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December Weather in Tsukawaki, Japan

Last updated: August 23, 2025

In Tsukawaki, Japan, the average temperature in December hovers around 5°C (42°F), with a minimum plunge to -4°C (25°F) and a peak reaching 22°C (71°F). Expect about 67 mm (2.6 in) of precipitation spread across 8 days and a humidity level averaging 79%. Prepare for a mixed bag of weather!

December Temperature in Tsukawaki

In December in Tsukawaki, the average temperature is 5°C (42°F). The maximum can reach 22°C (71°F), and the minimum can be as low as -4°C (25°F). It's essential to pack layers to stay comfortable during your trip, as temperatures can vary significantly throughout the day.

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

The chart illustrates December temperature patterns in Tsukawaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tsukawaki, December typically has an average temperature of 5°C (42°F), with highs reaching up to 22°C (71°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec394049566571777972635241
Data source: Temperature data for Tsukawaki 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 Tsukawaki

In Tsukawaki in December, the total precipitation amount is 67 mm (2.6 in) over the course of 8 days.

December Precipitation Trends in Tsukawaki

The chart displays monthly precipitation patterns in Tsukawaki, 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 Tsukawaki, December typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec56801301171652113402522101575567
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tsukawaki

In Tsukawaki in December, humidity is 79%. With an average temperature of 5°C (42°F), this humidity feels like a chilly mist enveloping you, making outdoor activities challenging and travel less appealing, as the dampness clings to your skin and the cold bites through your layers.

December Average Humidity in Tsukawaki

This chart illustrates the average monthly humidity levels in Tsukawaki, 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 Tsukawaki is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tsukawaki

In Tsukawaki 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 Tsukawaki for better planning.

Maximum UV Index Levels in Tsukawaki for December

The chart shows the monthly maximum UV Index (UVI) for Tsukawaki 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 Tsukawaki typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111212121211864
Data source: Tsukawaki 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 Tsukawaki Compares to Other Months

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

This table compares monthly weather conditions in Tsukawaki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)56 mm (2.2 inches)75%moderate
February Weather5°C (41°F)80 mm (3.2 inches)71%high
March Weather9°C (49°F)130 mm (5.1 inches)71%very high
April Weather13°C (57°F)117 mm (4.6 inches)78%extreme
May Weather18°C (65°F)165 mm (6.5 inches)84%extreme
June Weather21°C (71°F)211 mm (8.3 inches)86%extreme
July Weather25°C (77°F)340 mm (13.4 inches)92%extreme
August Weather26°C (80°F)252 mm (9.9 inches)91%extreme
September Weather22°C (73°F)210 mm (8.3 inches)84%extreme
October Weather17°C (63°F)157 mm (6.2 inches)83%very high
November Weather11°C (52°F)55 mm (2.2 inches)81%high
December Weather5°C (42°F)67 mm (2.6 inches)79%moderate

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