Nestled on the eastern coast of China, Shanghai enjoys a humid subtropical climate (Cfa) with diverse weather conditions throughout the year.
The hottest month of the year in Shanghai is July, with an average high of 89°F and a low of 78°F.
This vibrant metropolis experiences steamy summers and chilly winters, making it essential for visitors and residents alike to plan accordingly.
During the winter months, particularly from December to February, the city can get quite cold.
January is the coldest month, recording average high temperatures of 46°F and lows of 35°F.
Historical data shows that temperatures can even drop to as low as 14°F, demonstrating the need for warm clothing during this period.
In contrast, the summer season, especially July and August, can be rather humid and hot.
Rainfall is notable during these months, offering a reprieve from the heat but also contributing to the region’s overall humidity.
For those planning to visit, understanding these seasonal patterns can enhance the experience and ensure preparedness for Shanghai’s varied weather conditions.
Average Temperature in Shanghai, China
Shanghai experiences a wide range of temperatures throughout the year.
The hottest month is July, where the maximum temperature reaches an average high of 89°F and a low of 78°F.
The coldest month is January, with an average high temperature of 46°F and a low of 35°F.
Winter, from December to February, is often quite cold, sometimes even seeing snowfall.
Monthly Average Temperatures
| Month | High (°F) | Low (°F) |
|---|---|---|
| January | 46 | 35 |
| February | 49 | 38 |
| March | 56 | 44 |
| April | 67 | 54 |
| May | 76 | 63 |
| June | 83 | 71 |
| July | 89 | 78 |
| August | 88 | 77 |
| September | 81 | 70 |
| October | 72 | 59 |
| November | 61 | 48 |
| December | 51 | 38 |
During the warmest months, particularly in July, the nights remain mild, rarely falling below 78°F.
Conversely, the nights in January can get chilly, dropping to around 35°F.
Shanghai’s yearly temperature is approximately 65°F, which is slightly higher than the average of China.
Occasionally, extreme variations occur. For instance, in January 1977, the temperature dropped to 19.5°F.
Shanghai receives substantial rainfall and has about 111 rainy days annually.
The temperature trends can be visualized through various temperature graphs that show fluctuations over different months.
Average Precipitation in Shanghai, China
Shanghai experiences diverse precipitation patterns throughout the year. The city sees rainfall and occasional snowfall, with variations based on the seasons.
Average Rainfall in Shanghai, China
Shanghai has significant rainfall spread throughout the year. The wettest month is June, followed by July and August, aligning with the rainy season.
Monthly Rainfall:
| Month | Rainfall (inches) |
|---|---|
| January | 2.0 |
| February | 2.5 |
| March | 3.0 |
| April | 3.5 |
| May | 4.5 |
| June | 6.0 |
| July | 5.7 |
| August | 5.0 |
| September | 4.7 |
| October | 3.7 |
| November | 2.4 |
| December | 2.1 |
The rainy period from June to September accounts for the majority of the annual rain.
Rainy days peak during these months, often leading to wetter streets and increased humidity.
Average Snow in Shanghai, China
Winter in Shanghai rarely sees heavy snowfall. January is the coldest month, with occasional snow.
Snowfall Insights:
While snow is uncommon, it can occur during cold snaps, especially in January and February.
The average temperature in January can drop to around 35°F, with historical lows reaching as far as 14°F in rare years. Snowfall is generally light and melts quickly.
The snowiest periods are brief and typically uneventful, rarely causing significant disruptions.
Residents might experience one or two snowy days per year, with minimal accumulation. Snow is a rare but striking event, adding a unique charm to the city’s winter landscape.
Average Sun in Shanghai, China
Shanghai experiences a varied amount of sunshine throughout the year. The city’s shortest day and longest day contribute to differences in daylight and sunshine hours.
Average Daily Shortwave Solar Energy in Shanghai, China
The average daily shortwave solar energy can provide insights into the amount of sunlight received throughout the year. Here’s a table showing monthly averages:
| Month | Average Daily Solar Energy (kWh/m²) |
|---|---|
| January | 2.2 |
| February | 3.1 |
| March | 4.2 |
| April | 5.4 |
| May | 5.8 |
| June | 6.1 |
| July | 5.9 |
| August | 5.5 |
| September | 4.6 |
| October | 3.8 |
| November | 2.8 |
| December | 2.1 |
During the summer, especially in June and July, Shanghai experiences the highest solar energy levels.
These months see more hours of sun and longer days.
Conversely, in December and January, the city has shorter days and lower solar energy.
Daylight duration also varies, with the shortest day around December 22 and the longest day around June 21.
This variation affects the total sunshine hours experienced each month.
The range from 2.1 kWh/m² in December to 6.1 kWh/m² in June illustrates the seasonal differences in sunlight and energy.
Average Humidity in Shanghai, China
Shanghai experiences high humidity throughout the year due to its humid subtropical climate. Humidity levels can significantly affect comfort, especially during the summer.
Relative humidity often ranges between 70% and 85%. The sea breeze from the East China Sea contributes to the moisture levels.
Monthly Average Humidity
| Month | Average Relative Humidity |
|---|---|
| January | 78% |
| February | 79% |
| March | 77% |
| April | 75% |
| May | 77% |
| June | 78% |
| July | 80% |
| August | 80% |
| September | 77% |
| October | 74% |
| November | 73% |
| December | 76% |
In summer months, particularly July and August, the combination of high temperatures and humidity can make the weather feel quite oppressive.
The dew point often rises, signaling more moisture in the air.
During winter months, while temperatures drop, the humidity remains relatively high, which can make it feel even colder. January typically sees an average humidity of around 78%.
Spring and autumn are more comfortable. Relative humidity hovers around 75% to 77%. This balance makes these seasons popular for tourists.
Average Wind in Shanghai, China
Shanghai experiences varied wind conditions throughout the year.
The wind speed in this city can vary significantly depending on the season and specific weather patterns.
During the winter months, the wind tends to be stronger.
December through February often sees higher wind speeds averaging around 15 mph.
The spring months (March to May) have more moderate wind speeds.
Winds during this period typically gauge between 10 to 12 mph.
In the summer months (June to August), the wind speed usually decreases.
The average wind speed drops to around 8 to 10 mph.
The fall months (September to November) witness an increase in wind speed again.
Average speeds in this season range from 12 to 15 mph.
Shanghai’s wind direction is generally from the north during the winter.
In summer, the wind often shifts and comes from the southeast.
| Month | Average Wind Speed (mph) |
|---|---|
| January | 15 |
| February | 15 |
| March | 12 |
| April | 10 |
| May | 10 |
| June | 8 |
| July | 8 |
| August | 9 |
| September | 12 |
| October | 13 |
| November | 15 |
| December | 15 |
The windiest month is typically January. During this month, wind gusts can sometimes exceed 20 mph. The wind plays a crucial role in the city’s climate, influencing weather conditions throughout the year.
Average Air Quality in Shanghai, China
Shanghai’s air quality experiences significant variability throughout the year.
The city’s air quality index (AQI) often fluctuates between “Good” and “Moderate” levels, with occasional periods of “Unhealthy” air quality during high pollution events.
Monthly Average AQI Levels
| Month | AQI Level | Description |
|---|---|---|
| January | 150-200 | Unhealthy |
| February | 100-150 | Unhealthy for sensitive groups |
| March | 70-100 | Moderate |
| April | 50-70 | Good |
| May | 40-60 | Good |
| June | 50-70 | Good |
| July | 50-80 | Moderate |
| August | 50-80 | Moderate |
| September | 50-60 | Good |
| October | 60-90 | Moderate |
| November | 90-130 | Unhealthy for sensitive groups |
| December | 120-170 | Unhealthy |
Pollutants:
- PM2.5
- Sulfur Dioxide (SO2)
- Nitrogen Dioxide (NO2)
PM2.5 levels are a major concern in Shanghai. They can exceed safe limits, especially in winter, affecting visibility and health.
Sulfur dioxide and nitrogen dioxide also contribute to air pollution, particularly in industrial areas.
Environmental Factors:
- Temperature: Varies from 40°F in winter to 90°F in summer.
- Humidity: Generally high, contributing to smog and haze.
- Pressure: Low air pressure is common, influencing pollution dispersion.
- UV Index: Moderate to high during the summer.
- Cloud Cover: Impacts the UV index and the visibility of pollutants.
Real-time air quality updates can be found on platforms like IQAir.
Topography of Shanghai, China
Shanghai is located on the east coast of China, bordering the East China Sea. Its coordinates are approximately 31.23° latitude and 121.47° longitude.
The city lies on flat terrain, which is typical of coastal regions.
The average elevation in Shanghai is about 16 feet.
It ranges from a minimum of -16 feet below sea level to a maximum of 138 feet above sea level in some areas.
Elevation Variations
| Measurement | Elevation |
|---|---|
| Average Elevation | 16 ft |
| Minimum Elevation | -16 ft |
| Maximum Elevation | 138 ft |
The proximity to the East China Sea affects its weather and geography. The sea water temperature varies throughout the year, influencing the local climate.
Water Temperature by Month
| Month | Water Temperature (°F) |
|---|---|
| January | 50 |
| February | 50 |
| March | 54 |
| April | 61 |
| May | 68 |
| June | 75 |
| July | 82 |
| August | 84 |
| September | 79 |
| October | 72 |
| November | 61 |
| December | 54 |
Shanghai’s terrain is relatively flat but has minor variations.
The western suburbs have small hills, whereas the downtown area is closer to average sea level. This topographical setting makes it prone to seasonal flooding.
The city’s topography is crucial for urban planning and infrastructure development.
Its low elevation and proximity to the sea necessitate effective water management and flood prevention measures.
Extreme Weather Events that Occur in Shanghai, China
Shanghai experiences a variety of extreme weather events throughout the year. These events include intense heat waves, heavy rains, and typhoons.
Each weather event impacts the city in different ways.
Heat Waves
Heat waves are quite common during the summer months in Shanghai.
Temperatures can soar to over 104°F (40°C), causing discomfort and potential health risks for residents.
For instance, there have been recent reports of temperatures reaching as high as 107°F in the city.
Heavy Rains and Flooding
Heavy rains, particularly during the monsoon season, can lead to severe flooding.
The city often experiences torrential rainstorms that cause landslides and disrupt daily life.
Over the past two months, landslides and flooding have claimed over 150 lives in China, with Shanghai being one of the affected areas.
Typhoons
During the typhoon season, usually from June to September, Shanghai can face strong winds and heavy rain.
These typhoons can cause significant damage to infrastructure and agriculture. The city is well-prepared for such events, but the impact can still be substantial.
Weather by Month
Below is a table showing typical weather conditions by month:
| Month | Average High (°F) | Average Low (°F) | Precipitation (in) |
|---|---|---|---|
| January | 47 | 37 | 2.5 |
| April | 68 | 52 | 3.2 |
| July | 90 | 78 | 5.9 |
| October | 73 | 60 | 2.9 |
Dry Season
Shanghai also has a dry season, which typically occurs in the winter months.
During this period, the city experiences lower humidity and less rainfall.
The dry season offers a break from the intense humidity and wet conditions seen during the summer.
Best Time of the Year to Visit Shanghai, China
Shanghai offers distinct seasons, each with unique experiences for visitors.
From comfortable spring days to intense summer heat, pleasant autumn weather, and chilly winters, planning based on the climate can enhance your trip.
What is Shanghai, China Like in Spring
Spring in Shanghai, between March and May, is marked by mild and pleasant weather.
Temperatures during this season typically range from 50°F to 72°F.
This period is fantastic for outdoor sightseeing as the city’s parks and gardens bloom with flowers.
The humidity is low, making it comfortable to walk around and explore historic districts, such as The Bund and Yu Garden.
April and May are especially popular months for tourists. There is occasional rainfall, but it’s generally light.
For those interested in cultural events, the Shanghai International Music Festival takes place during spring.
What is Shanghai, China Like in Summer
Summer in Shanghai runs from June to August.
The season is hot and humid, frequently reaching highs of 90°F.
Rainfall is more common during these months, and typhoons can sometimes occur, bringing heavy rain and strong winds.
Visiting during this time requires preparation for the heat, with plenty of water and lightweight clothing.
Air-conditioned indoor attractions like museums and shopping malls provide relief from the summer weather.
Despite the heat, summer hosts events like the Shanghai International Film Festival, offering special cultural experiences.
| Month | Average High (F) | Average Low (F) | Rainfall (Inches) |
|---|---|---|---|
| June | 82 | 69 | 6.5 |
| July | 90 | 77 | 5.7 |
| August | 88 | 76 | 6.1 |
What is Shanghai, China Like in Fall
Fall in Shanghai, from September to November, is widely considered the best time to visit.
Temperatures are comfortable, ranging from 60°F to 77°F.
The humidity drops, making it easier to enjoy outdoor activities, such as strolling along the Huangpu River or visiting the famous Nanjing Road.
September might still have some remnants of summer’s heat, but by October and November, the weather is almost perfect for sightseeing.
The Shanghai Tourism Festival in September adds extra excitement to early fall visits.
What is Shanghai, China Like in Winter
Winter in Shanghai, from December to February, is cold and can get windy, with temperatures ranging from 36°F to 50°F. Snowfall is rare, but occasional light snow can create picturesque scenes of the city.
The air is dry, meaning lower humidity compared to summer.
Visitors should dress warmly, especially when exploring outdoor attractions like the Oriental Pearl Tower.
Despite the chill, winter offers a quieter and less crowded experience.
Events like the Chinese New Year Festival in January or February provide rich cultural experiences for those visiting during this period.
Indoor attractions, warm restaurants, and festive lights enhance the wintertime charm.
| Month | Average High (F) | Average Low (F) | Rainfall (Inches) |
|---|---|---|---|
| December | 50 | 37 | 1.9 |
| January | 46 | 36 | 1.8 |
| February | 50 | 37 | 2.1 |