Taichung weather in September
In September, Taichung has an average high of 31 °C87 °F and an average low of 24 °C76 °F, with about 187 mm7.4 in of precipitation. It is the 3rd warmest month of the year and ranks 5th for precipitation.
How September compares with other months
Compared with August, September is 0.7 °C1.2 °F cooler on average and drier by 142 mm5.6 in. Compared with October, September is 1.8 °C3.2 °F warmer on average and wetter by 127 mm5.0 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 82% and the average cloud amount 67%.
Is September a good time to visit Taichung?
September is not among the most comfortable months by our comfort score: it is hot (average high 31 °C87 °F), it is fairly wet (187 mm7.4 in) and it is humid (82%). The most comfortable months in Taichung are October–March.
What to wear in September
For Taichung in September, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Taichung | 3187 | 2476 | 1877.4 |
| Yuanlin | 3188 | 2577 | 1877.4 |
| Toufen | 3085 | 2679 | 1736.8 |
| Chiayi City | 3289 | 2576 | 2289.0 |
| Hsinchu | 2985 | 2577 | 2439.6 |
| Taoyuan | 2984 | 2476 | 2439.6 |
| Taipei | 2985 | 2577 | 2439.6 |
| Yongkang | 2984 | 2780 | 2429.5 |
| Tainan | 2984 | 2780 | 2429.5 |
Nearby places that are more than 1 °C1.8 °F cooler: Taoyuan.
Other months in Taichung
- January23 °C73 °F / 14 °C57 °F
- February24 °C75 °F / 15 °C59 °F
- March26 °C78 °F / 17 °C62 °F
- April28 °C83 °F / 20 °C68 °F
- May30 °C86 °F / 23 °C74 °F
- June30 °C87 °F / 25 °C76 °F
- July31 °C89 °F / 25 °C78 °F
- August31 °C88 °F / 25 °C78 °F
- September31 °C87 °F / 24 °C76 °F
- October30 °C86 °F / 22 °C71 °F
- November28 °C82 °F / 19 °C67 °F
- December24 °C75 °F / 15 °C60 °F
Frequently asked questions
How warm is Taichung in September?
In September the average high in Taichung is 31 °C (87 °F) and the average low is 24 °C (76 °F).
Does it rain a lot in Taichung in September?
On average about 187 mm (7.4 in) of precipitation falls in September; it ranks 5th of the 12 months.
Is September the warmest month in Taichung?
No. The warmest month in Taichung is July, with an average high of 31 °C (89 °F). The coldest month is January, with an average low of 14 °C (57 °F).
How long is the day in Taichung in September?
In the middle of September the day in Taichung lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Taichung in September?
The average relative humidity in September is about 82%. Combined with warm days, it can feel muggy.
How cloudy is Taichung in September?
On average about 67% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 288 m, while Taichung lies at about 91 m. Temperatures on this page were therefore adjusted by +1.3 °C2.3 °F using the standard lapse rate of 6.5 °C per 1,000 m.