 inches)79%moderate

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