Chiayi in september: average Weather, Temperature and Climate
Weather in Chiayi in september 2025
The weather in Chiayi in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
85°F
Clear/Sunny
50% of time
20%
20%
10%
Weather at 12pm
88°F
Clear/Sunny
42% of time
25%
20%
12%
Weather at 6pm
85°F
Clear/Sunny
35% of time
28%
20%
17%
Weather at 3am
83°F
44%
28%
18%
9%
Evolution of daily average temperature and precipitation in Chiayi in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Chiayi in september.
The climate of Chiayi in september is tolerable
In september in Chiayi, the climate is wet (with 9.9in of rainfall over 11 days). This is better than the previous month since in august it receives an average of 23.9in of precipitation over 19 days.
The climate is very hot here the month of september. The thermometer averaged maximum of 90°F. In the morning the temperature drops to 85°F. Thus, the mean temperature average on this month of september in Chiayi is 86°F. Note that seasonal normals in contrast with those observed in Chiayi in september with a maximum record of 99°F in 2021 and a minimum record of 76°F in 2013. You You can hope to have 86°F or more throughout the month.
Day length in Chiayi in september is 12:17. The sun rises at 05:46 and sunset is at 18:03.
With a correct weather, this month is okay (but not good) to go there.
Chiayi: another month?
If you can push back the dates of your trip, we advise you to go in october to Chiayi. more information
September: another location in Taiwan?
If you want to go to Taiwan in september, there are destinations with better weather than Chiayi:
In september, Taipei, Hualien, Hsinchu, Keelung, Taichung and Yangmingshan National Park have good weather.
Seasonal average climate and temperature of Chiayi in september
Check below seasonal norms These datas are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 86°F | ||||
| Highest temperature | 90°F | ||||
| Lowest temperature | 85°F | ||||
| Highest record temperature | 99°F (2021) | ||||
| Lowest record temperature | 76°F (2013) | ||||
| Number of days at +86°F | 27 day(s) (90%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 84°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 86°F | ||||
| Wind | |||||
| Wind speed | 21km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 9.9in | ||||
| Number of days with rainfall | 11 day(s) (37%) | ||||
| Record daily rainfall | 7in (2010) | ||||
| Other climate data | |||||
| Humidity | 73% | ||||
| Visibility | 9.35km | ||||
| Cloud cover | 28% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:46 | ||||
| Time of sunset | 18:03 | ||||
| Length of day | 12:17 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Chiayi in september 2024:
85°F to 94°F
83°F to 92°F
85°F to 94°F
85°F to 94°F
83°F to 92°F
83°F to 92°F
81°F to 86°F
81°F to 88°F
81°F to 90°F
81°F to 92°F
83°F to 92°F
83°F to 92°F
81°F to 90°F
83°F to 92°F
79°F to 90°F
83°F to 92°F
85°F to 94°F
83°F to 92°F
83°F to 92°F
85°F to 90°F
81°F to 90°F
79°F to 83°F
79°F to 92°F
81°F to 92°F
81°F to 90°F
81°F to 90°F
81°F to 90°F
81°F to 92°F
83°F to 90°F
83°F to 92°F
Map: other cities in Taiwan in september
Cities near Chiayi:
| Tainan in september | tolerable weather |
| Alishan National Scenic Area in september | tolerable weather |
| Sun Moon Lake in september | tolerable weather |
| Taichung in september | good weather |
| Kaohsiung in september | tolerable weather |
| Puli (Nantou) in september | tolerable weather |
| Taitung in september | tolerable weather |
| Sanyi in september | good weather |
| Miaoli in september | tolerable weather |
| Hualien in september | good weather |
| Green Island (Lutao) in september | tolerable weather |
| Taroko National Park in september | good weather |
Click over cities on the map for information about the weather in september.
Chiayi
perfect weather
good
tolerable
bad
very bad
Weather data for Chiayi in september:
Weather data for Chiayi for september are derived from an average of the weather forecast since 2009 in Chiayi. There is a margin of error and these forecasts are to be considered as general information only. The weather in Chiayi can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Chiayi.