Weather in Ubon Ratchathani in October
Thailand · 20-year averages, October
Shoulder season. October is shoulder season in Ubon Ratchathani — cheaper, quieter, and a genuine gamble. The heat itself is manageable at 29.9 °C, but 86% humidity is what you will actually feel.
October ranks 4 of 12 in Ubon Ratchathani: past the worst of the year but short of December, which is the month to book if the dates are open.
Rain on 12 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Natural fibres and a second shirt for the day. At 86% nothing dries, including you.
What the averages hide
Averages flatten a month, and this one hides a few things: 17 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest October day reached 33.3 °C and the coldest night fell to 15.1 °C, and the wettest single day dropped 69 mm — roughly 64% of the month's rain in one day.
October is moderately variable: 3 mm in the driest year against 237 mm in the wettest, around an average of 108 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.
Wind is light at 6.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 86% is the real story though — it is the number that decides how the day feels, not the 29.9 °C.
How October sits in the year
Temperatures hold steady either side: 29.4 °C in September, 29.9 here, 30.3 in November. Nothing about the timing within the month matters much. Rain is the thing that moves: November brings 8 days less of it, so pushing the dates later buys drier weather.
Daylight in October
Ubon Ratchathani sits close enough to the equator that daylight barely moves all year — 11.8 hours in October, against a range of just 1.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.
An inland climate
Despite being inland, the year stays fairly even: 17.8 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
October in Ubon Ratchathani versus nearby
If Ubon Ratchathani is one option among several, the nearby comparison is worth making. Siem Reap is the weaker option in October — within a degree on temperature, 6 days more rain. Nakhon Ratchasima is close enough to be a coin toss — within a degree on temperature, 4 days more rain.
So: October is a compromise. December is 20 points better and is what Ubon Ratchathani is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Ubon Ratchathani
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 33.3 | 19.1 | 1 | 5 | 57 | 11.3 | 70 |
| February | 35.6 | 21.5 | 1 | 6 | 49 | 11.6 | 48 |
| March | 36.8 | 24.6 | 6 | 32 | 50 | 12 | 45 |
| April | 36.6 | 26 | 11 | 73 | 56 | 12.5 | 36 |
| May | 33.4 | 25.3 | 21 | 173 | 73 | 12.8 | 36 |
| June | 30.9 | 24.5 | 22 | 202 | 84 | 13 | 44 |
| July | 29.7 | 24 | 25 | 297 | 88 | 13 | 46 |
| August | 29.3 | 23.9 | 26 | 299 | 89 | 12.7 | 47 |
| September | 29.4 | 23.7 | 24 | 301 | 89 | 12.2 | 46 |
| October | 29.9 | 22.3 | 12 | 108 | 86 | 11.8 | 58 |
| November | 30.3 | 20.7 | 4 | 21 | 80 | 11.4 | 77 |
| December | 31.5 | 19 | 1 | 7 | 67 | 11.2 | 78 |
See all twelve months in Ubon Ratchathani, or where else to go in October.
Planning the rest of the trip
- Flight time to Ubon Ratchathani how long you are actually in the air
- Ubon Ratchathani time zone and the difference from home
- Days until your trip count down to the departure date