Chon Daen, Thailand Climate
The warmest month is April, with an average high of 36°C; the coldest is December, with an average low of 17°C. A normal year brings 1127 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 25
- Normal high
- 29°C
- Normal low
- 23°C
- Reanalysis high
- 31°Cin 2004
- Reanalysis low
- 21°Cin 1995
- Chance of a wet day
- 80%
- Daylight
- 12 h 05 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 31°C | 17°C | 37°C (2005) | 7°C (2016) | 9 mm | 3.1 |
| February | 33°C | 20°C | 39°C (1999) | 9°C (2016) | 11 mm | 2.8 |
| March | 35°C | 23°C | 41°C (1991) | 11°C (2011) | 47 mm | 6.2 |
| April | 36°C | 24°C | 42°C (2019) | 15°C (2018) | 78 mm | 12.0 |
| May | 33°C | 24°C | 42°C (2003) | 20°C (1999) | 146 mm | 21.7 |
| June | 31°C | 24°C | 38°C (2019) | 21°C (2004) | 138 mm | 21.0 |
| July | 30°C | 23°C | 39°C (2015) | 21°C (2015) | 149 mm | 21.7 |
| August | 29°C | 23°C | 35°C (2016) | 21°C (2006) | 198 mm | 24.8 |
| September | 29°C | 23°C | 33°C (2009) | 19°C (2000) | 222 mm | 24.0 |
| October | 29°C | 21°C | 33°C (2019) | 12°C (1994) | 105 mm | 15.5 |
| November | 29°C | 19°C | 35°C (2004) | 11°C (2008) | 18 mm | 3.0 |
| December | 29°C | 17°C | 35°C (2012) | 5°C (1999) | 6 mm | 0.0 |
| Year | 31°C | 21°C | 1127 mm | 156 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1127 mm in a normal year, most in September.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Chon Daen.
The muggiest month is September, when 101 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 14°C | 60% | 31% | 33% | 25% | 10% | 1% | 0% |
| February | 15°C | 54% | 29% | 26% | 28% | 16% | 1% | 0% |
| March | 17°C | 54% | 9% | 16% | 30% | 37% | 7% | 0% |
| April | 20°C | 61% | 1% | 3% | 12% | 47% | 37% | 0% |
| May | 23°C | 74% | 0% | 0% | 1% | 10% | 85% | 5% |
| June | 23°C | 80% | 0% | 0% | 0% | 3% | 91% | 6% |
| July | 23°C | 83% | 0% | 0% | 0% | 2% | 96% | 2% |
| August | 23°C | 85% | 0% | 0% | 0% | 1% | 96% | 3% |
| September | 23°C | 87% | 0% | 0% | 0% | 3% | 92% | 6% |
| October | 22°C | 83% | 0% | 1% | 4% | 25% | 68% | 2% |
| November | 19°C | 76% | 4% | 11% | 28% | 36% | 21% | 0% |
| December | 15°C | 67% | 24% | 27% | 32% | 15% | 2% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is February, with the sky 31 percent covered on average; the cloudiest is August, at 93 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is December, averaging 14.0 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 14, with 13 h 06 min of daylight; the shortest is Dec 15, with 11 h 10 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Chon Daen in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.