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December Weather in Hanawa, Japan

Last updated: August 23, 2025

In Hanawa, Japan, the average temperature in December hovers around 4°C (39°F), with a minimum dipping to -4°C (24°F) and a maximum reaching 18°C (64°F). Expect precipitation of about 52 mm (2.1 in) over 6 days of the month, accompanied by a relative humidity of 77%.

December Temperature in Hanawa

In December in Hanawa, the average temperature is 4°C (39°F). The maximum can reach 18°C (64°F), while the minimum can drop as low as -4°C (24°F). Be prepared for a range of temperatures when traveling to Hanawa in December.

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

The chart illustrates December temperature patterns in Hanawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hanawa, December typically has an average temperature of 4°C (39°F), with highs reaching up to 18°C (64°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec353743516267747769594938
Data source: Temperature data for Hanawa 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 Hanawa

In Hanawa in December, the precipitation amount is 52 mm (2.1 in) over the course of 6 days.

December Precipitation Trends in Hanawa

The chart displays monthly precipitation patterns in Hanawa, 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 Hanawa, December typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec44381391191411332361491652205352
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hanawa

In Hanawa in December, humidity is 77%. With an average temperature of 4°C (39°F), this humidity feels like a brisk chill that seeps into your bones, making travel feel invigorating yet uncomfortable without proper layers to stay warm and dry.

December Average Humidity in Hanawa

This chart illustrates the average monthly humidity levels in Hanawa, 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 Hanawa 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 Hanawa

In Hanawa 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 Hanawa, you can check the information here.

Maximum UV Index Levels in Hanawa for December

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

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

This table compares monthly weather conditions in Hanawa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)44 mm (1.7 inches)76%moderate
February Weather3°C (37°F)38 mm (1.5 inches)75%moderate
March Weather6°C (44°F)139 mm (5.5 inches)72%high
April Weather11°C (51°F)119 mm (4.7 inches)73%very high
May Weather16°C (62°F)141 mm (5.6 inches)80%very high
June Weather20°C (67°F)133 mm (5.2 inches)87%extreme
July Weather23°C (75°F)236 mm (9.3 inches)92%extreme
August Weather25°C (78°F)149 mm (5.9 inches)90%extreme
September Weather21°C (69°F)165 mm (6.5 inches)84%very high
October Weather15°C (59°F)220 mm (8.6 inches)80%high
November Weather9°C (49°F)53 mm (2.1 inches)77%moderate
December Weather4°C (39°F)52 mm (2.1 inches)77%moderate

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