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December Weather in Nirasaki, Japan

Last updated: August 23, 2025

The average temperature in Nirasaki, Japan during December is a brisk 1°C (35°F). Expect it to dip as low as -8°C (17°F) and potentially reach a high of 17°C (63°F). This month also brings some moisture, with a total precipitation of 54 mm (2.1 in) over approximately 7 days, contributing to an average humidity of 78%.

December Temperature in Nirasaki

In December, in Nirasaki, the average temperature is 1°C (35°F), with maximums reaching up to 17°C (63°F) and minimums dipping as low as -8°C (17°F). Travelers should be prepared for chilly weather and pack accordingly for varying temperatures.

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

The chart illustrates December temperature patterns in Nirasaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nirasaki, December typically has an average temperature of 1°C (35°F), with highs reaching up to 17°C (63°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec303240485863707365554435
Data source: Temperature data for Nirasaki 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 Nirasaki

In Nirasaki in December, the precipitation amount is 54 mm (2.1 in) over a duration of 7 days.

December Precipitation Trends in Nirasaki

The chart displays monthly precipitation patterns in Nirasaki, 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 Nirasaki, December typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec48601361291381472931501832775254
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Nirasaki

In Nirasaki in December, humidity is 78%. With an average temperature of 1°C (35°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious and the cold air pierce through your clothing, creating a biting chill that can quickly dampen the spirit for traveling.

December Average Humidity in Nirasaki

This chart illustrates the average monthly humidity levels in Nirasaki, 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 Nirasaki is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Nirasaki

In Nirasaki 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 Nirasaki for better planning.

Maximum UV Index Levels in Nirasaki for December

The chart shows the monthly maximum UV Index (UVI) for Nirasaki 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 Nirasaki typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479101112121210764
Data source: Nirasaki 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 Nirasaki Compares to Other Months

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

This table compares monthly weather conditions in Nirasaki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)48 mm (1.9 inches)76%moderate
February Weather0°C (32°F)60 mm (2.4 inches)74%high
March Weather4°C (40°F)136 mm (5.4 inches)70%very high
April Weather9°C (48°F)129 mm (5.1 inches)74%very high
May Weather14°C (58°F)138 mm (5.4 inches)81%extreme
June Weather17°C (64°F)147 mm (5.8 inches)88%extreme
July Weather21°C (70°F)293 mm (11.6 inches)93%extreme
August Weather23°C (73°F)150 mm (5.9 inches)90%extreme
September Weather18°C (65°F)183 mm (7.2 inches)86%very high
October Weather13°C (55°F)277 mm (10.9 inches)83%high
November Weather7°C (45°F)52 mm (2.0 inches)80%high
December Weather1°C (35°F)54 mm (2.1 inches)78%moderate

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