Nong Khai Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Nong Khai.
Climate overview of Nong Khai
Nong Khai, Nong Khai Province, Thailand, enjoys a steady climate throughout the year, with daytime temperatures typically around 33°C (91°F). April is the warmest month at 37°C (99°F), while December is the coolest at 30°C (86°F).
The city has a wet climate, receiving around 1870 mm (74 in) of rainfall per year. Despite the high annual total, it has distinct dry (November to March) and wet (May to September) seasons. August is the wettest month. The most sunshine falls in December, with an average of 8.3 hours of daily sunshine.
Nong Khai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Nong Khai - and find the best time to visit.
Monthly Temperature in Nong Khai
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
Rainfall in Nong Khai
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
Sunshine Hours in Nong Khai
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
Humidity in Nong Khai by Month
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
Best Time to Visit Nong Khai
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, November and December
- Warmest weather: March and April
- Most sunshine: January and December
- Fewest rainy days: January, February, November and December
- Wettest months: May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to March) and wet (May to September) seasons
Frequently asked questions about the climate in Nong Khai
What is the best time to visit Nong Khai?
January, November and December typically offer the most optimal weather in Nong Khai. In contrast, March, April, May, June, July, August and September tend to have less optimal conditions. Nong Khai has distinct dry (November to March) and wet (May to September) seasons.
What temperatures can I expect in Nong Khai?
Daytime highs range from 30°C (86°F) in December to 37°C (99°F) in April. Nighttime lows range from 17°C (63°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Nong Khai get?
Annual rainfall is around 1870 mm (74 in). August is the wettest month with 395 mm (16 in), while December is the driest with 8.5 mm (0.3 in).
How sunny is Nong Khai?
Nong Khai receives around 2,362 hours of sunshine per year. December is the sunniest month with 249 hours, while July is the cloudiest with just 130 hours. Overall, Nong Khai enjoys abundant sunshine.
Nong Khai 3-Day Forecast
Nong Khai 3-Day Forecast
Nong Khai on the map
Nong Khai is highlighted - select any city to see its climate.
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