Winter is coming and residents are warned to brace for seasonal air pollution.
Morning temperatures on Friday dropped to 9.1 degrees Celsius in downtown Xujiahui area and 3.8 degrees in suburban Jinshan District, making it the coldest morning of the autumn.
So far, there is no signs of entering winter (five consecutive days of below 10 degrees). This November, only three days were below 10 degrees, according to Shanghai Meteorological Bureau.
Meanwhile, fog shrouded the city on Saturday night due to weak atmospheric diffusion and it continued yesterday.
At 4:55am on Sunday, the weather authority released the first yellow alert for fog this autumn, the lowest of the three-tier system. In the early morning visibility in most areas dropped to less than 200 meters. The alert was lifted at 9:30am.
Today will be overcast, with some drizzle, and it will turn cloudy in the evening. Temperatures will range between 14 and 18 degrees, forecasters said.
Tomorrow and Wednesday are set to be cloudy and overcast, with temperatures steady. Sunny days will be back on Thursday, but the low is forecast to drop to 10 degrees.
There will be some light PM 2.5 pollution on Tuesday and Wednesday. Residents are warned to brace for pollution from November to January.