Jiangsu Province is experiencing rising temperatures and increasing humidity as the region approaches the annual Meiyu (plum rain) season, according to meteorological data released on June 14, 2026. While the province sees a mix of clouds and scattered thunderstorms over the next three days, forecasters note that the primary rain belt is shifting toward the Yangtze River region, signaling a likely transition into the rainy season.
Current Weather Conditions in Jiangsu
As of June 14, weather patterns across Jiangsu showed a distinct divide. The central and eastern parts of the province experienced precipitation, with localized moderate rainfall reported in Yancheng and Huai’an. Afternoon temperatures varied significantly across the region, ranging from 20 to 25℃ in the central and eastern areas, while other parts of the province reached between 26 and 32℃. Residents have been advised to take precautions as the region remains in a period of high-frequency strong convective weather.
The official start of the Meiyu season is determined by a strict set of criteria: a region must experience six to seven rainy days within a two-week period, meet specific daily rainfall totals, maintain an average temperature of at least 22℃, and the subtropical high ridge line must cross the 18th parallel north.
Forecast for the Next Three Days
The province is expected to remain mostly cloudy with scattered thunderstorms through June 17, as temperatures trend upward. By June 17, maximum temperatures across the province are projected to reach approximately 33℃. The heat is expected to intensify by June 19, with temperatures in Xuzhou, Suqian, and Huai’an potentially hitting 34 to 35℃.
For the period of June 15 to 17, the forecast indicates:
- June 15–16: Southeastern regions will see occasional light rain, while the rest of the province remains cloudy. Temperatures will peak around 33℃ in the northwest and 31℃ in the central-western Huaihe River area.
- June 16–17: The province will stay cloudy. By June 17, Southern Jiangsu may experience scattered showers or thunderstorms, while northwestern areas could see temperatures climb to 34–35℃.
The transition into the Meiyu season is a complex atmospheric shift. While neighboring Zhejiang has already entered the season, Jiangsu’s timeline depends on the northward movement of the main rain belt. The current trend of rising temperatures and high humidity is a typical precursor to this shift, requiring residents to monitor official updates closely as the multi-factor criteria for the season’s start are met.
Frequently Asked Questions
What factors determine the start of the Meiyu season?
The season is officially declared when a region experiences six to seven rainy days over two consecutive weeks, meets specific rainfall averages, maintains an average temperature of 22℃ or higher, and the subtropical high ridge line moves north of 18 degrees latitude.
How hot will it get in Jiangsu over the coming days?
Temperatures are on a steady rise. Most of the province will see highs of 33℃ by June 17, with some areas like Xuzhou, Suqian, and Huai’an expected to reach 34 to 35℃ by June 19.
What is the weather outlook for the immediate future?
The province will generally be cloudy with scattered thunderstorms. Southeastern areas should expect occasional light rain, while other regions will experience alternating cloudy conditions and localized precipitation.
Are you prepared for the shift in humidity and the potential arrival of the rainy season in your area?