Nong Khai Weather & Climate: Best Time to Visit

The temperature in Nong Khai remains steady throughout the year, providing a consistently very hot climate. On average, daytime temperatures range from a very hot 37°C (99°F) in April to a very warm 30°C (86°F) in December.

Nighttime temperatures range from 26°C (79°F) in April to 17°C (63°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Nong Khai has a relatively rainy climate with high precipitation levels, averaging 1870 mm (74 in) of rainfall annually. The seasons in Nong Khai bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 395 mm (16 in) of precipitation. This rainfall is distributed across 23 rainy days.

In contrast, the driest month, December, experiences much less rainfall, totaling 8.5 mm (0.3 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Nong Khai Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Nong Khai, summer days are longer and more sunny, with daily sunshine hours peaking at 8.3 hours in December. As the darker season arrives, the brightness of the sun becomes less. July sees a soft sun for only 4.3 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Nong Khai.

The city experiences its highest humidity in August, reaching 84%. In March, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year