Udon Thani Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Udon Thani.
Climate overview of Udon Thani
The climate in Udon Thani, Udon Thani Province, Thailand, is remarkably consistent, with temperatures year-round averaging 33°C (91°F). The warmest month is April at 37°C (99°F), and the coolest is December at 30°C (86°F).
The city has a wet climate, receiving around 1591 mm (63 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. December is the sunniest month, averaging 8.3 hours of sunshine per day.
Udon Thani Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Udon Thani - and find the best time to visit.
Monthly Temperature in Udon Thani
In Udon Thani temperatures are generally consistent throughout the year. 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 Udon Thani
Udon Thani experiences significant rainfall throughout the year, averaging 1591 mm (63 in) of precipitation annually. The seasons in Udon Thani bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 329 mm (13 in) of precipitation. This rainfall is distributed across 21 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 7.1 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 Udon Thani 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 Udon Thani
In Udon Thani, 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 Udon Thani by Month
The relative humidity is high throughout the year in Udon Thani.
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 Udon Thani
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 Udon Thani
What is the best time to visit Udon Thani?
January, November and December typically offer the most optimal weather in Udon Thani. In contrast, March, April, May, June, July, August, September and October tend to have less optimal conditions. Udon Thani has distinct dry (November to March) and wet (May to September) seasons.
What temperatures can I expect in Udon Thani?
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 Udon Thani get?
Annual rainfall is around 1591 mm (63 in). August is the wettest month with 329 mm (13 in), while December is the driest with 7.1 mm (0.3 in).
How sunny is Udon Thani?
Udon Thani 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, Udon Thani enjoys abundant sunshine.
Udon Thani 3-Day Forecast
Udon Thani on the map
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