Climate Overview
The climate in Champasak is hot. The average annual temperature is 25°C and approximately 2340mm of precipitation falls per year. July is the wettest month, receiving around 480mm of rainfall. Champasak is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, May. The coldest months are January, December, February, when temperatures can drop to 18°C.
Temperature
Champasak sees moderate temperature variation throughout the year, ranging from 18°C to 33°C. The warmest month is April, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 18°C and an average of 23°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 2°C shift in average temperatures.
Precipitation
Champasak is a very wet location, receiving approximately 2340mm of precipitation annually, which averages out to around 195mm per month. The wettest month is July, averaging 480mm of rainfall. September and August also tend to see above-average precipitation. The driest month is January, with just 10mm. That's 471mm less than July, 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.
Wind
Champasak is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Champasak, which began on September 23, 2026. Champasak 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 April at around 33°C, while the coldest stretch bottoms out in January near 18°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 22 to 33°C. Precipitation is moderate at around 224mm for the season, averaging 75mm per month. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 1115mm across the season with a monthly average of 372mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 952mm across the season with a monthly average of 317mm. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 31°C. Rainfall is relatively light, with around 48mm over the season and a monthly average of 16mm. Winds are generally light, averaging 5km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Champasak is during January, February and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 16mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Champasak 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.