Meteo Suzhou in maggio

May in Shanghai is warm and, by late in the month, humid - 18 to 28C on the forum's reckoning - and it is also the tail of the spring rains, which run from about mid-April to the end of May and can mean two or three straight weeks of grey drizzle. Our row carries 127.4mm over 11.1 days. The date that matters more than the weather is Labour Day: the holiday is 1 May but the break runs roughly the 1st to the 5th, most people take a long weekend from 30 April, and the crowds build from the Friday - everywhere twice as busy. Mid-April is the cooler alternative. The record: 25.7C days that feel like 28C, 16.8C nights and AQI 98.

Forum posters describe April in Suzhou as often cloudy or rainy, with typical temperatures between 13-20C, though posters are consistent that there's no distinct 'rain season' here the way some regions have - rain is a regular but not overwhelming feature of the month. Posters consistently rate mid-to-late April through May as just about perfect weather-wise, with April/May and September/October generally named as the most comfortable overall stretches to visit the wider Jiangsu region. Posters flag April and May as peak tourism season, meaning real crowds and higher prices alongside the good weather. Posters describe early April specifically as bringing magnolia and some cherry blossoms into bloom. Posters generally rate April as a good, if increasingly crowded, time to visit Suzhou, occasional rain a minor trade-off for the pleasant temperatures and spring blooms.

Forum posters call October a clear step up from the still-hot early September stretch in the Shanghai/Suzhou area, with visitors reporting ideal sunny conditions, though some rain is still possible depending on the week. One timing note worth knowing: mid-October is generally considered too early for peak autumn foliage - the best color typically runs November into early December - so October garden visits lean more on the classical Suzhou gardens' architecture, rockwork and water features than on fall leaves. The bigger practical concern posters raise for October specifically isn't weather at all but crowds, since it's one of the most popular domestic travel months in China.