Shanghai Weather by Month: Your Seasonal Guide

Understand Shanghai’s climate patterns for optimal travel planning

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July 15, 2025

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Understanding Shanghai’s Climate: A Seasonal Overview

Shanghai, a bustling metropolis on China’s eastern coast, experiences a humid subtropical climate characterized by four distinct seasons. Each season brings its own unique weather patterns, influencing everything from daily life to travel plans. Understanding these monthly variations in temperature, rainfall, and humidity is key to making the most of your time in this dynamic city.

Average Monthly Temperatures: From Chilly Winters to Sizzling Summers

Shanghai’s temperatures fluctuate significantly throughout the year, ranging from cold, damp winters to hot, humid summers. The transition seasons of spring and autumn offer the most pleasant weather.

Month Avg. High (°C) Avg. Low (°C) Avg. High (°F) Avg. Low (°F)
January 9 3 47 37
February 10 4 50 39
March 14 8 57 46
April 20 13 68 55
May 25 18 77 64
June 29 22 84 72
July 33 26 91 79
August 32 26 90 79
September 28 22 82 72
October 23 16 73 61
November 17 10 63 50
December 11 5 52 41

Data Source: Various climate data providers [1, 2, 3, 4]

Rainfall and Humidity: Preparing for Shanghai’s Wet Seasons

Rainfall in Shanghai is significant, especially during the summer months. Coupled with high humidity, this can make certain periods feel particularly muggy. Understanding the precipitation patterns is crucial for packing appropriately and planning outdoor activities.

Average Monthly Rainfall (mm / inches)

Month Avg. Rainfall (mm) Avg. Rainfall (inches)
January 50 2.0
February 60 2.4
March 80 3.1
April 90 3.5
May 110 4.3
June 180 7.1
July 150 5.9
August 160 6.3
September 100 3.9
October 60 2.4
November 50 2.0
December 40 1.6

Average Monthly Humidity (%)

Month Avg. Humidity (%)
January 77
February 77
March 78
April 78
May 79
June 84
July 82
August 82
September 80
October 78
November 77
December 71

Data Source: Various climate data providers [1, 2, 3, 4]

Why This Matters: Optimizing Your Shanghai Experience

  • **Packing Essentials:** Knowing the weather helps you pack appropriate clothing and gear (e.g., umbrellas for summer).
  • **Activity Planning:** Plan indoor activities during hot, humid summers or cold, damp winters, and outdoor excursions during pleasant spring and autumn.
  • **Travel Seasons:** Identify the best times to visit based on your comfort preferences and desired activities.
  • **Health Considerations:** Be aware of humidity levels, especially if sensitive to heat or prone to respiratory issues.
  • **Local Events:** Some festivals and events are seasonal, aligning with specific weather conditions.

💡 Pro Tip: Best Times to Visit Shanghai

The most favorable times to visit Shanghai are during **Spring (March-May)** and **Autumn (September-November)**. These seasons offer mild temperatures, lower humidity, and generally clear skies, making them ideal for sightseeing, exploring the city, and enjoying outdoor attractions without the extremes of summer heat or winter chill.

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