October Weather in Si Ma Cai, Vietnam

Last updated: August 28, 2025

In Si Ma Cai, Vietnam, the average temperature in October hovers around 20°C (69°F). Expect minimums as low as 11°C (52°F) and maximums reaching 28°C (83°F). During this month, you'll likely encounter 156 mm (6.1 in) of precipitation spread over 20 days, contributing to an average humidity of 75%. Prepare for a mix of warm days and occasional rain as you enjoy the season!

October Temperature in Si Ma Cai

In October in Si Ma Cai, the average temperature is 20°C (69°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as 11°C (52°F). This pleasant climate makes it an ideal time for travelers to explore the outdoor attractions and enjoy the local scenery.

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

The chart illustrates October 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, October typically has an average temperature of 20°C (69°F), with highs reaching up to 28°C (83°F) and lows dropping to around 11°C (52°F).

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

October Precipitation in Si Ma Cai

In Si Ma Cai in October, the precipitation amount is 156 mm (6.1 in) over the course of 20 days.

October Precipitation Trends in Si Ma Cai

The chart displays monthly precipitation patterns in Si Ma Cai, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Si Ma Cai, October typically receives around 156 mm (6.1 inches) of precipitation spread over approximately 20 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Si Ma Cai

In Si Ma Cai in October, humidity is 75%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making travel a bit muggy and requiring frequent hydration breaks to stay comfortable while exploring.

October Average Humidity in Si Ma Cai

This chart illustrates the average monthly humidity levels in Si Ma Cai, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Si Ma Cai is approximately 75%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Si Ma Cai

In Si Ma Cai in October, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Si Ma Cai.

Maximum UV Index Levels in Si Ma Cai for October

The chart shows the monthly maximum UV Index (UVI) for Si Ma Cai in October, 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 October, the maximum UV index in Si Ma Cai typically reaches 12, which falls under the extreme exposure category.

Data source: Si Ma Cai October 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 October 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 October’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 October’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