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December Weather in Sukagawa, Japan

Last updated: August 23, 2025

In December, the average temperature in Sukagawa, Japan hovers around 3°C (37°F). During this month, temperatures can range from a chilly -5°C (22°F) to a pleasantly warm 18°C (64°F). Expect about 55 mm (2.2 in) of precipitation spread over 10 days, coupled with an average humidity of 77%.

December Temperature in Sukagawa

In December in Sukagawa, the average temperature is 3°C (37°F). Maximums can reach 18°C (64°F), while minimums can drop as low as -5°C (22°F). Pack warm clothing and be prepared for a range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Sukagawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sukagawa, December typically has an average temperature of 3°C (37°F), with highs reaching up to 18°C (64°F) and lows dropping to around -5°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec333542506166747768584737
Data source: Temperature data for Sukagawa 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 Sukagawa

In Sukagawa in December, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

December Precipitation Trends in Sukagawa

The chart displays monthly precipitation patterns in Sukagawa, 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 Sukagawa, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec49401201081281252521251582114755
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sukagawa

In Sukagawa in December, humidity is 77%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill settling in, making travel uncomfortable as the moisture seeps into your clothes and lingers on your skin, turning each step into a reminder of the cold, clammy atmosphere.

December Average Humidity in Sukagawa

This chart illustrates the average monthly humidity levels in Sukagawa, 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 Sukagawa is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sukagawa

In Sukagawa 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 Sukagawa, you can check the information here.

Maximum UV Index Levels in Sukagawa for December

The chart shows the monthly maximum UV Index (UVI) for Sukagawa 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 Sukagawa typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111119753
Data source: Sukagawa 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 Sukagawa Compares to Other Months

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

This table compares monthly weather conditions in Sukagawa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)48 mm (1.9 inches)76%moderate
February Weather1°C (35°F)40 mm (1.6 inches)75%moderate
March Weather5°C (42°F)120 mm (4.7 inches)72%high
April Weather10°C (50°F)108 mm (4.2 inches)73%very high
May Weather16°C (61°F)128 mm (5.0 inches)80%very high
June Weather19°C (67°F)125 mm (4.9 inches)87%extreme
July Weather23°C (74°F)252 mm (9.9 inches)92%extreme
August Weather25°C (77°F)125 mm (4.9 inches)90%extreme
September Weather20°C (68°F)158 mm (6.2 inches)84%very high
October Weather14°C (58°F)211 mm (8.3 inches)80%high
November Weather8°C (47°F)47 mm (1.8 inches)77%moderate
December Weather3°C (37°F)55 mm (2.2 inches)77%moderate

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