When Is Shanghai's Typhoon Season? How Many Typhoons Hit Each Year?
TyphoonSays·防御问答 · Regional Typhoons · 更新 at 2026-10-18
Shanghai's Typhoon Season: Core Period and Climate Patterns
Shanghai is located in the East Asian monsoon region and is significantly affected by tropical cyclones in the northwestern Pacific. According to climate statistics, Shanghai's typhoon impact period is concentrated mainly in June through October each year. July, August, and September are the main flood season for typhoon landfalls or significant impacts, with these three months accounting for the vast majority of the year's typhoon-related wind and rain events. This pattern is closely associated with the northward expansion of the subtropical high, rising sea-surface temperatures, and atmospheric circulation patterns.
Although the outer cloud bands of typhoons occasionally affect Shanghai in late May or early November, bringing showers or strong winds, the probability is low and the intensity is usually limited, with serious disasters being extremely rare. It is important to emphasize that climatic averages do not represent actual conditions in any given year. Due to global climate change and anomalous circulation between years, such as El Niño or La Niña events, the number of typhoons generated, their tracks, and their landfall locations vary considerably. Residents should therefore not rigidly memorize a fixed start and end date, but should continue to monitor weather information throughout the summer and autumn.
Impact Frequency: Not Every Year Brings a Direct Hit
Many residents wonder how many typhoons occur in a year. Data show that, on average, about one to three typhoons significantly affect Shanghai each year. Here, "impact" is broadly defined and includes a typhoon center making landfall directly in Shanghai, a typhoon making landfall along the coasts of Zhejiang or Jiangsu before moving northward and affecting Shanghai, or a typhoon passing close enough for Shanghai to come within its 7-force wind circle.
In fact, direct landfalls of typhoon centers in Shanghai are relatively uncommon. In most years, Shanghai experiences the peripheral effects of typhoons. Even so, a typhoon's outer spiral rainbands and strong winds can still pose risks such as urban waterlogging and fallen trees. Interannual variations are substantial: some years may see no direct typhoon impact throughout the season, resulting in a "blank typhoon season," while others may experience the combined effects of multiple successive typhoons. Risk assessment therefore cannot focus solely on landfall locations; it is also essential to follow the wind and rain forecasts issued by meteorological authorities and the areas covered by typhoon wind circles.
Scientific Preparedness: Warning Responses and Household Preparations
China's typhoon warning signals are divided into four levels—blue, yellow, orange, and red—with red being the highest level. A high-level warning means that the impacts from wind and rain are imminent or already occurring.
- Policy compliance: For public measures such as school closures, work suspensions, and transport disruptions, strictly follow the latest notices issued by local governments and emergency management departments. Response standards may vary by area and industry, so do not act on rumors from unofficial channels.
- Home inspections: Before a typhoon arrives, be sure to remove flowerpots and other objects from balconies and windowsills to prevent falling objects from causing harm. Check that doors and windows are properly sealed, and, if necessary, apply tape to glass windows in a crisscross pattern for reinforcement.
- Emergency supplies: Households are advised to keep emergency kits stocked with flashlights, spare batteries, power banks, drinking water, nonperishable food, and common medicines to cope with possible short-term interruptions to water and electricity.
- Safety precautions: Minimize outdoor travel during periods of impact and stay away from billboards, tower cranes, temporary barriers, and low-lying roads prone to flooding. Residents of dilapidated buildings, underground spaces, or coastal areas should cooperate with community arrangements and evacuate to safe locations promptly.
Typhoon tracks are complex and change rapidly, and numerical forecasts are continually updated as they evolve. For the most authoritative and real-time information on typhoon locations, wind-circle radii, and assessments of wind and rain impacts, real-time typhoon tracks can be checked on TyphoonSays (taifengshuo.com).
This article is original educational content from TyphoonSays. Please refer to the latest official announcements from local governments for policy standards.