Climate Insights for Hangzhou

Shangcheng District, Zhejiang, China

Hottest
August
35°C peak95°F peak
Coldest
January
3°C low37°F low
Wettest
June
349 mm rain13.7 in rain
Best to Visit
October
Mild temps & low rain

Climate Overview

The climate in Hangzhou is warm and mild. The average annual temperature is 19°C and approximately 1,499 mm of precipitation falls per year. Hangzhou receives a notable amount of rainfall throughout the year, including during its driest month. Hangzhou is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, December, February, when temperatures can drop to 3°C. Light snow can occur between January and December.The climate in Hangzhou is warm and mild. The average annual temperature is 66°F and approximately 59 in of precipitation falls per year. Hangzhou receives a notable amount of rainfall throughout the year, including during its driest month. Hangzhou is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, December, February, when temperatures can drop to 37°F. Light snow can occur between January and December.

Temperature

0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 10°Average: 6°Min: 3°FebMax: 12°Average: 8°Min: 4°MarMax: 18°Average: 13°Min: 9°AprMax: 23°Average: 18°Min: 14°MayMax: 27°Average: 23°Min: 19°JunMax: 29°Average: 26°Min: 23°JulMax: 34°Average: 30°Min: 27°AugMax: 35°Average: 31°Min: 27°SepMax: 30°Average: 26°Min: 23°OctMax: 24°Average: 20°Min: 17°NovMax: 19°Average: 14°Min: 11°DecMax: 12°Average: 8°Min: 4°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 50°FAverage: 43°FMin: 37°FFebMax: 53°FAverage: 46°FMin: 40°FMarMax: 64°FAverage: 56°FMin: 49°FAprMax: 74°FAverage: 65°FMin: 58°FMayMax: 81°FAverage: 73°FMin: 66°FJunMax: 85°FAverage: 79°FMin: 73°FJulMax: 94°FAverage: 87°FMin: 81°FAugMax: 95°FAverage: 87°FMin: 81°FSepMax: 86°FAverage: 79°FMin: 73°FOctMax: 75°FAverage: 68°FMin: 62°FNovMax: 66°FAverage: 58°FMin: 51°FDecMax: 54°FAverage: 46°FMin: 39°F
Max
Average
Min

Temperatures in Hangzhou vary considerably across the year, with a 32°C difference between the coldest and warmest months. August is the hottest month, with daytime highs reaching 35°C and an average of 31°C. January is the coolest month, with minimum temperatures around 3°C and an average of 6°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 Hangzhou vary considerably across the year, with a 58°F difference between the coldest and warmest months. August is the hottest month, with daytime highs reaching 95°F and an average of 87°F. January is the coolest month, with minimum temperatures around 37°F and an average of 43°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.

Precipitation

0mm50mm100mm150mm200mm250mm300mm350mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 78mmSnow: 9mmFebPrecipitation: 71mmSnow: 3mmMarPrecipitation: 108mmSnow: 0mmAprPrecipitation: 118mmSnow: 0mmMayPrecipitation: 177mmSnow: 0mmJunPrecipitation: 349mmSnow: 0mmJulPrecipitation: 167mmSnow: 0mmAugPrecipitation: 117mmSnow: 0mmSepPrecipitation: 141mmSnow: 0mmOctPrecipitation: 63mmSnow: 0mmNovPrecipitation: 63mmSnow: 0mmDecPrecipitation: 48mmSnow: 5mm
Precipitation
Snow
0in2in4in6in8in10in12in14inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 3.1inSnow (in): 4inFebPrecipitation: 2.8inSnow (in): 1inMarPrecipitation: 4.2inSnow (in): 0inAprPrecipitation: 4.6inSnow (in): 0inMayPrecipitation: 6.9inSnow (in): 0inJunPrecipitation: 13.7inSnow (in): 0inJulPrecipitation: 6.6inSnow (in): 0inAugPrecipitation: 4.6inSnow (in): 0inSepPrecipitation: 5.5inSnow (in): 0inOctPrecipitation: 2.5inSnow (in): 0inNovPrecipitation: 2.5inSnow (in): 0inDecPrecipitation: 1.9inSnow (in): 2in
Precipitation
Snow (in)

Hangzhou is a fairly wet location, receiving approximately 1,499 mm of precipitation annually, which averages out to around 125 mm per month. The wettest month is June, averaging 349 mm of rainfall. May and July also tend to see above-average precipitation. The driest month is December, with just 48 mm. That's 301 mm less than June, 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 17cm annually. January is the snowiest month with approximately 9cm.Hangzhou is a fairly wet location, receiving approximately 59 in of precipitation annually, which averages out to around 4.9 in per month. The wettest month is June, averaging 13.7 in of rainfall. May and July also tend to see above-average precipitation. The driest month is December, with just 1.9 in. That's 11.9 in less than June, 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 7in annually. January is the snowiest month with approximately 4in.

Wind

0km/h5km/h10km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 9km/hFebWind Speed: 9km/hMarWind Speed: 9km/hAprWind Speed: 9km/hMayWind Speed: 9km/hJunWind Speed: 8km/hJulWind Speed: 9km/hAugWind Speed: 8km/hSepWind Speed: 9km/hOctWind Speed: 9km/hNovWind Speed: 9km/hDecWind Speed: 9km/h
Wind Speed
0mph5mph10mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 5mphFebWind Speed: 6mphMarWind Speed: 6mphAprWind Speed: 6mphMayWind Speed: 5mphJunWind Speed: 5mphJulWind Speed: 6mphAugWind Speed: 5mphSepWind Speed: 5mphOctWind Speed: 6mphNovWind Speed: 5mphDecWind Speed: 5mph
Wind Speed

Hangzhou is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.Hangzhou is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is October, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5mph, 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.

Best Time to Visit

Jan6°43°F
Feb8°46°F
Mar13°56°F
Apr18°65°F
May23°73°F
Jun26°79°F
Jul30°87°F
Aug31°87°F
Sep26°79°F
Oct20°68°F
Nov14°58°F
Dec8°46°F

The best time to visit Hangzhou is during October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 63 mm per month. By contrast, August can be uncomfortably hot with highs reaching 35°C, while January is the coldest period with lows dropping to 3°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Hangzhou is during October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 2.5 in per month. By contrast, August can be uncomfortably hot with highs reaching 95°F, while January is the coldest period with lows dropping to 37°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Hangzhou 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 Hangzhou 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.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
3 °C37 °F
10 °C50 °F
9 km/h5 mph
78 mm3.1 in
9 cm4 in
Feb
4 °C40 °F
12 °C53 °F
9 km/h6 mph
71 mm2.8 in
3 cm1 in
Mar
9 °C49 °F
18 °C64 °F
9 km/h6 mph
108 mm4.2 in
0 cm0 in
Apr
14 °C58 °F
23 °C74 °F
9 km/h6 mph
118 mm4.6 in
0 cm0 in
May
19 °C66 °F
27 °C81 °F
9 km/h5 mph
177 mm6.9 in
0 cm0 in
Jun
23 °C73 °F
29 °C85 °F
8 km/h5 mph
349 mm13.7 in
0 cm0 in
Jul
27 °C81 °F
34 °C94 °F
9 km/h6 mph
167 mm6.6 in
0 cm0 in
Aug
27 °C81 °F
35 °C95 °F
8 km/h5 mph
117 mm4.6 in
0 cm0 in
Sep
23 °C73 °F
30 °C86 °F
9 km/h5 mph
141 mm5.5 in
0 cm0 in
OctCurrent
17 °C62 °F
24 °C75 °F
9 km/h6 mph
63 mm2.5 in
0 cm0 in
Nov
11 °C51 °F
19 °C66 °F
9 km/h5 mph
63 mm2.5 in
0 cm0 in
Dec
4 °C39 °F
12 °C54 °F
9 km/h5 mph
48 mm1.9 in
5 cm2 in