Chang-hua, Taiwan Climate
The warmest month is July, with an average high of 30°C; the coldest is January, with an average low of 13°C. A normal year brings 1694 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 26
- Normal high
- 30°C
- Normal low
- 23°C
- Reanalysis high
- 34°Cin 2003
- Reanalysis low
- 20°Cin 1994
- Chance of a wet day
- 36%
- Daylight
- 12 h 02 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 | 22°C | 13°C | 29°C (2006) | 4°C (2016) | 47 mm | 6.2 |
| February | 23°C | 14°C | 32°C (2009) | 6°C (2016) | 65 mm | 8.5 |
| March | 25°C | 16°C | 31°C (2015) | 6°C (2005) | 87 mm | 12.4 |
| April | 28°C | 20°C | 34°C (2003) | 11°C (2020) | 120 mm | 12.0 |
| May | 29°C | 22°C | 34°C (2018) | 16°C (2009) | 236 mm | 15.5 |
| June | 29°C | 24°C | 37°C (2004) | 20°C (2003) | 297 mm | 18.0 |
| July | 30°C | 24°C | 36°C (2003) | 22°C (2001) | 223 mm | 18.6 |
| August | 30°C | 24°C | 37°C (2009) | 22°C (2008) | 313 mm | 21.7 |
| September | 30°C | 24°C | 35°C (2014) | 19°C (2012) | 159 mm | 15.0 |
| October | 29°C | 21°C | 35°C (2017) | 13°C (1994) | 68 mm | 6.2 |
| November | 27°C | 19°C | 33°C (2013) | 11°C (2008) | 39 mm | 6.0 |
| December | 24°C | 15°C | 30°C (2002) | 6°C (1999) | 40 mm | 6.2 |
| Year | 27°C | 20°C | 1694 mm | 146 |
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.
1694 mm in a normal year, most in August.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Chang-hua.
The muggiest month is July, when 100 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 | 12°C | 74% | 60% | 32% | 7% | 0% | 0% | 0% |
| February | 13°C | 74% | 49% | 40% | 11% | 1% | 0% | 0% |
| March | 15°C | 74% | 22% | 32% | 39% | 7% | 0% | 0% |
| April | 18°C | 74% | 5% | 12% | 36% | 45% | 4% | 0% |
| May | 21°C | 78% | 0% | 1% | 7% | 44% | 46% | 1% |
| June | 23°C | 84% | 0% | 0% | 0% | 5% | 71% | 23% |
| July | 24°C | 84% | 0% | 0% | 0% | 0% | 54% | 46% |
| August | 24°C | 85% | 0% | 0% | 0% | 0% | 46% | 53% |
| September | 23°C | 82% | 0% | 0% | 1% | 15% | 66% | 18% |
| October | 20°C | 75% | 1% | 7% | 21% | 39% | 31% | 1% |
| November | 17°C | 73% | 8% | 22% | 39% | 29% | 2% | 0% |
| December | 13°C | 73% | 39% | 38% | 19% | 4% | 0% | 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 October, with the sky 61 percent covered on average; the cloudiest is April, at 80 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 June, averaging 12.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 13 h 38 min of daylight; the shortest is Dec 14, with 10 h 39 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 Chang-hua 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.