Weather in Ubon Ratchathani in July
Thailand · 20-year averages, July
A hard month. July asks something of you. Go in knowing what. You should expect rain on 25 days of the month, which is more days wet than dry.
July ranks 7 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 25 of the month's 31 days, 10 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 88% nothing dries, including you.
What the averages hide
Averages flatten a month, and this one hides a few things: 13 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.7 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest July day reached 36.9 °C and the coldest night fell to 21.1 °C, and the wettest single day dropped 110 mm — roughly 37% of the month's rain in one day.
July is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest July on record still delivered 633 mm against 108 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 297 mm average is a reasonable planning figure, not a promise.
Wind is light at 7.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 88% is the real story though — it is the number that decides how the day feels, not the 29.7 °C.
How July sits in the year
Temperatures hold steady either side: 30.9 °C in June, 29.7 here, 29.3 in August. Nothing about the timing within the month matters much.
Daylight in July
Ubon Ratchathani sits close enough to the equator that daylight barely moves all year — 13 hours in July, 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.
July in Ubon Ratchathani versus nearby
If Ubon Ratchathani is one option among several, the nearby comparison is worth making. Siem Reap is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Nakhon Ratchasima is close enough to be a coin toss — within a degree on temperature, 3 days less rain.
So: July is a compromise. December is 32 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 July.
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