Climate Insights for Nanjing

The climate in Nanjing is temperate. The average annual temperature is 17°C and approximately 1,255 mm of precipitation falls per year. Nanjing receives a notable amount of rainfall throughout the year, including during its driest month. Nanjing is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 0°C. Light snow can occur between January and December.The climate in Nanjing is temperate. The average annual temperature is 63°F and approximately 49.4 in of precipitation falls per year. Nanjing receives a notable amount of rainfall throughout the year, including during its driest month. Nanjing is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 32°F. Light snow can occur between January and December.

Temperatures in Nanjing vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 0°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between November and December, with a 7°C shift in average temperatures.Temperatures in Nanjing vary considerably across the year, with a 59°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 91°F and the mean temperature sits around 84°F. January is the coolest month, with minimum temperatures around 32°F and an average of 39°F. Daily temperature variation is modest, with an average difference of 14°F between highs and lows. The sharpest temperature change occurs between November and December, with a 12°F shift in average temperatures.

Nanjing is a fairly wet location, receiving approximately 1,255 mm of precipitation annually, which averages out to around 105 mm per month. The wettest month is July, averaging 245 mm of rainfall. June and August also tend to see above-average precipitation. The driest month is December, with just 34 mm. That's 211 mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 20cm annually. January is the snowiest month with approximately 10cm.Nanjing is a fairly wet location, receiving approximately 49.4 in of precipitation annually, which averages out to around 4.1 in per month. The wettest month is July, averaging 9.6 in of rainfall. June and August also tend to see above-average precipitation. The driest month is December, with just 1.3 in. That's 8.3 in less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 8in annually. January is the snowiest month with approximately 4in.

Nanjing is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.Nanjing is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is March, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The best time to visit Nanjing is during April and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 81 mm per month. By contrast, August can be uncomfortably hot with highs reaching 33°C, while January is the coldest period with lows dropping to 0°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Nanjing is during April and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 64°F with modest rainfall averaging 3.2 in per month. By contrast, August can be uncomfortably hot with highs reaching 91°F, while January is the coldest period with lows dropping to 32°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Nanjing based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Nanjing based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.