Climate averages 1991–2020
Khon Kaen weather
in December.
A hot, very dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Khon Kaen: daytime highs average 28.3°C and nights cool to about 18.3°C. By daytime temperature it is the coolest month of the year.
Expect about 5.1 mm of rain on roughly 1 day, which makes December a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average December day.
The nearest other city in this atlas is Udon Thani (108 km away). In December its highs average 27.4°C, 1.0°C cooler than Khon Kaen, with 6.4 mm of rain.
Among the 46 cities listed in Thailand, Khon Kaen ranks 36th of 46 for the warmest December highs and joint 2nd of 46 for the driest December (rainfall, lowest first). The mean December high of those 46 cities is 29.6°C; Khon Kaen is 1.3°C cooler than that mean.
From December to January, average highs rise by 1.0°C to 29.3°C, and monthly rainfall rises from 5.1 mm to 7.2 mm.
The annual picture
December 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
Khon Kaen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C18.1°C | 18.1°C | 7.2 | 1.7 | 11.311 h |
| February | 31.7°C19.9°C | 19.9°C | 11 | 2.4 | 11.612 h |
| March | 34.0°C23.2°C | 23.2°C | 34 | 5.9 | 12.012 h |
| April | 34.9°C25.2°C | 25.2°C | 65 | 10.7 | 12.512 h |
| May | 33.4°C25.4°C | 25.4°C | 152 | 20.1 | 12.913 h |
| June | 32.4°C25.4°C | 25.4°C | 134 | 19.1 | 13.113 h |
| July | 31.7°C25.0°C | 25.0°C | 164 | 20.2 | 13.013 h |
| August | 30.8°C24.5°C | 24.5°C | 214 | 23.3 | 12.713 h |
| September | 30.1°C23.8°C | 23.8°C | 237 | 23.3 | 12.212 h |
| October | 29.6°C22.5°C | 22.5°C | 104 | 12.8 | 11.812 h |
| November | 29.4°C20.6°C | 20.6°C | 24 | 3.5 | 11.411 h |
| December, selected | 28.3°C18.3°C | 18.3°C | 5.1 | 1.0 | 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
December in nearby cities
- Udon Thani in DecemberThailand · 108 kmHigh 27.4°C · Low 17.3°C · 6.4 mm rain
- Sakon Nakhon in DecemberThailand · 161 kmHigh 27.6°C · Low 17.2°C · 5.5 mm rain
- Vientiane in DecemberLaos · 171 kmHigh 26.9°C · Low 17.3°C · 8.4 mm rain
- Nakhon Ratchasima in DecemberThailand · 182 kmHigh 28.9°C · Low 19.1°C · 5.3 mm rain
- Savannakhet in DecemberLaos · 206 kmHigh 27.7°C · Low 17.8°C · 4.9 mm rain
- Thakhèk in DecemberLaos · 238 kmHigh 27.7°C · Low 16.3°C · 5.8 mm rain
- Ubon Ratchathani in DecemberThailand · 254 kmHigh 29.4°C · Low 19.5°C · 6.3 mm rain
- Nakhon Sawan in DecemberThailand · 300 kmHigh 29.8°C · Low 20.2°C · 7.7 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 Khon Kaen) is explained once on the Khon Kaen year overview and on the Sources, method and limits page.