December Weather in Sihai, China

Last updated: August 22, 2025

In December, the average temperature in Sihai, China hovers around -5°C (24°F). Expect chilly days, with minimums plunging to -18°C (0°F) and reaching a maximum of 10°C (50°F). During this month, you might experience light precipitation, averaging 3 mm (0.1 in) over 1 day. With an average humidity of 60%, bundle up to enjoy the crisp air!

December Temperature in Sihai

In December in Sihai, the average temperature is -5°C (24°F). Maximum temperatures can reach 10°C (50°F), while minimums can drop as low as -18°C (0°F). Travelers should be prepared for cold weather and pack accordingly for both mild and harsh conditions.

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

The chart illustrates December temperature patterns in Sihai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sihai, December typically has an average temperature of -5°C (24°F), with highs reaching up to 10°C (50°F) and lows dropping to around -18°C (0°F).

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

December Precipitation in Sihai

In Sihai in December, the precipitation amount is 3 mm (0.1 in) over the course of 1 day.

December Precipitation Trends in Sihai

The chart displays monthly precipitation patterns in Sihai, 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 Sihai, December typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 1 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 Sihai

In Sihai in December humidity is 60%. With an average temperature of -5°C (24°F), this humidity feels like a chilling blanket enveloping you, making travel brisk and invigorating, but also requiring extra layers to stay comfortable in the winter air.

December Average Humidity in Sihai

This chart illustrates the average monthly humidity levels in Sihai, 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 Sihai is approximately 60%, 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 Sihai

In Sihai in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Sihai, you can visit Hourly UV Index in Sihai.

Maximum UV Index Levels in Sihai for December

The chart shows the monthly maximum UV Index (UVI) for Sihai 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 Sihai typically reaches 2, which falls under the low exposure category.

Data source: Sihai 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 Sihai Compares to Other Months

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

This table compares monthly weather conditions in Sihai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	2 mm (0.1 inches)	65%	low
February Weather	-3°C (27°F)	8 mm (0.3 inches)	59%	moderate
March Weather	5°C (42°F)	19 mm (0.7 inches)	52%	moderate
April Weather	12°C (55°F)	22 mm (0.9 inches)	56%	very high
May Weather	19°C (66°F)	29 mm (1.1 inches)	56%	very high
June Weather	23°C (74°F)	63 mm (2.5 inches)	68%	very high
July Weather	25°C (77°F)	262 mm (10.3 inches)	78%	very high
August Weather	24°C (75°F)	197 mm (7.8 inches)	83%	very high
September Weather	19°C (67°F)	75 mm (2.9 inches)	74%	very high
October Weather	10°C (51°F)	37 mm (1.5 inches)	74%	high
November Weather	2°C (37°F)	18 mm (0.7 inches)	58%	moderate
December Weather	-5°C (24°F)	3 mm (0.1 inches)	60%	low