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Xinyi, Jiangsu Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Xinyi, Jiangsu?
Xinyi, Jiangsu gets 937 mm of precipitation a year over about 81 rainy days. July is the warmest month (average high 30°C) and January the coldest (average low -3°C).
Subtropical monsoon climate
Xinyi, Jiangsu has hot summers and chilly winters. Daytime highs range from about 5°C in January to 30°C in July. July is usually the wettest month. The most comfortable time to visit is typically April to May and September to October, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -2° | 7° |
| Spring | Mar–May | 9° | 19° |
| Summer | Jun–Aug | 22° | 29° |
| Autumn | Sep–Nov | 12° | 21° |
How much rain does Xinyi get?
Xinyi gets 937 mm of precipitation in an average year, spread over about 81 days with measurable rain. That is fewer rainy days than 60% of China.
July is the wettest month, with 244 mm. January is the driest, with 17 mm. July has the most rainy days, about 13.
The longest dry spell in the last five years lasted 54 days, to January 25, 2025.
Xinyi weather by month
Xinyi weather in January
In January, Xinyi averages a high of 5°C and a low of -3°C. It gets 17 mm of precipitation over about 4 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The January record high is 17°C (1979) and the record low is -14°C (1970).
Xinyi weather in February
In February, Xinyi averages a high of 8°C and a low of -1°C. It gets 23 mm of precipitation over about 5 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The February record high is 25°C (2021) and the record low is -14°C (1990).
Xinyi weather in March
In March, Xinyi averages a high of 13°C and a low of 3°C. It gets 31 mm of precipitation over about 5 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The March record high is 31°C (2013) and the record low is -8°C (1988).
Xinyi weather in April
In April, Xinyi averages a high of 19°C and a low of 9°C. It gets 42 mm of precipitation over about 6 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The April record high is 33°C (1978) and the record low is -3°C (1972). April is one of the most comfortable months to visit.
Xinyi weather in May
In May, Xinyi averages a high of 24°C and a low of 15°C. It gets 77 mm of precipitation over about 8 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The May record high is 37°C (1982) and the record low is 5°C (1987). May is one of the most comfortable months to visit.
Xinyi weather in June
In June, Xinyi averages a high of 28°C and a low of 20°C. It gets 104 mm of precipitation over about 7 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The June record high is 39°C (2024) and the record low is 11°C (2010).
Xinyi weather in July
In July, Xinyi averages a high of 30°C and a low of 24°C. It gets 244 mm of precipitation over about 13 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (2025) and the record low is 16°C (1976).
Xinyi weather in August
In August, Xinyi averages a high of 29°C and a low of 23°C. It gets 212 mm of precipitation over about 12 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The August record high is 38°C (2024) and the record low is 13°C (2003).
Xinyi weather in September
In September, Xinyi averages a high of 26°C and a low of 18°C. It gets 92 mm of precipitation over about 8 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The September record high is 36°C (2024) and the record low is 6°C (1972). September is one of the most comfortable months to visit.
Xinyi weather in October
In October, Xinyi averages a high of 21°C and a low of 12°C. It gets 35 mm of precipitation over about 5 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The October record high is 32°C (2021) and the record low is -1°C (1974). October is one of the most comfortable months to visit.
Xinyi weather in November
In November, Xinyi averages a high of 14°C and a low of 5°C. It gets 38 mm of precipitation over about 5 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The November record high is 29°C (2023) and the record low is -10°C (2015).
Xinyi weather in December
In December, Xinyi averages a high of 7°C and a low of -1°C. It gets 20 mm of precipitation over about 4 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The December record high is 21°C (2023) and the record low is -13°C (1985).
Sunshine, humidity and wind in Xinyi
December is the sunniest month in Xinyi, with estimated sunshine of 61% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 30%. The annual cloud-cover estimate is 45% of daylight hours; it is not a measurement of sunshine duration. Xinyi is cloudier than 52% of China.
Humidity peaks in July at 83% and is lowest in March at 57%.
Xinyi has about 19 days a year above 32°C. Xinyi is cooler than 59% of China.
First and last freeze in Xinyi
The first fall freeze in Xinyi typically comes around November 19, and the last spring freeze around March 22. That leaves a frost-free growing season of about 242 days.
Xinyi weather records
These records cover GANYU during 1970–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Xinyi station is 39°C, on July 15, 2002. The coldest is -14°C, on January 24, 2016.
The wettest day in the available station history brought 220 mm of precipitation, on August 4, 1990.
38 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.4°C per decade since 1970.
The best time to visit Xinyi
The most comfortable time to visit is typically April to May and September to October, when daytime highs sit near 23°C.
Winter (December–February) is chilly, with average highs around 7°C and lows near -2°C.
Spring (March–May) is mild, with average highs around 19°C and lows near 9°C.
Summer (June–August) is hot, with average highs around 29°C and lows near 22°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 | -3° | 5° | 17 mm | 4 | 64% | 52% | 17° | -14° |
| February | -1° | 8° | 23 mm | 5 | 62% | 43% | 25° | -14° |
| March | 3° | 13° | 31 mm | 5 | 57% | 44% | 31° | -8° |
| April | 9° | 19° | 42 mm | 6 | 57% | 41% | 33° | -3° |
| May | 15° | 24° | 77 mm | 8 | 58% | 44% | 37° | 5° |
| June | 20° | 28° | 104 mm | 7 | 63% | 40% | 39° | 11° |
| July | 24° | 30° | 244 mm | 13 | 83% | 30% | 39° | 16° |
| August | 23° | 29° | 212 mm | 12 | 81% | 41% | 38° | 13° |
| September | 18° | 26° | 92 mm | 8 | 76% | 47% | 36° | 6° |
| October | 12° | 21° | 35 mm | 5 | 68% | 48% | 32° | -1° |
| November | 5° | 14° | 38 mm | 5 | 66% | 52% | 29° | -10° |
| December | -1° | 7° | 20 mm | 4 | 57% | 61% | 21° | -13° |
Station: GANYU, 89 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.
Xinyi climate questions
How much rain does Xinyi get?
Xinyi gets 937 mm of precipitation in an average year, over about 81 rainy days.
What is the wettest month in Xinyi?
July is the wettest month in Xinyi, with 244 mm. January is the driest, with 17 mm.
How many rainy days does Xinyi have a year?
Xinyi has about 81 days with measurable rain in an average year. July has the most, about 13.
What is the hottest month in Xinyi?
July is the warmest month in Xinyi, with an average high of 30°C.
What is the coldest month in Xinyi?
January is the coldest month in Xinyi, with an average low of -3°C.
What is the record high temperature in Xinyi?
Within the available 1970–2025 station history, the record high at the Xinyi station is 39°C, set on July 15, 2002. The record low is -14°C, on January 24, 2016.
What is the sunniest month in Xinyi?
December is the sunniest month in Xinyi, with estimated sunshine of 61% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in Xinyi?
The first fall freeze in Xinyi typically comes around November 19. The last spring freeze is around March 22.
What is the best time to visit Xinyi?
The most comfortable time to visit is typically April to May and September to October, when daytime highs sit near 23°C.