What is the average temperature in Sanmen County in September?

The average temperature is about 25 degrees.

Sanmen County has obvious characteristics of subtropical monsoon climate, with long winter and summer, short spring and autumn, distinct four seasons, abundant rainfall and suitable lighting, belonging to the wet sub-region of Leng Xia in winter and wet autumn in south-central Zhejiang. The lowest month in a year is January, and the average temperature is about 5.3℃. The highest temperature is in July, and the average temperature is about 27.9℃. The annual average temperature is 16.6℃ and the frost-free period is 242 days. The seasonal distribution of the whole year is two months in spring and autumn, more than four months in summer and about two months in winter.

Influenced by the maritime monsoon, there is abundant precipitation, with an average annual precipitation of 1 645.3 mm, and the annual precipitation varies greatly, with an annual difference of 1 200 mm. There are two relative rainy seasons and two relative dry seasons throughout the year, which are bimodal. March-June is the first rainy season, July is a relatively light rainy season, August-September is the second rainy season affected by typhoons, and10-February is the second relatively light rainy season. Qiushui Mountain is the rainstorm center in Sanmen County, with the most abundant precipitation, with the average annual precipitation of about 1700 mm ... and the average annual sunshine 1863.7 hours.