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December Weather in Shimizu, Japan

Last updated: August 23, 2025

In December, the average temperature in Shimizu, Japan hovers around -5°C (24°F). During this time, you can expect a minimum temperature dropping to -20°C (-4°F) and a maximum reaching up to 13°C (55°F). Additionally, the region experiences about 58 mm (2.3 in) of precipitation over 9 days, with an average humidity of 79%.

December Temperature in Shimizu

In December in Shimizu, the average temperature is -5°C (24°F), with a maximum reaching 13°C (55°F) and a minimum dropping as low as -20°C (-4°F). Be prepared for cold weather and dress in layers if you plan to travel during this month.

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

The chart illustrates December temperature patterns in Shimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimizu, December typically has an average temperature of -5°C (24°F), with highs reaching up to 13°C (55°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec171930415359666660493723
Data source: Temperature data for Shimizu 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 Shimizu

In Shimizu in December, the precipitation amount is 58 mm (2.3 in) spread over 9 days.

December Precipitation Trends in Shimizu

The chart displays monthly precipitation patterns in Shimizu, 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 Shimizu, December typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5055908986109981711271528959
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Shimizu

In Shimizu in December, humidity is 79%. With an average temperature of -5°C (24°F), this humidity feels like an icy grip that makes the cold air bite even more sharply, requiring travelers to bundle up warmly and prepare for a chilling experience outdoors.

December Average Humidity in Shimizu

This chart illustrates the average monthly humidity levels in Shimizu, 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 Shimizu is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Shimizu

In Shimizu 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 Shimizu, you can visit Hourly UV Index in Shimizu.

Maximum UV Index Levels in Shimizu for December

The chart shows the monthly maximum UV Index (UVI) for Shimizu 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 Shimizu typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236891010108632
Data source: Shimizu 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 Shimizu Compares to Other Months

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

This table compares monthly weather conditions in Shimizu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)50 mm (2.0 inches)84%low
February Weather-7°C (19°F)54 mm (2.1 inches)83%moderate
March Weather-1°C (31°F)89 mm (3.5 inches)83%high
April Weather5°C (42°F)89 mm (3.5 inches)83%very high
May Weather12°C (53°F)86 mm (3.4 inches)86%very high
June Weather15°C (59°F)109 mm (4.3 inches)88%very high
July Weather19°C (66°F)98 mm (3.8 inches)93%very high
August Weather19°C (66°F)171 mm (6.7 inches)96%very high
September Weather16°C (61°F)127 mm (5.0 inches)89%very high
October Weather10°C (49°F)152 mm (6.0 inches)83%high
November Weather3°C (37°F)89 mm (3.5 inches)80%moderate
December Weather-5°C (24°F)58 mm (2.3 inches)79%low

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