How many typhoons affect the weather in Zhoushan in September?

Not easy to predict! This year's No.1 12 typhoon "Nanchuan" was formed at 8: 00 am on September 1 day in the northwest Pacific Ocean west-southwest of Kagoshima, Japan, and then moved to the north-northeast direction. It intensified into a severe tropical storm at 2 pm and a typhoon at 5 pm. It is expected that the strongest typhoon level will reach, and it will land on the coast of Kyushu Island in Japan on the 3rd, which has no impact on China. It seems that Typhoon Agate (13) has not yet been generated, and it is just a tropical cyclone in the Pacific Ocean.