September Weather in Muong Lay, Vietnam

Last updated: August 28, 2025

In September, the average temperature in Muong Lay, Vietnam is a pleasant 25°C (77°F). You can expect a range from a cozy 18°C (64°F) to a warm 33°C (92°F). This month brings approximately 192 mm (7.5 in) of rain over 20 days, resulting in an average humidity of 82%. Enjoy the tropical climate, but don't forget your umbrella!

September Temperature in Muong Lay

In September, in Muong Lay, the average temperature is 25°C (77°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 18°C (64°F). This makes it an ideal time to explore outdoor activities and enjoy the pleasant weather.

September Weather in Muong Lay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Muong Lay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Muong Lay, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (92°F) and lows dropping to around 18°C (64°F).

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

September Precipitation in Muong Lay

In Muong Lay in September, the precipitation amount is 192 mm (7.5 in) over a span of 20 days.

September Precipitation Trends in Muong Lay

The chart displays monthly precipitation patterns in Muong Lay, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Muong Lay, September typically receives around 192 mm (7.5 inches) of precipitation spread over approximately 20 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Muong Lay

In Muong Lay in September, humidity is 82%. With an average temperature of 25°C (77°F), this humidity feels like a warm, oppressive blanket enveloping you as you explore, making every step feel more laborious and prompting the need for frequent hydration breaks.

September Average Humidity in Muong Lay

This chart illustrates the average monthly humidity levels in Muong Lay, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Muong Lay is approximately 82%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Muong Lay

In Muong Lay in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Muong Lay, you can check here.

Maximum UV Index Levels in Muong Lay for September

The chart shows the monthly maximum UV Index (UVI) for Muong Lay in September, 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 September, the maximum UV index in Muong Lay typically reaches 14, which falls under the extreme exposure category.

Data source: Muong Lay September 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 September Weather in Muong Lay Compares to Other Months

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

This table compares monthly weather conditions in Muong Lay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (62°F)	78 mm (3.1 inches)	63%	very high
February Weather	17°C (63°F)	58 mm (2.3 inches)	65%	very high
March Weather	21°C (69°F)	138 mm (5.4 inches)	57%	extreme
April Weather	23°C (73°F)	213 mm (8.4 inches)	50%	extreme
May Weather	25°C (77°F)	204 mm (8.0 inches)	68%	extreme
June Weather	26°C (79°F)	425 mm (16.7 inches)	79%	extreme
July Weather	26°C (78°F)	405 mm (15.9 inches)	91%	extreme
August Weather	26°C (78°F)	404 mm (15.9 inches)	92%	extreme
September Weather	25°C (77°F)	192 mm (7.5 inches)	82%	extreme
October Weather	23°C (73°F)	124 mm (4.9 inches)	76%	extreme
November Weather	20°C (68°F)	56 mm (2.2 inches)	72%	very high
December Weather	17°C (62°F)	50 mm (2.0 inches)	68%	high