Climate averages 1991–2020
Udon Thani weather
in August.
A hot, very wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Udon Thani: daytime highs average 30.1°C and nights cool to about 24.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 331 mm of rain on roughly 27 days, which makes August a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average August day.
The nearest other city in this atlas is Vientiane (64 km away). In August its highs average 29.6°C, about as warm as Udon Thani, with 401 mm of rain.
Among the 46 cities listed in Thailand, Udon Thani ranks joint 35th of 46 for the warmest August highs and 44th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Udon Thani is 0.7°C cooler than that mean.
From August to September, average highs fall by 0.2°C to 29.9°C, and monthly rainfall falls from 331 mm to 276 mm.
The annual picture
August 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
Udon Thani climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.0°C17.1°C | 17.1°C | 7.6 | 1.5 | 11.211 h |
| February | 30.5°C19.1°C | 19.1°C | 14 | 2.4 | 11.612 h |
| March | 33.1°C22.3°C | 22.3°C | 31 | 5.8 | 12.012 h |
| April | 34.3°C24.7°C | 24.7°C | 62 | 10.4 | 12.513 h |
| May | 32.6°C25.1°C | 25.1°C | 211 | 21.8 | 12.913 h |
| June | 31.4°C25.1°C | 25.1°C | 221 | 23.0 | 13.213 h |
| July | 30.6°C24.7°C | 24.7°C | 266 | 25.6 | 13.113 h |
| August, selected | 30.1°C24.3°C | 24.3°C | 331 | 26.9 | 12.713 h |
| September | 29.9°C23.7°C | 23.7°C | 276 | 24.5 | 12.212 h |
| October | 29.4°C22.3°C | 22.3°C | 96 | 11.8 | 11.812 h |
| November | 28.9°C20.0°C | 20.0°C | 20 | 2.9 | 11.311 h |
| December | 27.4°C17.3°C | 17.3°C | 6.4 | 0.9 | 11.111 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
August in nearby cities
- Vientiane in AugustLaos · 64 kmHigh 29.6°C · Low 24.1°C · 401 mm rain
- Khon Kaen in AugustThailand · 108 kmHigh 30.8°C · Low 24.5°C · 214 mm rain
- Sakon Nakhon in AugustThailand · 147 kmHigh 29.9°C · Low 24.3°C · 355 mm rain
- Thakhèk in AugustLaos · 217 kmHigh 29.2°C · Low 23.6°C · 493 mm rain
- Savannakhet in AugustLaos · 230 kmHigh 29.6°C · Low 23.9°C · 294 mm rain
- Nakhon Ratchasima in AugustThailand · 282 kmHigh 31.3°C · Low 24.5°C · 161 mm rain
- Ubon Ratchathani in AugustThailand · 327 kmHigh 30.3°C · Low 24.3°C · 270 mm rain
- Vinh in AugustVietnam · 338 kmHigh 31.9°C · Low 26.4°C · 222 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 Udon Thani) is explained once on the Udon Thani year overview and on the Sources, method and limits page.