Udon Thani Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Udon Thani, Udon Thani Province, Thailand. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's now guide you through the details for a complete overview.
Udon Thani is known for its substantial rainfall, with annual precipitation reaching 1591 mm (63 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
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.August, the wettest month, has a maximum daytime temperature of 33°C (91°F). The city receives 135 hours of sunshine in this period. During the driest month December you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Udon Thani Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Udon Thani's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Udon Thani spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Thailand: City Comparison
The map below shows the annual precipitation across Thailand. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Udon Thani vs World: Rainfall Compared
Udon Thani's average annual precipitation is 1591 mm (63 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Precipitation has a very strong role in determining the local climate and ecosystem:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Udon Thani's weather, including sunshine hours, humidity levels, and temperature data, visit our Udon Thani Climate page.
