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Haikou, Yunnan Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Haikou, Yunnan?
Haikou, Yunnan gets 1011 mm of precipitation a year over about 116 rainy days. May is the warmest month (average high 25°C) and January the coldest (average low 4°C).
Mediterranean climate
Haikou, Yunnan has warm summers and mild winters. Daytime highs range from about 16°C in December to 25°C in June. July is usually the wettest month. The most comfortable time to visit is typically February to June and August to November, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 5° | 17° |
| Spring | Mar–May | 12° | 24° |
| Summer | Jun–Aug | 17° | 25° |
| Autumn | Sep–Nov | 12° | 21° |
How much rain does Haikou get?
Haikou gets 1011 mm of precipitation in an average year, spread over about 116 days with measurable rain. That is more rainy days than 64% of China.
July is the wettest month, with 220 mm. February is the driest, with 12 mm. July has the most rainy days, about 19.
The longest dry spell in the last five years lasted 53 days, to February 23, 2023.
Haikou weather by month
Haikou weather in January
In January, Haikou averages a high of 16°C and a low of 4°C. It gets 25 mm of precipitation over about 4 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The January record high is 24°C (2023) and the record low is -6°C (1974).
Haikou weather in February
In February, Haikou averages a high of 18°C and a low of 6°C. It gets 12 mm of precipitation over about 3 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The February record high is 27°C (2013) and the record low is -3°C (1971). February is one of the most comfortable months to visit.
Haikou weather in March
In March, Haikou averages a high of 22°C and a low of 9°C. It gets 21 mm of precipitation over about 5 rainy days. Estimated sunshine is 70% of daylight hours, derived from ERA5 cloud cover. The March record high is 28°C (2004) and the record low is -5°C (1986). March is one of the most comfortable months to visit.
Haikou weather in April
In April, Haikou averages a high of 24°C and a low of 12°C. It gets 27 mm of precipitation over about 6 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The April record high is 31°C (1994) and the record low is 1°C (1970). April is one of the most comfortable months to visit.
Haikou weather in May
In May, Haikou averages a high of 25°C and a low of 15°C. It gets 82 mm of precipitation over about 11 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The May record high is 33°C (2014) and the record low is 6°C (1990). May is one of the most comfortable months to visit.
Haikou weather in June
In June, Haikou averages a high of 25°C and a low of 17°C. It gets 177 mm of precipitation over about 16 rainy days. Estimated sunshine is 13% of daylight hours, derived from ERA5 cloud cover. The June record high is 33°C (2023) and the record low is 9°C (2013). June is one of the most comfortable months to visit.
Haikou weather in July
In July, Haikou averages a high of 25°C and a low of 18°C. It gets 220 mm of precipitation over about 19 rainy days. Estimated sunshine is 15% of daylight hours, derived from ERA5 cloud cover. The July record high is 31°C (2022) and the record low is 12°C (1973).
Haikou weather in August
In August, Haikou averages a high of 25°C and a low of 17°C. It gets 196 mm of precipitation over about 18 rainy days. Estimated sunshine is 19% of daylight hours, derived from ERA5 cloud cover. The August record high is 31°C (2005) and the record low is 10°C (1978). August is one of the most comfortable months to visit.
Haikou weather in September
In September, Haikou averages a high of 23°C and a low of 16°C. It gets 122 mm of precipitation over about 13 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The September record high is 31°C (2010) and the record low is 6°C (1997). September is one of the most comfortable months to visit.
Haikou weather in October
In October, Haikou averages a high of 21°C and a low of 13°C. It gets 84 mm of precipitation over about 12 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (2023) and the record low is 2°C (1978). October is one of the most comfortable months to visit.
Haikou weather in November
In November, Haikou averages a high of 18°C and a low of 8°C. It gets 31 mm of precipitation over about 5 rainy days. Estimated sunshine is 55% of daylight hours, derived from ERA5 cloud cover. The November record high is 26°C (2002) and the record low is -3°C (1971). November is one of the most comfortable months to visit.
Haikou weather in December
In December, Haikou averages a high of 16°C and a low of 5°C. It gets 14 mm of precipitation over about 4 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The December record high is 25°C (1998) and the record low is -8°C (1983).
Sunshine, humidity and wind in Haikou
March is the sunniest month in Haikou, with estimated sunshine of 70% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 13%. The annual cloud-cover estimate is 42% of daylight hours; it is not a measurement of sunshine duration. Haikou is cloudier than 60% of China.
Humidity peaks in October at 81% and is lowest in March at 42%.
First and last freeze in Haikou
The first fall freeze in Haikou typically comes around December 16, and the last spring freeze around January 31. That leaves a frost-free growing season of about 319 days.
Haikou weather records
These records cover KUNMING during 1970–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Haikou station is 33°C, on May 25, 2014. The coldest is -8°C, on December 29, 1983.
The wettest day in the available station history brought 165 mm of precipitation, on June 7, 1986.
42 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.6°C per decade since 1970.
The best time to visit Haikou
The most comfortable time to visit is typically February to June and August to November, when daytime highs sit near 23°C.
Winter (December–February) is mild, with average highs around 17°C and lows near 5°C.
Spring (March–May) is warm, with average highs around 24°C and lows near 12°C.
Summer (June–August) is warm, with average highs around 25°C and lows near 17°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 21°C and lows near 12°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 4° | 16° | 25 mm | 4 | 68% | 60% | 24° | -6° |
| February | 6° | 18° | 12 mm | 3 | 57% | 64% | 27° | -3° |
| March | 9° | 22° | 21 mm | 5 | 42% | 70% | 28° | -5° |
| April | 12° | 24° | 27 mm | 6 | 46% | 63% | 31° | 1° |
| May | 15° | 25° | 82 mm | 11 | 58% | 44% | 33° | 6° |
| June | 17° | 25° | 177 mm | 16 | 74% | 13% | 33° | 9° |
| July | 18° | 25° | 220 mm | 19 | 78% | 15% | 31° | 12° |
| August | 17° | 25° | 196 mm | 18 | 80% | 19% | 31° | 10° |
| September | 16° | 23° | 122 mm | 13 | 79% | 23% | 31° | 6° |
| October | 13° | 21° | 84 mm | 12 | 81% | 30% | 28° | 2° |
| November | 8° | 18° | 31 mm | 5 | 74% | 55% | 26° | -3° |
| December | 5° | 16° | 14 mm | 4 | 77% | 47% | 25° | -8° |
Station: KUNMING, 29 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2025; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Haikou climate questions
How much rain does Haikou get?
Haikou gets 1011 mm of precipitation in an average year, over about 116 rainy days.
What is the wettest month in Haikou?
July is the wettest month in Haikou, with 220 mm. February is the driest, with 12 mm.
How many rainy days does Haikou have a year?
Haikou has about 116 days with measurable rain in an average year. July has the most, about 19.
What is the hottest month in Haikou?
May is the warmest month in Haikou, with an average high of 25°C.
What is the coldest month in Haikou?
January is the coldest month in Haikou, with an average low of 4°C.
What is the record high temperature in Haikou?
Within the available 1970–2025 station history, the record high at the Haikou station is 33°C, set on May 25, 2014. The record low is -8°C, on December 29, 1983.
What is the sunniest month in Haikou?
March is the sunniest month in Haikou, with estimated sunshine of 70% of daylight hours from ERA5 cloud cover. June is the cloudiest.
When is the first frost in Haikou?
The first fall freeze in Haikou typically comes around December 16. The last spring freeze is around January 31.
What is the best time to visit Haikou?
The most comfortable time to visit is typically February to June and August to November, when daytime highs sit near 23°C.