September weather forecast
Alishan Township, Taiwan

As summer wanes and autumn begins to set in, September observes a significant drop in rainfall in Alishan Township. An abrupt decrease to 233mm (9.17") from 372mm (14.65") informs of a change in seasons. The weather begins to cool, with daylight hours decreasing by the day, marking autumn's arrival. Despite the reduction in rainfall, the number of rainy days remains steady, indicating the persistence of brief, sporadic showers. Carrying on to October, the weather undergoes further cooling, resulting in chillier nights and less rainfall.

Temperature

September brings an average high-temperature of a still moderately hot 23°C (73.4°F), showing a slight difference from August's 24°C (75.2°F). The average nighttime temperature lowers to a comfortable 16°C (60.8°F) throughout September.

Rainfall

In Alishan Township, during September, the rain falls for 18 days and regularly aggregates up to 233mm (9.17") of precipitation. Throughout the year, there are 215 rainfall days, and 2218mm (87.32") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 05:38 and sunset at 18:14. On the last day of September, sunrise is at 05:48 and sunset at 17:45 CST.

Sunshine

The average sunshine in September is 6h.

UV index

In September, the average daily maximum UV index is 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 11 in September converts into the following recommendations:
Undertake all critical precautions. Protection from sun harm is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.