Kaiyuan, Yunnan Weather by Month and Climate Averages

How much rain does Kaiyuan get?

Kaiyuan gets 833 mm of precipitation in an average year, spread over about 117 days with measurable rain. That is more rainy days than 65% of China.

July is the wettest month, with 166 mm. February is the driest, with 16 mm. July has the most rainy days, about 18.

The longest dry spell in the last five years lasted 34 days, to February 2, 2023.

Kaiyuan weather by month

Kaiyuan weather in January

In January, Kaiyuan averages a high of 19°C and a low of 9°C. It gets 26 mm of precipitation over about 5 rainy days. The sun is out about 49% of daylight hours. The January record high is 29°C (2005) and the record low is -4°C (1974). January is one of the most comfortable months to visit.

Kaiyuan weather in February

In February, Kaiyuan averages a high of 22°C and a low of 11°C. It gets 16 mm of precipitation over about 4 rainy days. The sun is out about 52% of daylight hours. The February record high is 31°C (2013) and the record low is -1°C (2004). February is one of the most comfortable months to visit.

Kaiyuan weather in March

In March, Kaiyuan averages a high of 25°C and a low of 14°C. It gets 24 mm of precipitation over about 5 rainy days. The sun is out about 60% of daylight hours. The March record high is 33°C (1975) and the record low is -2°C (1986). March is one of the most comfortable months to visit.

Kaiyuan weather in April

In April, Kaiyuan averages a high of 28°C and a low of 17°C. It gets 52 mm of precipitation over about 9 rainy days. The sun is out about 59% of daylight hours. The April record high is 36°C (1983) and the record low is 4°C (1970).

Kaiyuan weather in May

In May, Kaiyuan averages a high of 28°C and a low of 19°C. It gets 94 mm of precipitation over about 12 rainy days. The sun is out about 42% of daylight hours. The May record high is 37°C (2023) and the record low is 10°C (1990).

Kaiyuan weather in June

In June, Kaiyuan averages a high of 28°C and a low of 21°C. It gets 112 mm of precipitation over about 15 rainy days. The sun is out about 13% of daylight hours. The June record high is 37°C (2023) and the record low is 12°C (1970).

Kaiyuan weather in July

In July, Kaiyuan averages a high of 28°C and a low of 21°C. It gets 166 mm of precipitation over about 18 rainy days. The sun is out about 19% of daylight hours. The July record high is 34°C (2024) and the record low is 13°C (1989).

Kaiyuan weather in August

In August, Kaiyuan averages a high of 28°C and a low of 20°C. It gets 142 mm of precipitation over about 18 rainy days. The sun is out about 19% of daylight hours. The August record high is 34°C (2020) and the record low is 12°C (1992).

Kaiyuan weather in September

In September, Kaiyuan averages a high of 27°C and a low of 18°C. It gets 87 mm of precipitation over about 13 rainy days. The sun is out about 27% of daylight hours. The September record high is 33°C (1992) and the record low is 8°C (1977).

Kaiyuan weather in October

In October, Kaiyuan averages a high of 24°C and a low of 16°C. It gets 57 mm of precipitation over about 9 rainy days. The sun is out about 32% of daylight hours. The October record high is 32°C (2023) and the record low is 3°C (1978). October is one of the most comfortable months to visit.

Kaiyuan weather in November

In November, Kaiyuan averages a high of 22°C and a low of 12°C. It gets 36 mm of precipitation over about 5 rainy days. The sun is out about 48% of daylight hours. The November record high is 29°C (2009) and the record low is 0°C (1992). November is one of the most comfortable months to visit.

Kaiyuan weather in December

In December, Kaiyuan averages a high of 19°C and a low of 9°C. It gets 21 mm of precipitation over about 4 rainy days. The sun is out about 36% of daylight hours. The December record high is 27°C (1976) and the record low is -3°C (1975). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Kaiyuan

March is the sunniest month in Kaiyuan, with sunshine about 60% of daylight hours. June is the cloudiest, at 13%. Over the year the sun shines about 38% of daylight hours. Kaiyuan is cloudier than 68% of China.

Humidity peaks in August at 74% and is lowest in April at 49%.

Kaiyuan has about 10 days a year above 32°C. Kaiyuan is cooler than 70% of China.

Kaiyuan weather records

The hottest temperature on record at the Kaiyuan station is 37°C, on May 31, 2023. The coldest is -4°C, on January 3, 1974.

The wettest day on record brought 123 mm of rain, on July 26, 1998.

34 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 Kaiyuan

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

Winter (December–February) is mild, with average highs around 20°C and lows near 10°C.

Spring (March–May) is warm, with average highs around 27°C and lows near 17°C.

Summer (June–August) is hot, with average highs around 28°C and lows near 20°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 24°C and lows near 16°C.

Kaiyuan climate questions

How much rain does Kaiyuan get?

Kaiyuan gets 833 mm of precipitation in an average year, over about 117 rainy days.

What is the wettest month in Kaiyuan?

July is the wettest month in Kaiyuan, with 166 mm. February is the driest, with 16 mm.

How many rainy days does Kaiyuan have a year?

Kaiyuan has about 117 days with measurable rain in an average year. July has the most, about 18.

What is the hottest month in Kaiyuan?

May is the warmest month in Kaiyuan, with an average high of 28°C.

What is the coldest month in Kaiyuan?

January is the coldest month in Kaiyuan, with an average low of 9°C.

What is the record high temperature in Kaiyuan?

The record high at the Kaiyuan station is 37°C, set on May 31, 2023. The record low is -4°C, on January 3, 1974.

What is the sunniest month in Kaiyuan?

March is the sunniest month in Kaiyuan, with sunshine about 60% of daylight hours. June is the cloudiest.

What is the best time to visit Kaiyuan?

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