Climate Insights for Thakhek

The climate in Thakhek is hot. The average annual temperature is 26°C and approximately 2096mm of precipitation falls per year. July is the wettest month, receiving around 495mm of rainfall. Thakhek is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, March. The coldest months are January, December, February, when temperatures can drop to 16°C.

Thakhek sees moderate temperature variation throughout the year, ranging from 16°C to 34°C. The warmest month is April, when average highs reach 34°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 16°C and an average of 22°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 3°C shift in average temperatures.

Thakhek is a very wet location, receiving approximately 2096mm of precipitation annually, which averages out to around 175mm per month. The wettest month is July, averaging 495mm of rainfall. August and September also tend to see above-average precipitation. The driest month is December, with just 4mm. That's 491mm 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.

Thakhek is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9km/h in winter, 7km/h in spring, 6km/h in summer, 6km/h in autumn.

It is currently autumn in Thakhek, which began on September 23, 2026. Thakhek 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 34°C, while the coldest stretch bottoms out in January near 16°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Thakhek is during January, February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 14mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 34°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Thakhek 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.