December Weather in Saiki, Japan

Last updated: August 23, 2025

In December, the average temperature in Saiki, Japan is a refreshing 11°C (51°F). Expect a minimum of 2°C (36°F) and a pleasant maximum of 22°C (71°F) throughout the month. With an average precipitation of 61 mm (2.4 in) spread over 6 days, you may want to carry an umbrella. The average humidity sits at a comfortable 79%, adding to the unique atmosphere of the season.

December Temperature in Saiki

In December in Saiki, the average temperature is 11°C (51°F). Maximum temperatures can reach 22°C (71°F), while the minimum can drop as low as 2°C (36°F). Therefore, travelers should prepare for a mix of mild and cooler weather while exploring the area.

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

The chart illustrates December temperature patterns in Saiki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saiki, December typically has an average temperature of 11°C (51°F), with highs reaching up to 22°C (71°F) and lows dropping to around 2°C (36°F).

Data source: Temperature data for Saiki generated using information from the Copernicus Climate Change Service.

December Precipitation in Saiki

In Saiki in December, the total precipitation amount is 61 mm (2.4 in) spread over a period of 6 days.

December Precipitation Trends in Saiki

The chart displays monthly precipitation patterns in Saiki, 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 Saiki, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Saiki

In Saiki in December, humidity is 79%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill in the air, making it necessary to dress in layers while exploring the local sights, as the coolness combined with the high moisture can create an uncomfortable, sticky atmosphere for travelers.

December Average Humidity in Saiki

This chart illustrates the average monthly humidity levels in Saiki, 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 Saiki is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saiki

In Saiki 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 Saiki for better planning.

Maximum UV Index Levels in Saiki for December

The chart shows the monthly maximum UV Index (UVI) for Saiki 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 Saiki typically reaches 4, which falls under the moderate exposure category.

Data source: Saiki 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 Saiki Compares to Other Months

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

This table compares monthly weather conditions in Saiki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	57 mm (2.3 inches)	75%	moderate
February Weather	9°C (48°F)	81 mm (3.2 inches)	71%	high
March Weather	12°C (55°F)	126 mm (5.0 inches)	71%	very high
April Weather	16°C (61°F)	118 mm (4.7 inches)	78%	very high
May Weather	20°C (68°F)	163 mm (6.4 inches)	84%	extreme
June Weather	23°C (73°F)	221 mm (8.7 inches)	86%	extreme
July Weather	26°C (80°F)	326 mm (12.8 inches)	92%	extreme
August Weather	28°C (82°F)	195 mm (7.7 inches)	91%	extreme
September Weather	25°C (77°F)	224 mm (8.8 inches)	84%	very high
October Weather	21°C (70°F)	259 mm (10.2 inches)	83%	high
November Weather	16°C (60°F)	61 mm (2.4 inches)	81%	high
December Weather	11°C (51°F)	61 mm (2.4 inches)	79%	moderate