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

As September unfolds in Alishan Township, the average high-temperature reaches a still moderately hot 23°C (73.4°F), hinting at a slight fluctuation from the previous month. The average temperature drops to a refreshing 16°C (60.8°F) during the night in the month of September.

Rainfall

In Alishan Township, in September, during 18 rainfall days, 233mm (9.17") of precipitation is typically accumulated. Throughout the year, in Alishan Township, 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, in Alishan Township, sunrise is at 05:48 and sunset at 17:45 CST.

Sunshine

The average sunshine in September in Alishan Township 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 exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 11 in September translates into the following instructions:
Put into action all crucial precautions. Defense against sun damage is a must. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.