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December Weather in Miyakonojo, Japan

Last updated: August 23, 2025

In December, the average temperature in Miyakonojo, Japan hovers around 8°C (46°F), with a minimum dipping as low as -4°C (25°F) and a maximum reaching up to 23°C (73°F). Expect a fair amount of precipitation during your stay, totaling about 78 mm (3.1 in) over 7 days. With an average humidity of 74%, be prepared for a moist and cool atmosphere!

December Temperature in Miyakonojo

In December in Miyakonojo, the average temperature is 8°C (46°F), with maximums reaching 23°C (73°F) and minimums dipping as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures, so it's advisable to pack layers for comfort during their stay.

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

The chart illustrates December temperature patterns in Miyakonojo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miyakonojo, December typically has an average temperature of 8°C (46°F), with highs reaching up to 23°C (73°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec434553606772798176675646
Data source: Temperature data for Miyakonojo 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 Miyakonojo

In Miyakonojo in December, the total precipitation amount is 78 mm (3.1 in) over a duration of 7 days.

December Precipitation Trends in Miyakonojo

The chart displays monthly precipitation patterns in Miyakonojo, 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 Miyakonojo, December typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec561041731452453753842272791709378
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Miyakonojo

In Miyakonojo in December, humidity is 74%. With an average temperature of 8°C (46°F), this humidity feels like a chilly embrace, making travel slightly uncomfortable as the damp air penetrates your clothing, leaving you feeling cool and clammy while exploring the area.

December Average Humidity in Miyakonojo

This chart illustrates the average monthly humidity levels in Miyakonojo, 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 Miyakonojo is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Miyakonojo

In Miyakonojo in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Miyakonojo.

Maximum UV Index Levels in Miyakonojo for December

The chart shows the monthly maximum UV Index (UVI) for Miyakonojo 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 Miyakonojo typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610101212121311865
Data source: Miyakonojo 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 Miyakonojo Compares to Other Months

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

This table compares monthly weather conditions in Miyakonojo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)56 mm (2.2 inches)72%moderate
February Weather7°C (45°F)104 mm (4.1 inches)68%high
March Weather12°C (53°F)173 mm (6.8 inches)72%very high
April Weather16°C (60°F)145 mm (5.7 inches)79%very high
May Weather19°C (67°F)244 mm (9.6 inches)83%extreme
June Weather22°C (73°F)375 mm (14.8 inches)86%extreme
July Weather26°C (79°F)384 mm (15.1 inches)90%extreme
August Weather27°C (81°F)227 mm (8.9 inches)85%extreme
September Weather24°C (76°F)279 mm (11.0 inches)80%extreme
October Weather20°C (67°F)170 mm (6.7 inches)78%very high
November Weather13°C (56°F)93 mm (3.7 inches)76%high
December Weather8°C (46°F)78 mm (3.1 inches)74%moderate

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