Jiangmen, Guangdong Weather by Month and Climate Averages

How much rain does Jiangmen get?

Jiangmen gets 1984 mm of precipitation in an average year, spread over about 139 days with measurable rain. That is more rainy days than 79% of China.

June is the wettest month, with 367 mm. December is the driest, with 35 mm. June has the most rainy days, about 19.

The longest dry spell in the last five years lasted 53 days, to January 24, 2025.

Jiangmen weather by month

Jiangmen weather in January

In January, Jiangmen averages a high of 18°C and a low of 11°C. It gets 54 mm of precipitation over about 7 rainy days. The sun is out about 40% of daylight hours. The January record high is 28°C (2006) and the record low is 1°C (1971). January is one of the most comfortable months to visit.

Jiangmen weather in February

In February, Jiangmen averages a high of 20°C and a low of 12°C. It gets 57 mm of precipitation over about 9 rainy days. The sun is out about 35% of daylight hours. The February record high is 29°C (2021) and the record low is 2°C (1979). February is one of the most comfortable months to visit.

Jiangmen weather in March

In March, Jiangmen averages a high of 22°C and a low of 16°C. It gets 104 mm of precipitation over about 13 rainy days. The sun is out about 26% of daylight hours. The March record high is 32°C (2000) and the record low is 3°C (1986). March is one of the most comfortable months to visit.

Jiangmen weather in April

In April, Jiangmen averages a high of 27°C and a low of 19°C. It gets 199 mm of precipitation over about 15 rainy days. The sun is out about 26% of daylight hours. The April record high is 33°C (2014) and the record low is 8°C (2018). April is one of the most comfortable months to visit.

Jiangmen weather in May

In May, Jiangmen averages a high of 30°C and a low of 23°C. It gets 337 mm of precipitation over about 17 rainy days. The sun is out about 22% of daylight hours. The May record high is 39°C (2023) and the record low is 14°C (2022).

Jiangmen weather in June

In June, Jiangmen averages a high of 32°C and a low of 25°C. It gets 367 mm of precipitation over about 19 rainy days. The sun is out about 11% of daylight hours. The June record high is 39°C (2004) and the record low is 19°C (1987).

Jiangmen weather in July

In July, Jiangmen averages a high of 33°C and a low of 26°C. It gets 243 mm of precipitation over about 16 rainy days. The sun is out about 28% of daylight hours. The July record high is 39°C (2004) and the record low is 22°C (1992).

Jiangmen weather in August

In August, Jiangmen averages a high of 33°C and a low of 26°C. It gets 272 mm of precipitation over about 16 rainy days. The sun is out about 20% of daylight hours. The August record high is 38°C (2004) and the record low is 21°C (1976).

Jiangmen weather in September

In September, Jiangmen averages a high of 32°C and a low of 24°C. It gets 208 mm of precipitation over about 12 rainy days. The sun is out about 30% of daylight hours. The September record high is 37°C (1990) and the record low is 16°C (1997).

Jiangmen weather in October

In October, Jiangmen averages a high of 29°C and a low of 21°C. It gets 69 mm of precipitation over about 5 rainy days. The sun is out about 40% of daylight hours. The October record high is 36°C (2005) and the record low is 9°C (1981).

Jiangmen weather in November

In November, Jiangmen averages a high of 26°C and a low of 17°C. It gets 39 mm of precipitation over about 5 rainy days. The sun is out about 47% of daylight hours. The November record high is 33°C (2003) and the record low is 5°C (1975). November is one of the most comfortable months to visit.

Jiangmen weather in December

In December, Jiangmen averages a high of 21°C and a low of 12°C. It gets 35 mm of precipitation over about 6 rainy days. The sun is out about 49% of daylight hours. The December record high is 30°C (2023) and the record low is 0°C (1999). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Jiangmen

December is the sunniest month in Jiangmen, with sunshine about 49% of daylight hours. June is the cloudiest, at 11%. Over the year the sun shines about 31% of daylight hours. Jiangmen is cloudier than 89% of China.

Humidity peaks in June at 83% and is lowest in December at 62%.

Jiangmen has about 71 days a year above 32°C. Jiangmen is hotter than 89% of China.

Jiangmen weather records

The hottest temperature on record at the Jiangmen station is 39°C, on July 1, 2004. The coldest is 0°C, on December 23, 1999.

The wettest day on record brought 239 mm of rain, on August 23, 1999.

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

The annual mean temperature has changed by +0.3°C per decade since 1970.

The best time to visit Jiangmen

The most comfortable time to visit is typically January to April and November to December, when daytime highs sit near 22°C.

Winter (December–February) is mild, with average highs around 20°C and lows near 12°C.

Spring (March–May) is warm, with average highs around 26°C and lows near 19°C.

Summer (June–August) is hot, with average highs around 33°C and lows near 25°C. It can feel humid.

Autumn (September–November) is hot, with average highs around 29°C and lows near 21°C.

Jiangmen climate questions

How much rain does Jiangmen get?

Jiangmen gets 1984 mm of precipitation in an average year, over about 139 rainy days.

What is the wettest month in Jiangmen?

June is the wettest month in Jiangmen, with 367 mm. December is the driest, with 35 mm.

How many rainy days does Jiangmen have a year?

Jiangmen has about 139 days with measurable rain in an average year. June has the most, about 19.

What is the hottest month in Jiangmen?

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

What is the coldest month in Jiangmen?

January is the coldest month in Jiangmen, with an average low of 11°C.

What is the record high temperature in Jiangmen?

The record high at the Jiangmen station is 39°C, set on July 1, 2004. The record low is 0°C, on December 23, 1999.

What is the sunniest month in Jiangmen?

December is the sunniest month in Jiangmen, with sunshine about 49% of daylight hours. June is the cloudiest.

What is the best time to visit Jiangmen?

The most comfortable time to visit is typically January to April and November to December, when daytime highs sit near 22°C.