Climate - Changsha (China)

The climate of Changsha is temperate humid, with quite cold winters and hot, muggy and rainy summers.
The city is located in southern China, in the province of Hunan, at 28 degrees north latitude, on the banks of the Xiang River, which 50 km (30 mi) to the north feeds Lake Dongting.
From January to June, the sky is often cloudy and the rains are frequent, but at first they are quite light, then they gradually become more abundant. In July and August, the rains become less frequent, and these are also the sunniest months of the year. The rains continue with moderate frequency until December.
In winter there are mild periods, but also quite cold periods, in which fog forms. In addition, there can sometimes be very cold periods, with snow and frost.
Summer is particularly hot and humid.

The average temperature of the coldest month (January) is of 5.3 °C (41.6 °F), that of the warmest month (July) is of 30.0 °C (86.0 °F). Here are the average temperatures.
Precipitation amounts to 1430 millimeters (56.3 inches) per year: it is therefore quite abundant. It ranges from 45 mm (1.8 in) in the driest month (December) to 225 mm (8.9 in) in the wettest one (June). Here is the average precipitation.
On average, there are around 1545 sunshine hours per year. Here are the average sunshine hours per day.

Changsha - Weather by month

Based on the period 2004-2020
(January - February - March - April - May - June - July - August - September - October - November - December)

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In January, the coldest month of the year, the average temperature in Changsha is of 5.3 °C (42 °F), with a minimum of 2 °C (35.7 °F) and a maximum of 8.6 °C (47.5 °F).
On the coldest nights of the month, the temperature usually drops to around -3 °C (26.5 °F). However, in January 2016, it dropped to -6 °C (21.2 °F).
On the warmest days of the month, the temperature usually reaches around 18.5 °C (65.5 °F). However, in January 2014, it reached 27 °C (80.6 °F).
Precipitation amounts to 75 mm (3 in), distributed over 14 days.
On average, there are 75 hours of sunshine per month, i.e. 2.5 hours per day.
The average humidity is 80%.
The average wind speed is 9 kph (6 kph).

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In February, the average temperature in Changsha is of 7.9 °C (46 °F), with a minimum of 4.4 °C (39.9 °F) and a maximum of 11.5 °C (52.6 °F).
On the coldest nights of the month, the temperature usually drops to around -1.5 °C (29.5 °F). However, in February 2008, it dropped to -6 °C (21.2 °F).
On the warmest days of the month, the temperature usually reaches around 24.5 °C (76 °F). However, in February 2010, it reached 30 °C (86 °F).
Precipitation amounts to 95 mm (3.7 in), distributed over 14 days.
On average, there are 65 hours of sunshine per month, i.e. 2 hours per day.
The average humidity is 80%.
The average wind speed is 10 kph (6 kph).

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In March, the average temperature in Changsha is of 13.0 °C (55 °F), with a minimum of 9.1 °C (48.5 °F) and a maximum of 16.8 °C (62.3 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F). However, in March 2006, it dropped to -2 °C (28.4 °F).
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, in March 2007, it reached 33 °C (91.4 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 18 days.
On average, there are 70 hours of sunshine per month, i.e. 2 hours per day.
The average humidity is 79%.
The average wind speed is 9 kph (5 kph).

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In April, the average temperature in Changsha is of 18.8 °C (66 °F), with a minimum of 14.6 °C (58.2 °F) and a maximum of 23 °C (73.3 °F).
On the coldest nights of the month, the temperature usually drops to around 7.5 °C (46 °F). However, in April 2010, it dropped to 4 °C (39.2 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F). However, in April 2005, it reached 35 °C (95 °F).
Precipitation amounts to 190 mm (7.5 in), distributed over 19 days.
On average, there are 90 hours of sunshine per month, i.e. 3 hours per day.
The average humidity is 76%.
The average wind speed is 9 kph (6 kph).

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In May, the average temperature in Changsha is of 23.4 °C (74 °F), with a minimum of 19.4 °C (67 °F) and a maximum of 27.4 °C (81.3 °F).
On the coldest nights of the month, the temperature usually drops to around 13 °C (55.5 °F). However, in May 2015, it dropped to 11.5 °C (52.7 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F). However, in May 2008, it reached 38 °C (100.4 °F).
Precipitation amounts to 180 mm (7.1 in), distributed over 16 days.
On average, there are 125 hours of sunshine per month, i.e. 4 hours per day.
The average humidity is 77%.
The average wind speed is 9 kph (5 kph).

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In June, the average temperature in Changsha is of 26.9 °C (80 °F), with a minimum of 23.4 °C (74 °F) and a maximum of 30.4 °C (86.7 °F).
On the coldest nights of the month, the temperature usually drops to around 19 °C (66 °F). However, in June 2013, it dropped to 16 °C (60.8 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, in June 2005, it reached 38 °C (100.4 °F).
Precipitation amounts to 225 mm (8.9 in), distributed over 13 days.
On average, there are 145 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 79%.
The average wind speed is 8 kph (5 kph).

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In July, the warmest month of the year, the average temperature in Changsha is of 30.0 °C (86 °F), with a minimum of 25.9 °C (78.6 °F) and a maximum of 34.1 °C (93.4 °F).
On the coldest nights of the month, the temperature usually drops to around 22.5 °C (73 °F). However, in July 2015, it dropped to 19 °C (66.2 °F).
On the warmest days of the month, the temperature usually reaches around 38.5 °C (101.5 °F). However, in July 2008, it reached 41 °C (105.8 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 10 days.
On average, there are 240 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 73%.
The average wind speed is 10 kph (6 kph).

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In August, the average temperature in Changsha is of 29.5 °C (85 °F), with a minimum of 25.2 °C (77.3 °F) and a maximum of 33.8 °C (92.8 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (69.5 °F). However, in August 2005, it dropped to 18 °C (64.4 °F).
On the warmest days of the month, the temperature usually reaches around 38.5 °C (101 °F). However, in August 2007, it reached 40 °C (104 °F).
Precipitation amounts to 105 mm (4.1 in), distributed over 10 days.
On average, there are 230 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 74%.
The average wind speed is 9 kph (6 kph).

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In September, the average temperature in Changsha is of 25.3 °C (78 °F), with a minimum of 21.2 °C (70.1 °F) and a maximum of 29.4 °C (84.9 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (61 °F). However, in September 2011, it dropped to 13 °C (55.4 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F). However, in September 2008, it reached 39 °C (102.2 °F).
Precipitation amounts to 75 mm (3 in), distributed over 10 days.
On average, there are 160 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 76%.
The average wind speed is 9 kph (6 kph).

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In October, the average temperature in Changsha is of 19.8 °C (68 °F), with a minimum of 15.5 °C (59.9 °F) and a maximum of 24.2 °C (75.5 °F).
On the coldest nights of the month, the temperature usually drops to around 10 °C (49.5 °F). However, in October 2010, it dropped to 5 °C (41 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (89 °F). However, in October 2019, it reached 38 °C (100.4 °F).
Precipitation amounts to 75 mm (3 in), distributed over 11 days.
On average, there are 135 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 75%.
The average wind speed is 9 kph (6 kph).

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In November, the average temperature in Changsha is of 13.6 °C (56 °F), with a minimum of 9.3 °C (48.8 °F) and a maximum of 17.9 °C (64.2 °F).
On the coldest nights of the month, the temperature usually drops to around 3 °C (37.5 °F). However, in November 2007, it dropped to -2 °C (28.4 °F).
On the warmest days of the month, the temperature usually reaches around 27 °C (81 °F). However, in November 2005, it reached 31 °C (87.8 °F).
Precipitation amounts to 80 mm (3.1 in), distributed over 10 days.
On average, there are 115 hours of sunshine per month, i.e. 4 hours per day.
The average humidity is 77%.
The average wind speed is 9 kph (6 kph).

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In December, the average temperature in Changsha is of 7.6 °C (46 °F), with a minimum of 3.5 °C (38.3 °F) and a maximum of 11.7 °C (53.1 °F).
On the coldest nights of the month, the temperature usually drops to around -2.5 °C (27.5 °F). However, in December 2004, it dropped to -6 °C (21.2 °F).
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67 °F). However, in December 2010, it reached 24 °C (75.2 °F).
Precipitation amounts to 45 mm (1.8 in), distributed over 9 days.
On average, there are 105 hours of sunshine per month, i.e. 3.5 hours per day.
The average humidity is 76%.
The average wind speed is 9 kph (6 kph).