Hangzhou, Zhejiang Weather by Month and Climate Averages

How much rain does Hangzhou get?

Hangzhou gets 1531 mm of precipitation in an average year, spread over about 146 days with measurable rain. That is more rainy days than 84% of China.

June is the wettest month, with 262 mm. December is the driest, with 67 mm. June has the most rainy days, about 15.

The longest dry spell in the last five years lasted 18 days, to December 31, 2024.

Hangzhou weather by month

Hangzhou weather in January

In January, Hangzhou averages a high of 8°C and a low of 2°C. It gets 97 mm of precipitation over about 12 rainy days. The sun is out about 43% of daylight hours. The January record high is 24°C (2020) and the record low is -8°C (1977).

Hangzhou weather in February

In February, Hangzhou averages a high of 11°C and a low of 4°C. It gets 93 mm of precipitation over about 12 rainy days. The sun is out about 31% of daylight hours. The February record high is 28°C (2009) and the record low is -6°C (1979).

Hangzhou weather in March

In March, Hangzhou averages a high of 16°C and a low of 7°C. It gets 140 mm of precipitation over about 15 rainy days. The sun is out about 33% of daylight hours. The March record high is 34°C (2025) and the record low is -2°C (2010).

Hangzhou weather in April

In April, Hangzhou averages a high of 22°C and a low of 13°C. It gets 120 mm of precipitation over about 13 rainy days. The sun is out about 30% of daylight hours. The April record high is 35°C (2023) and the record low is 0°C (1972). April is one of the most comfortable months to visit.

Hangzhou weather in May

In May, Hangzhou averages a high of 27°C and a low of 18°C. It gets 130 mm of precipitation over about 13 rainy days. The sun is out about 26% of daylight hours. The May record high is 37°C (2023) and the record low is 9°C (1981).

Hangzhou weather in June

In June, Hangzhou averages a high of 29°C and a low of 22°C. It gets 262 mm of precipitation over about 15 rainy days. The sun is out about 15% of daylight hours. The June record high is 38°C (2025) and the record low is 13°C (1987).

Hangzhou weather in July

In July, Hangzhou averages a high of 34°C and a low of 26°C. It gets 172 mm of precipitation over about 12 rainy days. The sun is out about 19% of daylight hours. The July record high is 41°C (2022) and the record low is 17°C (2015).

Hangzhou weather in August

In August, Hangzhou averages a high of 33°C and a low of 25°C. It gets 178 mm of precipitation over about 13 rainy days. The sun is out about 41% of daylight hours. The August record high is 42°C (2024) and the record low is 18°C (2019).

Hangzhou weather in September

In September, Hangzhou averages a high of 29°C and a low of 21°C. It gets 117 mm of precipitation over about 11 rainy days. The sun is out about 38% of daylight hours. The September record high is 39°C (2024) and the record low is 12°C (1987).

Hangzhou weather in October

In October, Hangzhou averages a high of 24°C and a low of 16°C. It gets 77 mm of precipitation over about 8 rainy days. The sun is out about 41% of daylight hours. The October record high is 38°C (2022) and the record low is 4°C (1970). October is one of the most comfortable months to visit.

Hangzhou weather in November

In November, Hangzhou averages a high of 18°C and a low of 10°C. It gets 78 mm of precipitation over about 11 rainy days. The sun is out about 49% of daylight hours. The November record high is 32°C (2023) and the record low is -2°C (1993). November is one of the most comfortable months to visit.

Hangzhou weather in December

In December, Hangzhou averages a high of 11°C and a low of 4°C. It gets 67 mm of precipitation over about 9 rainy days. The sun is out about 55% of daylight hours. The December record high is 25°C (2023) and the record low is -8°C (1991).

Sunshine, humidity and wind in Hangzhou

December is the sunniest month in Hangzhou, with sunshine about 55% of daylight hours. June is the cloudiest, at 15%. Over the year the sun shines about 35% of daylight hours. Hangzhou is cloudier than 77% of China.

Humidity peaks in June at 80% and is lowest in December at 67%.

Hangzhou has about 52 days a year above 32°C. Hangzhou is hotter than 78% of China.

First and last freeze in Hangzhou

The first fall freeze in Hangzhou typically comes around December 10, and the last spring freeze around February 23. That leaves a frost-free growing season of about 290 days.

Hangzhou weather records

The hottest temperature on record at the Hangzhou station is 42°C, on August 3, 2024. The coldest is -8°C, on January 5, 1977.

The wettest day on record brought 226 mm of rain, on October 7, 2013.

43 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.5°C per decade since 1970.

The best time to visit Hangzhou

The most comfortable time to visit is typically April and October to November, when daytime highs sit near 21°C.

Winter (December–February) is chilly, with average highs around 10°C and lows near 3°C.

Spring (March–May) is warm, with average highs around 21°C and lows near 13°C.

Summer (June–August) is hot, with average highs around 32°C and lows near 24°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 23°C and lows near 16°C.

Hangzhou climate questions

How much rain does Hangzhou get?

Hangzhou gets 1531 mm of precipitation in an average year, over about 146 rainy days.

What is the wettest month in Hangzhou?

June is the wettest month in Hangzhou, with 262 mm. December is the driest, with 67 mm.

How many rainy days does Hangzhou have a year?

Hangzhou has about 146 days with measurable rain in an average year. June has the most, about 15.

What is the hottest month in Hangzhou?

July is the warmest month in Hangzhou, with an average high of 34°C.

What is the coldest month in Hangzhou?

January is the coldest month in Hangzhou, with an average low of 2°C.

What is the record high temperature in Hangzhou?

The record high at the Hangzhou station is 42°C, set on August 3, 2024. The record low is -8°C, on January 5, 1977.

What is the sunniest month in Hangzhou?

December is the sunniest month in Hangzhou, with sunshine about 55% of daylight hours. June is the cloudiest.

When is the first frost in Hangzhou?

The first fall freeze in Hangzhou typically comes around December 10. The last spring freeze is around February 23.

What is the best time to visit Hangzhou?

The most comfortable time to visit is typically April and October to November, when daytime highs sit near 21°C.