Chongzuo climate — normals and trends

Q: What is the climate of Chongzuo?

Chongzuo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 1,514 mm of precipitation per year.

Q: What is the hottest day ever recorded in Chongzuo?

The hottest day measured in Chongzuo between 1940 and 2025 was 11 May 1958, reaching 41.7 °C.

Q: What is the coldest day in Chongzuo?

The coldest day measured in Chongzuo between 1940 and 2025 was 2 January 1974, at 0.0 °C.

Q: Does it snow in Chongzuo?

Almost never: Chongzuo sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Chongzuo warmed?

Yes: Chongzuo warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chongzuo?

The wettest day measured in Chongzuo between 1940 and 2025 was 24 July 1965, with 144 mm of rain in 24 hours.

Q: What was the windiest day in Chongzuo?

The windiest day measured in Chongzuo between 1940 and 2025 was 30 August 1954, with winds reaching 58.0 km/h.

Q: What is the warmest month in Chongzuo?

The warmest month in Chongzuo is July (28.0 °C on average); the coldest is January (13.9 °C).

Q: How much does it rain in Chongzuo?

Chongzuo receives on average 1,514 mm of precipitation per year, spread over about 178 rainy days.

Q: Is it sunny in Chongzuo?

Chongzuo gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.

Chongzuo (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.0 °C and it receives 1,514 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (28.0 °C on average) and the coldest is January (13.9 °C). Rainfall peaks in August.

Chongzuo averages 0 frost days, 122 hot days (≥ 30 °C) and 178 rainy days per year.

Chongzuo has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.7 °C (on 11 May 1958) and the coldest 0.0 °C (on 2 January 1974).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

ChongzuoGuangxi

coords: 22.38°, 107.37°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

22.0°C

Average daily high

26.0°C

Average daily low

18.9°C

Annual rainfall

1,514mm

Sunshine / day

7.2h

Mean relative humidity

79%

Average peak wind

12.8km/h

Seasonal range

14.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

122 d/yr

Rainy days (≥ 1 mm)

178 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.6 °C

Average feels-like low

20.8 °C

Average peak gust

29.5 km/h

Tropical nights (≥ 20 °C)

190 d/yr

Solar radiation

13.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.35 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

41.7 °C

11 May 1958

Coldest day

0.0 °C

2 January 1974

Wettest day

144 mm

24 July 1965

Windiest day

58.0 km/h

30 August 1954

Strongest gust

116.3 km/h

16 September 2014

Hottest feels-like

46.5 °C

1 June 1958

Coldest feels-like

-3.1 °C

2 January 1974

Snowiest day

0.7 cm

24 January 2016

Sunniest day

13.2 h

19 June 1961

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.6 °C20 April 2025	5.5 °C13 January 2025	22.8 °C	1,649 mm	154
2024	37.6 °C26 July 2024	5.3 °C23 January 2024	23.1 °C	1,691 mm	156
2023	41.2 °C3 June 2023	5.3 °C30 January 2023	23.4 °C	1,297 mm	148
2022	35.9 °C30 July 2022	5.5 °C20 February 2022	22.3 °C	1,525 mm	132
2021	38.3 °C17 July 2021	5.2 °C2 January 2021	23.1 °C	1,261 mm	162
2020	37.4 °C24 July 2020	6.9 °C17 December 2020	22.7 °C	1,291 mm	134
2019	37.1 °C19 May 2019	5.7 °C10 December 2019	22.7 °C	1,651 mm	142
2018	37.2 °C5 July 2018	4.8 °C6 February 2018	22.5 °C	1,566 mm	127
2017	39.0 °C5 June 2017	8.1 °C26 December 2017	22.6 °C	1,719 mm	130
2016	36.6 °C3 June 2016	3.2 °C24 January 2016	22.7 °C	1,386 mm	155
2015	37.3 °C19 April 2015	6.0 °C14 January 2015	23.0 °C	1,568 mm	152
2014	36.9 °C14 May 2014	2.6 °C20 February 2014	22.3 °C	1,383 mm	136
2013	36.2 °C15 May 2013	2.9 °C20 December 2013	22.1 °C	1,511 mm	129
2012	39.2 °C3 May 2012	5.5 °C5 January 2012	22.0 °C	1,679 mm	140
2011	37.1 °C2 June 2011	4.3 °C26 December 2011	21.4 °C	1,195 mm	130
2010	36.7 °C7 July 2010	5.1 °C17 December 2010	22.7 °C	1,476 mm	135
2009	36.0 °C21 June 2009	4.0 °C11 January 2009	23.1 °C	1,034 mm	164
2008	36.8 °C29 July 2008	3.2 °C28 January 2008	21.7 °C	1,407 mm	143
2007	36.6 °C24 May 2007	5.2 °C29 November 2007	22.6 °C	1,115 mm	148
2006	38.0 °C12 April 2006	5.8 °C23 December 2006	22.8 °C	1,368 mm	157
2005	37.4 °C17 May 2005	5.8 °C13 January 2005	22.2 °C	1,250 mm	153
2004	37.2 °C1 July 2004	3.4 °C9 February 2004	22.1 °C	1,162 mm	133
2003	36.9 °C6 May 2003	2.9 °C7 January 2003	22.9 °C	1,215 mm	149
2002	35.1 °C10 July 2002	4.4 °C26 December 2002	22.4 °C	1,477 mm	133
2001	35.3 °C6 July 2001	4.4 °C25 December 2001	22.0 °C	2,008 mm	113
2000	35.9 °C18 July 2000	4.0 °C2 February 2000	22.0 °C	1,247 mm	133
1999	35.5 °C6 June 1999	1.7 °C25 December 1999	22.4 °C	1,447 mm	131
1998	36.4 °C24 April 1998	5.5 °C20 January 1998	23.0 °C	1,139 mm	147
1997	35.7 °C20 August 1997	7.5 °C10 January 1997	22.2 °C	1,894 mm	116
1996	36.9 °C2 August 1996	3.7 °C21 February 1996	21.7 °C	1,540 mm	126
1995	35.6 °C23 June 1995	2.9 °C31 December 1995	21.9 °C	1,452 mm	118
1994	37.4 °C2 May 1994	6.4 °C20 January 1994	22.3 °C	1,867 mm	105
1993	35.2 °C26 July 1993	2.9 °C30 January 1993	22.0 °C	1,580 mm	137
1992	36.6 °C5 September 1992	5.4 °C15 January 1992	21.9 °C	1,289 mm	134
1991	37.6 °C25 May 1991	4.6 °C28 December 1991	22.5 °C	1,197 mm	149
1990	37.9 °C21 August 1990	5.6 °C2 February 1990	22.4 °C	1,541 mm	126
1989	35.9 °C17 July 1989	4.9 °C13 January 1989	21.9 °C	1,391 mm	123
1988	37.1 °C21 May 1988	4.5 °C21 February 1988	21.6 °C	1,369 mm	120
1987	37.2 °C2 May 1987	4.3 °C8 December 1987	22.8 °C	1,462 mm	144
1986	37.0 °C2 July 1986	3.9 °C7 January 1986	22.1 °C	1,836 mm	127
1985	36.4 °C23 June 1985	4.4 °C24 December 1985	21.5 °C	1,640 mm	142
1984	35.4 °C25 July 1984	2.5 °C9 January 1984	21.2 °C	1,573 mm	118
1983	37.0 °C13 July 1983	2.7 °C24 January 1983	21.6 °C	1,530 mm	148
1982	35.3 °C2 August 1982	0.6 °C27 December 1982	22.0 °C	1,693 mm	115
1981	36.1 °C8 August 1981	4.2 °C12 January 1981	22.0 °C	1,763 mm	129
1980	36.0 °C24 April 1980	4.4 °C7 February 1980	22.2 °C	1,520 mm	133
1979	36.5 °C29 July 1979	7.0 °C16 January 1979	22.1 °C	1,506 mm	120
1978	35.5 °C25 June 1978	4.2 °C21 January 1978	21.7 °C	2,075 mm	107
1977	35.8 °C16 June 1977	2.4 °C5 January 1977	21.8 °C	1,539 mm	122
1976	36.0 °C26 May 1976	3.9 °C13 January 1976	21.4 °C	1,678 mm	111
1975	35.3 °C7 August 1975	1.1 °C30 December 1975	22.0 °C	1,658 mm	127
1974	35.2 °C28 May 1974	0.0 °C2 January 1974	21.7 °C	1,748 mm	122
1973	36.3 °C23 June 1973	1.2 °C27 December 1973	22.4 °C	1,971 mm	129
1972	37.2 °C10 July 1972	4.1 °C11 February 1972	22.1 °C	1,879 mm	135
1971	36.5 °C22 July 1971	2.6 °C5 January 1971	21.7 °C	1,636 mm	117
1970	37.1 °C12 May 1970	4.6 °C31 January 1970	21.7 °C	1,473 mm	117
1969	36.9 °C28 July 1969	4.8 °C11 December 1969	22.1 °C	1,429 mm	145
1968	36.1 °C28 July 1968	3.3 °C14 February 1968	21.9 °C	1,740 mm	107
1967	36.9 °C12 July 1967	1.1 °C17 January 1967	21.5 °C	1,475 mm	126
1966	34.9 °C26 April 1966	3.9 °C1 January 1966	21.4 °C	1,622 mm	74
1965	34.2 °C20 July 1965	2.4 °C18 December 1965	21.4 °C	1,839 mm	74
1964	37.1 °C31 May 1964	3.8 °C19 December 1964	22.0 °C	1,511 mm	135
1963	37.2 °C24 June 1963	1.1 °C15 January 1963	22.4 °C	1,234 mm	144
1962	35.3 °C28 May 1962	3.6 °C27 January 1962	21.8 °C	1,496 mm	127
1961	36.0 °C5 April 1961	1.9 °C18 January 1961	22.2 °C	1,636 mm	125
1960	37.3 °C29 June 1960	3.9 °C3 January 1960	22.3 °C	1,697 mm	128
1959	36.1 °C30 August 1959	6.2 °C25 December 1959	21.8 °C	1,411 mm	124
1958	41.7 °C11 May 1958	3.1 °C2 February 1958	22.6 °C	1,185 mm	146
1957	37.2 °C15 August 1957	2.5 °C7 February 1957	22.3 °C	1,302 mm	135
1956	35.8 °C18 April 1956	2.3 °C11 January 1956	21.7 °C	1,092 mm	124
1955	35.4 °C16 April 1955	0.7 °C12 January 1955	21.7 °C	1,278 mm	88
1954	35.8 °C29 July 1954	4.1 °C16 December 1954	22.0 °C	1,180 mm	101
1953	35.8 °C13 August 1953	4.4 °C13 December 1953	21.9 °C	1,606 mm	97
1952	34.4 °C11 April 1952	3.7 °C19 February 1952	22.3 °C	1,667 mm	89
1951	33.3 °C1 August 1951	3.0 °C13 January 1951	21.5 °C	2,032 mm	68
1950	35.9 °C21 April 1950	5.5 °C14 February 1950	21.8 °C	1,817 mm	75
1949	37.6 °C14 June 1949	3.7 °C10 January 1949	22.3 °C	1,265 mm	111
1948	35.7 °C14 March 1948	3.2 °C26 January 1948	21.7 °C	1,490 mm	87
1947	33.7 °C14 June 1947	3.3 °C21 December 1947	21.2 °C	1,563 mm	56
1946	41.1 °C28 July 1946	3.9 °C8 January 1946	23.3 °C	643 mm	150
1945	33.0 °C18 April 1945	2.9 °C4 February 1945	20.2 °C	1,461 mm	57
1944	37.1 °C8 April 1944	1.5 °C21 December 1944	21.2 °C	1,834 mm	57
1943	35.6 °C28 May 1943	3.2 °C13 January 1943	21.3 °C	1,380 mm	91
1942	33.3 °C6 August 1942	4.7 °C14 December 1942	21.1 °C	1,932 mm	45
1941	33.8 °C26 April 1941	4.1 °C4 February 1941	21.2 °C	1,764 mm	52
1940	32.9 °C9 July 1940	2.8 °C25 January 1940	20.9 °C	1,561 mm	63

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

26.8 °C

+0.8 °C

Hot days (≥ 30 °C)

154 d/yr

+32

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1649 mm

+135 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.4 °C	+2.8 °C	7 mm	-33 mm
Feb	16.5 °C	-2.5 °C	34 mm	-10 mm
Mar	23.9 °C	+0.9 °C	32 mm	-34 mm
Apr	30.0 °C	+2.7 °C	50 mm	-50 mm
May	30.4 °C	+0.3 °C	189 mm	-7 mm
Jun	32.1 °C	+0.8 °C	245 mm	-5 mm
Jul	33.0 °C	+1.1 °C	296 mm	+61 mm
Aug	31.7 °C	+0.3 °C	282 mm	+21 mm
Sep	31.5 °C	+1.3 °C	266 mm	+101 mm
Oct	28.1 °C	+0.8 °C	148 mm	+64 mm
Nov	22.6 °C	-1.0 °C	53 mm	+9 mm
Dec	21.2 °C	+1.6 °C	48 mm	+18 mm

The year's extremes

Hottest day

36.6 °C

20 Apr 2025

Coldest day

5.5 °C

13 Jan 2025

Wettest day

67.2 mm

6 Oct 2025

Windiest day

35.5 km/h

6 Oct 2025

Strongest gust

80.6 km/h

6 Oct 2025

Hottest feels-like

45.4 °C

30 Jul 2025

Coldest feels-like

2.5 °C

12 Jan 2025

Sunniest day

12.8 h

5 Jul 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Chongzuo?

Chongzuo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 1,514 mm of precipitation per year.

What is the hottest day ever recorded in Chongzuo?

The hottest day measured in Chongzuo between 1940 and 2025 was 11 May 1958, reaching 41.7 °C.

What is the coldest day in Chongzuo?

The coldest day measured in Chongzuo between 1940 and 2025 was 2 January 1974, at 0.0 °C.

Does it snow in Chongzuo?

Almost never: Chongzuo sees virtually no snow, with about 0 frost days per year.

Has the climate of Chongzuo warmed?

Yes: Chongzuo warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chongzuo?

The wettest day measured in Chongzuo between 1940 and 2025 was 24 July 1965, with 144 mm of rain in 24 hours.

What was the windiest day in Chongzuo?

The windiest day measured in Chongzuo between 1940 and 2025 was 30 August 1954, with winds reaching 58.0 km/h.

What is the warmest month in Chongzuo?

The warmest month in Chongzuo is July (28.0 °C on average); the coldest is January (13.9 °C).

How much does it rain in Chongzuo?

Chongzuo receives on average 1,514 mm of precipitation per year, spread over about 178 rainy days.

Is it sunny in Chongzuo?

Chongzuo gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.

What is the biggest single-day snowfall in Chongzuo?

The heaviest 24-hour snowfall measured in Chongzuo between 1940 and 2025 was 24 January 2016, with 0.7 cm.

Are there tropical nights in Chongzuo?

Yes: Chongzuo has on average 190 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chongzuo?

In Chongzuo, between 1940 and 2025, the highest apparent temperature reached 46.5 °C on 1 June 1958, and the lowest was -3.1 °C on 2 January 1974.

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