Climate Insights for Mường Lay

The climate in Mường Lay is warm and mild. The average annual temperature is 22°C and approximately 2200mm of precipitation falls per year. Mường Lay receives a notable amount of rainfall throughout the year, including during its driest month. Mường Lay is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, June, July. The coldest months are February, December, January, when temperatures can drop to 12°C.

Mường Lay sees moderate temperature variation throughout the year, ranging from 12°C to 30°C. The warmest month is May, when average highs reach 30°C and the mean temperature sits around 25°C. February is the coolest month, with minimum temperatures around 12°C and an average of 17°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 4°C shift in average temperatures.

Mường Lay is a very wet location, receiving approximately 2200mm of precipitation annually, which averages out to around 183mm per month. The wettest month is August, averaging 447mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 32mm. That's 415mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Mường Lay is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.

It is currently summer in Mường Lay, which began on June 21, 2026. Mường Lay is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 30°C, while the coldest stretch bottoms out in February near 12°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Mường Lay is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 62mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Mường Lay based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.