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December Weather in Tosashimizu, Japan

Last updated: August 23, 2025

In Tosashimizu, Japan, the average temperature in December is 13°C (56°F), with minimums dropping to 4°C (40°F) and maximums peaking at 22°C (72°F). Expect about 89 mm (3.5 in) of precipitation spread over 8 days, contributing to an average humidity of 77%.

December Temperature in Tosashimizu

In December in Tosashimizu, the average temperature is 13°C (56°F). Maximums can reach 22°C (72°F), while minimums can dip to as low as 4°C (40°F). This mild weather makes Tosashimizu a pleasant destination for travelers seeking comfortable conditions.

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

The chart illustrates December temperature patterns in Tosashimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tosashimizu, December typically has an average temperature of 13°C (56°F), with highs reaching up to 22°C (72°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec525258636974798279726455
Data source: Temperature data for Tosashimizu 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 Tosashimizu

In Tosashimizu in December, the precipitation amount is 89 mm (3.5 in) over a span of 8 days.

December Precipitation Trends in Tosashimizu

The chart displays monthly precipitation patterns in Tosashimizu, 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 Tosashimizu, December typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7411316616520926136322527526910489
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tosashimizu

In Tosashimizu in December humidity is 77%. With average temperature 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities sweaty and uncomfortable.

December Average Humidity in Tosashimizu

This chart illustrates the average monthly humidity levels in Tosashimizu, 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 Tosashimizu is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tosashimizu

In Tosashimizu 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 Tosashimizu for better planning.

Maximum UV Index Levels in Tosashimizu for December

The chart shows the monthly maximum UV Index (UVI) for Tosashimizu 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 Tosashimizu typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101212121210764
Data source: Tosashimizu 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 Tosashimizu Compares to Other Months

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

This table compares monthly weather conditions in Tosashimizu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)74 mm (2.9 inches)74%moderate
February Weather11°C (52°F)113 mm (4.4 inches)70%high
March Weather14°C (58°F)166 mm (6.5 inches)70%very high
April Weather17°C (63°F)165 mm (6.5 inches)76%very high
May Weather20°C (69°F)209 mm (8.2 inches)82%extreme
June Weather23°C (74°F)261 mm (10.3 inches)86%extreme
July Weather26°C (79°F)363 mm (14.3 inches)91%extreme
August Weather28°C (82°F)225 mm (8.9 inches)88%extreme
September Weather26°C (79°F)275 mm (10.8 inches)85%very high
October Weather22°C (73°F)269 mm (10.6 inches)82%high
November Weather18°C (64°F)104 mm (4.1 inches)79%high
December Weather13°C (56°F)89 mm (3.5 inches)77%moderate

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