Humen, Guangdong Weather by Month and Climate Averages

Humen, Guangdong gets 1984 mm of precipitation a year over about 139 rainy days. July is the warmest month (average high 33°C) and January the coldest (average low 11°C).

Humen climate at a glance

Subtropical monsoon climate

Humen, Guangdong has hot summers and mild winters. Daytime highs range from about 19°C in January to 33°C in July. June is usually the wettest month. The most comfortable time to visit is typically January to April and November to December, when daytime highs sit near 22°C.

How much rain does Humen get?

Humen 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.

Humen weather by month

Humen weather in January

In January, Humen 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 45% 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.

Humen weather in February

In February, Humen 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 40% 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.

Humen weather in March

In March, Humen 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 34% 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.

Humen weather in April

In April, Humen 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 33% 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.

Humen weather in May

In May, Humen 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 25% of daylight hours. The May record high is 39°C (2023) and the record low is 14°C (2022).

Humen weather in June

In June, Humen 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 12% of daylight hours. The June record high is 39°C (2004) and the record low is 19°C (1987).

Humen weather in July

In July, Humen 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 30% of daylight hours. The July record high is 39°C (2004) and the record low is 22°C (1992).

Humen weather in August

In August, Humen 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 22% of daylight hours. The August record high is 38°C (2004) and the record low is 21°C (1976).

Humen weather in September

In September, Humen 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 36% of daylight hours. The September record high is 37°C (1990) and the record low is 16°C (1997).

Humen weather in October

In October, Humen 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 44% of daylight hours. The October record high is 36°C (2005) and the record low is 9°C (1981).

Humen weather in November

In November, Humen 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 50% 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.

Humen weather in December

In December, Humen 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 50% 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 Humen

November is the sunniest month in Humen, with sunshine about 50% of daylight hours. June is the cloudiest, at 12%. Over the year the sun shines about 35% of daylight hours. Humen is cloudier than 77% of China.

Humidity peaks in June at 85% and is lowest in December at 65%.

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

Humen weather records

The hottest temperature on record at the Humen 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 Humen

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.

Monthly climate

MonthPrecipRain daysHumiditySunshineSea tempRecord highRecord low
January54 mm768%45%-7°28°
February57 mm976%40%-7°29°
March104 mm1379%34%-6°32°
April199 mm1580%33%-4°33°
May337 mm1784%25%-3°39°14°
June367 mm1985%12%-2°39°19°
July243 mm1682%30%-1°39°22°
August272 mm1684%22%-1°38°21°
September208 mm1281%36%-1°37°16°
October69 mm570%44%-2°36°
November39 mm572%50%-4°33°
December35 mm665%50%-7°30°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Humen climate questions

How much rain does Humen get?

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

What is the wettest month in Humen?

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

How many rainy days does Humen have a year?

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

What is the hottest month in Humen?

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

What is the coldest month in Humen?

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

What is the record high temperature in Humen?

The record high at the Humen 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 Humen?

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

What is the best time to visit Humen?

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

Source: NOAA GHCN-Daily station GUANGZHOU (48 km away).

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Normals from NOAA GHCN-Daily station GUANGZHOU.