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December Weather in Sakai, Japan

Last updated: August 23, 2025

In December, the average temperature in Sakai, Japan hovers around 7°C (44°F). Expect a chilly minimum of -4°C (24°F), while temperatures can soar to a pleasant maximum of 21°C (70°F). With 47 mm (1.8 in) of precipitation spread over 5 days, don't forget your umbrella! The air remains comfortably humid, with an average humidity of 78%.

December Temperature in Sakai

In December in Sakai, the average temperature is 7°C (44°F). Maximums can reach 21°C (70°F), while minimums can drop as low as -4°C (24°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Sakai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sakai, December typically has an average temperature of 7°C (44°F), with highs reaching up to 21°C (70°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec404250586773798375655544
Data source: Temperature data for Sakai 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 Sakai

In Sakai in December, the total precipitation amount is 47 mm (1.8 in) over the course of 5 days.

December Precipitation Trends in Sakai

The chart displays monthly precipitation patterns in Sakai, 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 Sakai, December typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec39381221111111352251121672496347
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sakai

In Sakai in December, humidity is 78%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek cozy indoor spaces or warm beverages for comfort.

December Average Humidity in Sakai

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

In Sakai 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 Sakai, you can check the information here.

Maximum UV Index Levels in Sakai for December

The chart shows the monthly maximum UV Index (UVI) for Sakai 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 Sakai typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101011109753
Data source: Sakai 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 Sakai Compares to Other Months

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

This table compares monthly weather conditions in Sakai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)39 mm (1.5 inches)76%moderate
February Weather6°C (43°F)38 mm (1.5 inches)74%moderate
March Weather10°C (51°F)122 mm (4.8 inches)70%very high
April Weather14°C (58°F)111 mm (4.4 inches)74%very high
May Weather20°C (68°F)111 mm (4.4 inches)81%very high
June Weather23°C (73°F)134 mm (5.3 inches)88%very high
July Weather26°C (80°F)225 mm (8.8 inches)93%extreme
August Weather28°C (83°F)112 mm (4.4 inches)90%very high
September Weather24°C (75°F)167 mm (6.6 inches)86%very high
October Weather18°C (65°F)249 mm (9.8 inches)83%high
November Weather13°C (55°F)63 mm (2.5 inches)80%moderate
December Weather7°C (44°F)47 mm (1.8 inches)78%moderate

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