December Weather in Si Ma Cai, Vietnam

Last updated: August 28, 2025

In Si Ma Cai, Vietnam, the average temperature in December hovers around 13°C (56°F), creating a mild yet refreshing atmosphere. Expect temperature variations, with a minimum of 1°C (34°F) and a comfortable maximum of 24°C (76°F). During this month, you'll experience 35 mm (1.4 in) of precipitation over approximately 7 days, accompanied by an average humidity of 69%. Perfect for those who enjoy a cool, damp climate!

December Temperature in Si Ma Cai

In December in Si Ma Cai, the average temperature is 13°C (56°F), with maximums reaching up to 24°C (76°F) and minimums dipping as low as 1°C (34°F). It's a great time to visit if you enjoy mild weather and are prepared for some variability in temperatures.

December Weather in Si Ma Cai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Si Ma Cai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Ma Cai, December typically has an average temperature of 13°C (56°F), with highs reaching up to 24°C (76°F) and lows dropping to around 1°C (34°F).

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

December Precipitation in Si Ma Cai

In Si Ma Cai in December, the precipitation amount is 35 mm (1.4 in) over the course of 7 days.

December Precipitation Trends in Si Ma Cai

The chart displays monthly precipitation patterns in Si Ma Cai, 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 Si Ma Cai, December typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 7 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 Si Ma Cai

In Si Ma Cai in December humidity is 69%. With an average temperature of 13°C (56°F), this humidity feels like a cool and damp embrace, which might make traveling somewhat uncomfortable as the air weighs down on you, adding to the chill and making your clothes cling.

December Average Humidity in Si Ma Cai

This chart illustrates the average monthly humidity levels in Si Ma Cai, 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 Si Ma Cai is approximately 69%, 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 Si Ma Cai

In Si Ma Cai in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Si Ma Cai.

Maximum UV Index Levels in Si Ma Cai for December

The chart shows the monthly maximum UV Index (UVI) for Si Ma Cai 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 Si Ma Cai typically reaches 8, which falls under the very high exposure category.

Data source: Si Ma Cai 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 Si Ma Cai Compares to Other Months

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

This table compares monthly weather conditions in Si Ma Cai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	42 mm (1.7 inches)	57%	very high
February Weather	14°C (58°F)	28 mm (1.1 inches)	67%	very high
March Weather	18°C (65°F)	41 mm (1.6 inches)	58%	extreme
April Weather	20°C (69°F)	92 mm (3.6 inches)	53%	extreme
May Weather	23°C (74°F)	107 mm (4.2 inches)	69%	extreme
June Weather	25°C (77°F)	182 mm (7.2 inches)	83%	extreme
July Weather	24°C (76°F)	329 mm (12.9 inches)	90%	extreme
August Weather	24°C (76°F)	455 mm (17.9 inches)	90%	extreme
September Weather	23°C (74°F)	229 mm (9.0 inches)	81%	extreme
October Weather	20°C (69°F)	156 mm (6.1 inches)	75%	extreme
November Weather	17°C (63°F)	37 mm (1.5 inches)	74%	very high
December Weather	13°C (56°F)	35 mm (1.4 inches)	69%	very high