Wuxi, a city on the Yangtze Delta in southern Jiangsu province, sits on the northern shore of Lake Tai between Suzhou and Changzhou at approximately 31.49°N, 120.31°E. It has a humid subtropical climate (Köppen Cfa) under the East Asian monsoon — with hot, humid summers and cool, damp winters — four distinct seasons, a plum-rain season and exposure to late-summer typhoons, essentially the shared climate of the delta.

Summer, from June to August, is hot and humid, with July and August the warmest months — average highs around 32–33°C — and heatwaves that can exceed 38°C, made muggy by the humidity of Lake Tai and the delta. Early summer brings the plum rains, a spell of persistent damp rain in June, and late summer can bring typhoons off the Pacific with heavy rain and strong winds.

Winter, from December to February, is cool to cold and damp, with January the coolest month — average highs around 8°C and lows near 0–1°C, dipping to frost on the coldest nights with occasional light snow. The lake-and-canal setting keeps the air damp, so the raw cold feels sharper than the readings suggest.

Wuxi receives around 1,100–1,200 mm of rain a year, concentrated in the summer with the plum-rain season the wettest spell, while winter is the drier season though damp; Lake Tai keeps humidity high year-round. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Wuxi shares the Yangtze Delta climate of neighbouring Suzhou and Shanghai — hot muggy summers with plum rains and occasional typhoons, and cool damp winters — with its lakeside position on Lake Tai keeping humidity high year-round. The late-summer typhoon season is the main weather hazard, capable of bringing torrential rain to the low-lying delta.

To follow any single measurement in Wuxi more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.