wind direction(風向)

The temperature increased by the mainland air mass from Siberia and Mongolia, blew the northeast monsoon and brought dry and cold air to Taiwan, causing the temperature to drop in the morning and evening. Rainfall Due to the dry and cold northeast monsoon and less rainfall, the sky clouds in autumn are also less, so "autumn is cool" has become everyone's impression of autumn.

Taiwan's perennial period from October to March of the following year is the prevalence period of the northeast monsoon, especially from November to February of the following year. June to August is the prevalence period of the southwest monsoon, and April to May and September are two monsoon transition periods.