Kaohsiung weather in September
In September, Kaohsiung has an average high of 30 °C87 °F and an average low of 26 °C80 °F, with about 240 mm9.5 in of precipitation. It is the 4th warmest month of the year and ranks 4th for precipitation.
How September compares with other months
Compared with August, September is about the same temperature and drier by 196 mm7.7 in. Compared with October, September is 1.3 °C2.3 °F warmer on average and wetter by 164 mm6.5 in. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 81% and the average cloud amount 64%.
Is September a good time to visit Kaohsiung?
September is not among the most comfortable months by our comfort score: it is hot (average high 30 °C87 °F), it is fairly wet (240 mm9.5 in) and it is humid (81%). The most comfortable months in Kaohsiung are November–April.
What to wear in September
For Kaohsiung in September, pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Kaohsiung | 3087 | 2680 | 2409.5 |
| Tainan | 2984 | 2780 | 2429.5 |
| Yongkang | 2984 | 2780 | 2429.5 |
| Taitung | 3087 | 2680 | 26110 |
| Chiayi City | 3289 | 2576 | 2289.0 |
| Yuanlin | 3188 | 2577 | 1877.4 |
| Taichung | 3187 | 2476 | 1877.4 |
| Toufen | 3085 | 2679 | 1736.8 |
| Hsinchu | 2985 | 2577 | 2439.6 |
Nearby places that are more than 1 °C1.8 °F cooler: Hsinchu.
Other months in Kaohsiung
- January25 °C76 °F / 19 °C66 °F
- February26 °C79 °F / 20 °C67 °F
- March28 °C82 °F / 21 °C70 °F
- April30 °C86 °F / 23 °C74 °F
- May31 °C88 °F / 26 °C78 °F
- June31 °C87 °F / 27 °C80 °F
- July31 °C88 °F / 27 °C81 °F
- August31 °C87 °F / 27 °C81 °F
- September30 °C87 °F / 26 °C80 °F
- October30 °C85 °F / 25 °C76 °F
- November28 °C83 °F / 23 °C73 °F
- December26 °C78 °F / 20 °C68 °F
Frequently asked questions
How warm is Kaohsiung in September?
In September the average high in Kaohsiung is 30 °C (87 °F) and the average low is 26 °C (80 °F).
Does it rain a lot in Kaohsiung in September?
On average about 240 mm (9.5 in) of precipitation falls in September; it ranks 4th of the 12 months.
Is September the warmest month in Kaohsiung?
No. The warmest month in Kaohsiung is May, with an average high of 31 °C (88 °F). The coldest month is January, with an average low of 19 °C (66 °F).
How long is the day in Kaohsiung in September?
In the middle of September the day in Kaohsiung lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Kaohsiung in September?
The average relative humidity in September is about 81%. Combined with warm days, it can feel muggy.
How cloudy is Kaohsiung in September?
On average about 64% 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 208 m, while Kaohsiung lies at about 9 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.