Heshan, Hunan Weather by Month and Climate Averages

How much rain does Heshan get?

Heshan gets 1501 mm of precipitation in an average year, spread over about 148 days with measurable rain. That is more rainy days than 88% of China.

June is the wettest month, with 236 mm. December is the driest, with 55 mm. March has the most rainy days, about 18.

The longest dry spell in the last five years lasted 24 days, to July 26, 2024.

Heshan weather by month

Heshan weather in January

In January, Heshan averages a high of 9°C and a low of 3°C. It gets 76 mm of precipitation over about 13 rainy days. The sun is out about 38% of daylight hours. The January record high is 27°C (2014) and the record low is -7°C (2016).

Heshan weather in February

In February, Heshan averages a high of 12°C and a low of 5°C. It gets 87 mm of precipitation over about 13 rainy days. The sun is out about 27% of daylight hours. The February record high is 31°C (2010) and the record low is -8°C (1990).

Heshan weather in March

In March, Heshan averages a high of 16°C and a low of 9°C. It gets 156 mm of precipitation over about 18 rainy days. The sun is out about 28% of daylight hours. The March record high is 33°C (2025) and the record low is -1°C (2003).

Heshan weather in April

In April, Heshan averages a high of 22°C and a low of 14°C. It gets 178 mm of precipitation over about 16 rainy days. The sun is out about 28% of daylight hours. The April record high is 36°C (2004) and the record low is 2°C (1996). April is one of the most comfortable months to visit.

Heshan weather in May

In May, Heshan averages a high of 27°C and a low of 19°C. It gets 208 mm of precipitation over about 16 rainy days. The sun is out about 27% of daylight hours. The May record high is 36°C (1991) and the record low is 11°C (1991).

Heshan weather in June

In June, Heshan averages a high of 30°C and a low of 23°C. It gets 236 mm of precipitation over about 14 rainy days. The sun is out about 17% of daylight hours. The June record high is 38°C (2004) and the record low is 13°C (1987).

Heshan weather in July

In July, Heshan averages a high of 33°C and a low of 26°C. It gets 166 mm of precipitation over about 10 rainy days. The sun is out about 24% of daylight hours. The July record high is 41°C (2024) and the record low is 19°C (1989).

Heshan weather in August

In August, Heshan averages a high of 33°C and a low of 25°C. It gets 112 mm of precipitation over about 10 rainy days. The sun is out about 42% of daylight hours. The August record high is 41°C (2003) and the record low is 17°C (2009).

Heshan weather in September

In September, Heshan averages a high of 28°C and a low of 21°C. It gets 87 mm of precipitation over about 9 rainy days. The sun is out about 44% of daylight hours. The September record high is 39°C (2024) and the record low is 12°C (1992).

Heshan weather in October

In October, Heshan averages a high of 23°C and a low of 16°C. It gets 61 mm of precipitation over about 9 rainy days. The sun is out about 39% of daylight hours. The October record high is 38°C (2022) and the record low is 5°C (1991). October is one of the most comfortable months to visit.

Heshan weather in November

In November, Heshan averages a high of 18°C and a low of 10°C. It gets 79 mm of precipitation over about 10 rainy days. The sun is out about 46% of daylight hours. The November record high is 33°C (2022) and the record low is -2°C (1987). November is one of the most comfortable months to visit.

Heshan weather in December

In December, Heshan averages a high of 12°C and a low of 4°C. It gets 55 mm of precipitation over about 10 rainy days. The sun is out about 50% of daylight hours. The December record high is 24°C (2024) and the record low is -11°C (1991).

Sunshine, humidity and wind in Heshan

December is the sunniest month in Heshan, with sunshine about 50% of daylight hours. June is the cloudiest, at 17%. Over the year the sun shines about 34% of daylight hours. Heshan is cloudier than 80% of China.

Humidity peaks in June at 81% and is lowest in December at 64%.

Heshan has about 61 days a year above 32°C. Heshan is hotter than 83% of China.

First and last freeze in Heshan

The first fall freeze in Heshan typically comes around December 16, and the last spring freeze around February 9. That leaves a frost-free growing season of about 310 days.

Heshan weather records

The hottest temperature on record at the Heshan station is 41°C, on August 2, 2003. The coldest is -11°C, on December 29, 1991.

The wettest day on record brought 249 mm of rain, on June 7, 1997.

48 all-time records have been set at the station since 1987.

The annual mean temperature has changed by +0.4°C per decade since 1987.

The best time to visit Heshan

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 11°C and lows near 4°C.

Spring (March–May) is warm, with average highs around 22°C and lows near 14°C.

Summer (June–August) is hot, with average highs around 32°C and lows near 25°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 23°C and lows near 15°C.

Heshan climate questions

How much rain does Heshan get?

Heshan gets 1501 mm of precipitation in an average year, over about 148 rainy days.

What is the wettest month in Heshan?

June is the wettest month in Heshan, with 236 mm. December is the driest, with 55 mm.

How many rainy days does Heshan have a year?

Heshan has about 148 days with measurable rain in an average year. March has the most, about 18.

What is the hottest month in Heshan?

July is the warmest month in Heshan, with an average high of 33°C.

What is the coldest month in Heshan?

January is the coldest month in Heshan, with an average low of 3°C.

What is the record high temperature in Heshan?

The record high at the Heshan station is 41°C, set on August 2, 2003. The record low is -11°C, on December 29, 1991.

What is the sunniest month in Heshan?

December is the sunniest month in Heshan, with sunshine about 50% of daylight hours. June is the cloudiest.

When is the first frost in Heshan?

The first fall freeze in Heshan typically comes around December 16. The last spring freeze is around February 9.

What is the best time to visit Heshan?

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