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December Weather in Omaezaki, Japan

Last updated: August 23, 2025

In December, the average temperature in Omaezaki, Japan hovers around 12°C (55°F), with minimums dipping to 4°C (39°F) and maximums reaching a pleasant 22°C (71°F). Expect around 99 mm (3.9 in) of precipitation spread over 10 days, coupled with an average humidity of 78%. Perfect for those who enjoy a refreshing, mild climate!

December Temperature in Omaezaki

In December in Omaezaki, the average temperature is 12°C (55°F), with maximums reaching 22°C (71°F) and minimums dipping as low as 4°C (39°F). This mild climate makes Omaezaki an ideal destination for outdoor activities and sightseeing.

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

The chart illustrates December temperature patterns in Omaezaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omaezaki, December typically has an average temperature of 12°C (55°F), with highs reaching up to 22°C (71°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec495055606772788178716354
Data source: Temperature data for Omaezaki 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 Omaezaki

In Omaezaki in December, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.

December Precipitation Trends in Omaezaki

The chart displays monthly precipitation patterns in Omaezaki, 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 Omaezaki, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec709318916421330236316325532813799
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Omaezaki

In Omaezaki in December humidity is 78%. With average temperature 12°C (55°F), this humidity feels like a damp chill that wraps around you, making outdoor activities less enjoyable and travel a bit uncomfortable unless you're layered appropriately.

December Average Humidity in Omaezaki

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

In Omaezaki 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 Omaezaki for better planning.

Maximum UV Index Levels in Omaezaki for December

The chart shows the monthly maximum UV Index (UVI) for Omaezaki 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 Omaezaki typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Omaezaki 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 Omaezaki Compares to Other Months

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

This table compares monthly weather conditions in Omaezaki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (49°F)70 mm (2.8 inches)76%moderate
February Weather10°C (50°F)93 mm (3.7 inches)74%high
March Weather13°C (55°F)189 mm (7.4 inches)70%very high
April Weather16°C (60°F)164 mm (6.4 inches)74%very high
May Weather19°C (67°F)213 mm (8.4 inches)81%extreme
June Weather22°C (72°F)302 mm (11.9 inches)88%extreme
July Weather25°C (78°F)363 mm (14.3 inches)93%extreme
August Weather27°C (81°F)163 mm (6.4 inches)90%extreme
September Weather25°C (78°F)255 mm (10.0 inches)86%very high
October Weather22°C (71°F)328 mm (12.9 inches)83%high
November Weather17°C (63°F)137 mm (5.4 inches)80%moderate
December Weather12°C (55°F)99 mm (3.9 inches)78%moderate

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