The best time to visit Ubon Ratchathani is from November to March. April to October are suitable too but there is a lot of rainfall during these months. You should avoid going to Ubon Ratchathani between August to September because it is unusually hot in those months.
| Month | High/Low (°C) | Rain |
|---|---|---|
| January | 33°/ 19° | 1 days |
| February | 34°/ 19° | 0 days |
| March | 36°/ 24° | 6 days |
| April | 35°/ 24° | 13 days |
| May | 34°/ 25° | 28 days |
| June | 34°/ 25° | 19 days |
| July | 32°/ 24° | 28 days |
| August | 30°/ 24° | 28 days |
| September | 30°/ 23° | 22 days |
| October | 32°/ 23° | 12 days |
| November | 31°/ 21° | 3 days |
| December | 31°/ 18° | 0 days |