Climate averages 1991–2020
Ubon Ratchathani weather
in April.
A very hot, moderately wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a very hot month in Ubon Ratchathani: daytime highs average 34.5°C and nights cool to about 25.3°C. By daytime temperature it is the warmest month of the year.
Expect about 81 mm of rain on roughly 13 days, which makes April a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 28 min on an average April day.
The nearest other city in this atlas is Pakse (103 km away). In April its highs average 33.9°C, 0.6°C cooler than Ubon Ratchathani, with 53 mm of rain.
Among the 46 cities listed in Thailand, Ubon Ratchathani ranks joint 18th of 46 for the warmest April highs and joint 23rd of 46 for the driest April (rainfall, lowest first). The mean April high of those 46 cities is 33.9°C; Ubon Ratchathani is 0.6°C warmer than that mean.
From April to May, average highs fall by 1.5°C to 33.0°C, and monthly rainfall rises from 81 mm to 181 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ubon Ratchathani climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.4°C19.1°C | 19.1°C | 4.7 | 1.4 | 11.311 h |
| February | 32.2°C20.9°C | 20.9°C | 9.9 | 1.9 | 11.612 h |
| March | 34.1°C23.7°C | 23.7°C | 35 | 6.3 | 12.012 h |
| April, selected | 34.5°C25.3°C | 25.3°C | 81 | 12.9 | 12.512 h |
| May | 33.0°C25.4°C | 25.4°C | 181 | 22.4 | 12.813 h |
| June | 31.7°C25.1°C | 25.1°C | 194 | 23.2 | 13.013 h |
| July | 30.9°C24.6°C | 24.6°C | 232 | 26.2 | 12.913 h |
| August | 30.3°C24.3°C | 24.3°C | 270 | 26.9 | 12.613 h |
| September | 29.9°C23.8°C | 23.8°C | 273 | 25.6 | 12.212 h |
| October | 29.8°C22.7°C | 22.7°C | 124 | 15.0 | 11.812 h |
| November | 29.9°C21.4°C | 21.4°C | 31 | 4.7 | 11.411 h |
| December | 29.4°C19.5°C | 19.5°C | 6.3 | 1.3 | 11.211 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Pakse in AprilLaos · 103 kmHigh 33.9°C · Low 24.4°C · 53 mm rain
- Savannakhet in AprilLaos · 148 kmHigh 33.8°C · Low 24.2°C · 66 mm rain
- Sakon Nakhon in AprilThailand · 227 kmHigh 33.7°C · Low 24.5°C · 73 mm rain
- Siem Reap in AprilCambodia · 234 kmHigh 34.2°C · Low 26.1°C · 94 mm rain
- Thakhèk in AprilLaos · 242 kmHigh 33.3°C · Low 23.4°C · 69 mm rain
- Khon Kaen in AprilThailand · 254 kmHigh 34.9°C · Low 25.2°C · 65 mm rain
- Nakhon Ratchasima in AprilThailand · 296 kmHigh 35.0°C · Low 25.0°C · 69 mm rain
- Battambang in AprilCambodia · 297 kmHigh 35.3°C · Low 25.6°C · 83 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ubon Ratchathani) is explained once on the Ubon Ratchathani year overview and on the Sources, method and limits page.