Choma climate — normals and trends

Q: What is the climate of Choma?

Choma has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.8 °C and it receives 888 mm of precipitation per year.

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

The hottest day measured in Choma between 1940 and 2025 was 18 October 2017, reaching 37.5 °C.

Q: What is the coldest day in Choma?

The coldest day measured in Choma between 1940 and 2025 was 1 July 1994, at 2.4 °C.

Q: Does it snow in Choma?

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

Q: Has the climate of Choma warmed?

Yes: Choma warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Choma?

The wettest day measured in Choma between 1940 and 2025 was 9 March 2003, with 110 mm of rain in 24 hours.

Q: What was the windiest day in Choma?

The windiest day measured in Choma between 1940 and 2025 was 9 June 2009, with winds reaching 36.2 km/h.

Q: What is the warmest month in Choma?

The warmest month in Choma is October (24.1 °C on average); the coldest is July (15.0 °C).

Q: How much does it rain in Choma?

Choma receives on average 888 mm of precipitation per year, spread over about 115 rainy days.

Q: Is it sunny in Choma?

Choma gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Choma (Zambia) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 19.8 °C and it receives 888 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 October (24.1 °C on average) and the coldest is July (15.0 °C). Rainfall peaks in January.

Choma averages 0 frost days, 45 hot days (≥ 30 °C) and 115 rainy days per year.

Choma has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.5 °C (on 18 October 2017) and the coldest 2.4 °C (on 1 July 1994).

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

ChomaSouthern Province

coords: -16.81°, 26.99°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthOctoberColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

19.8°C

Average daily high

25.6°C

Average daily low

14.9°C

Annual rainfall

888mm

Sunshine / day

10.6h

Mean relative humidity

63%

Average peak wind

16.4km/h

Seasonal range

9.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

45 d/yr

Rainy days (≥ 1 mm)

115 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.9 °C

Average feels-like low

13.9 °C

Average peak gust

35.8 km/h

Tropical nights (≥ 20 °C)

15 d/yr

Solar radiation

20.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.26 · 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

37.5 °C

18 October 2017

Coldest day

2.4 °C

1 July 1994

Wettest day

110 mm

9 March 2003

Windiest day

36.2 km/h

9 June 2009

Strongest gust

71.3 km/h

3 November 2025

Hottest feels-like

38.0 °C

26 October 2011

Coldest feels-like

-3.3 °C

1 July 1994

Sunniest day

12.8 h

24 January 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.2 °C28 September 2025	6.0 °C11 July 2025	20.7 °C	981 mm	61
2024	36.2 °C29 September 2024	6.4 °C16 June 2024	21.9 °C	494 mm	103
2023	35.3 °C19 November 2023	6.2 °C14 July 2023	21.1 °C	906 mm	80
2022	33.0 °C4 October 2022	5.9 °C13 June 2022	19.8 °C	1,067 mm	45
2021	36.0 °C10 October 2021	6.6 °C8 July 2021	20.3 °C	901 mm	69
2020	36.0 °C8 November 2020	6.0 °C6 July 2020	20.3 °C	871 mm	58
2019	36.3 °C26 October 2019	5.8 °C28 July 2019	21.2 °C	542 mm	98
2018	34.5 °C2 November 2018	7.0 °C9 June 2018	20.4 °C	825 mm	59
2017	37.5 °C18 October 2017	6.8 °C23 June 2017	19.9 °C	1,126 mm	38
2016	35.6 °C31 October 2016	6.1 °C14 July 2016	20.6 °C	1,022 mm	65
2015	35.6 °C13 November 2015	5.1 °C4 August 2015	20.5 °C	794 mm	66
2014	34.7 °C10 October 2014	5.4 °C13 July 2014	20.3 °C	853 mm	59
2013	35.6 °C28 September 2013	5.5 °C20 June 2013	20.3 °C	806 mm	57
2012	34.9 °C19 October 2012	4.6 °C20 July 2012	20.1 °C	865 mm	52
2011	36.9 °C26 October 2011	3.7 °C27 June 2011	19.8 °C	893 mm	43
2010	35.4 °C12 October 2010	5.5 °C14 August 2010	20.0 °C	1,128 mm	45
2009	33.5 °C8 October 2009	4.5 °C10 July 2009	19.5 °C	953 mm	35
2008	34.7 °C26 September 2008	4.9 °C1 July 2008	19.5 °C	1,001 mm	52
2007	33.8 °C24 September 2007	5.1 °C16 July 2007	19.7 °C	1,251 mm	22
2006	33.8 °C25 October 2006	4.4 °C29 June 2006	19.7 °C	844 mm	38
2005	34.9 °C3 November 2005	5.7 °C31 July 2005	20.3 °C	752 mm	47
2004	33.2 °C7 October 2004	5.6 °C11 July 2004	19.5 °C	916 mm	30
2003	35.5 °C15 October 2003	5.0 °C9 July 2003	20.1 °C	1,053 mm	50
2002	33.6 °C19 October 2002	6.2 °C6 June 2002	20.2 °C	539 mm	33
2001	34.3 °C19 October 2001	5.3 °C17 June 2001	19.8 °C	968 mm	42
2000	33.0 °C10 October 2000	5.4 °C5 July 2000	19.6 °C	935 mm	32
1999	34.2 °C5 November 1999	4.9 °C30 June 1999	19.4 °C	730 mm	27
1998	35.9 °C4 November 1998	5.9 °C17 July 1998	20.4 °C	823 mm	46
1997	35.0 °C10 November 1997	5.9 °C17 July 1997	19.8 °C	838 mm	27
1996	35.0 °C21 October 1996	4.5 °C3 July 1996	20.1 °C	938 mm	59
1995	35.4 °C13 October 1995	4.9 °C17 July 1995	20.7 °C	623 mm	71
1994	34.8 °C22 November 1994	2.4 °C1 July 1994	19.8 °C	657 mm	54
1993	33.7 °C4 November 1993	5.2 °C17 August 1993	19.8 °C	912 mm	39
1992	34.4 °C20 October 1992	4.8 °C6 July 1992	20.5 °C	649 mm	58
1991	33.0 °C9 October 1991	4.8 °C11 July 1991	19.7 °C	815 mm	34
1990	35.7 °C6 November 1990	5.2 °C26 July 1990	20.0 °C	738 mm	41
1989	34.1 °C2 November 1989	4.0 °C19 June 1989	19.6 °C	858 mm	52
1988	33.3 °C10 October 1988	5.4 °C16 June 1988	19.7 °C	735 mm	37
1987	36.2 °C20 November 1987	3.6 °C24 June 1987	20.6 °C	635 mm	67
1986	32.9 °C7 October 1986	4.3 °C16 June 1986	18.9 °C	970 mm	14
1985	31.5 °C20 September 1985	4.6 °C13 July 1985	19.2 °C	831 mm	18
1984	33.6 °C5 September 1984	5.8 °C18 June 1984	19.8 °C	719 mm	41
1983	33.4 °C4 October 1983	5.3 °C14 August 1983	20.5 °C	809 mm	60
1982	33.0 °C7 November 1982	4.2 °C18 July 1982	19.6 °C	698 mm	27
1981	33.9 °C8 November 1981	3.8 °C19 June 1981	19.0 °C	986 mm	42
1980	32.4 °C8 September 1980	4.9 °C21 June 1980	19.3 °C	850 mm	21
1979	34.2 °C24 September 1979	5.8 °C23 June 1979	19.1 °C	743 mm	39
1978	34.4 °C30 September 1978	5.0 °C12 July 1978	19.0 °C	1,325 mm	32
1977	34.1 °C14 October 1977	5.8 °C20 June 1977	19.8 °C	943 mm	55
1976	33.9 °C20 November 1976	6.6 °C6 July 1976	18.7 °C	908 mm	25
1975	33.5 °C26 October 1975	4.8 °C26 July 1975	18.8 °C	851 mm	38
1974	33.5 °C18 October 1974	5.6 °C28 July 1974	18.5 °C	1,087 mm	21
1973	34.4 °C27 October 1973	5.1 °C10 July 1973	19.6 °C	855 mm	38
1972	34.6 °C24 November 1972	4.9 °C3 July 1972	19.5 °C	689 mm	60
1971	33.3 °C30 October 1971	6.5 °C12 June 1971	19.4 °C	871 mm	21
1970	33.7 °C2 November 1970	7.2 °C20 June 1970	19.8 °C	665 mm	30
1969	34.0 °C9 October 1969	6.7 °C29 July 1969	19.4 °C	1,172 mm	36
1968	35.3 °C28 October 1968	2.9 °C17 June 1968	20.0 °C	743 mm	37
1967	34.5 °C6 October 1967	4.5 °C13 July 1967	19.6 °C	557 mm	37
1966	35.8 °C31 October 1966	4.5 °C28 July 1966	20.1 °C	813 mm	52
1965	34.5 °C31 October 1965	4.5 °C5 July 1965	19.4 °C	466 mm	27
1964	33.8 °C26 October 1964	3.2 °C29 June 1964	19.6 °C	814 mm	38
1963	33.9 °C6 October 1963	6.3 °C30 July 1963	19.4 °C	852 mm	31
1962	35.2 °C18 October 1962	7.7 °C2 August 1962	19.5 °C	1,115 mm	37
1961	35.4 °C15 October 1961	6.7 °C10 August 1961	19.2 °C	994 mm	39
1960	34.4 °C10 October 1960	5.7 °C3 July 1960	19.3 °C	733 mm	41
1959	33.6 °C19 October 1959	7.9 °C3 July 1959	19.4 °C	922 mm	29
1958	33.0 °C17 October 1958	7.1 °C15 August 1958	19.2 °C	1,537 mm	18
1957	33.6 °C26 November 1957	7.6 °C16 June 1957	19.6 °C	1,271 mm	55
1956	33.4 °C15 October 1956	6.6 °C13 July 1956	18.8 °C	1,110 mm	34
1955	34.2 °C15 October 1955	6.8 °C12 August 1955	18.8 °C	1,417 mm	38
1954	36.1 °C27 October 1954	6.8 °C21 June 1954	20.7 °C	400 mm	85
1953	34.8 °C31 October 1953	6.0 °C12 June 1953	18.9 °C	1,142 mm	32
1952	35.1 °C11 October 1952	7.4 °C6 August 1952	19.9 °C	928 mm	51
1951	35.9 °C10 October 1951	7.0 °C13 July 1951	20.8 °C	585 mm	85
1950	34.1 °C24 October 1950	6.7 °C20 August 1950	19.1 °C	923 mm	48
1949	36.4 °C3 November 1949	7.0 °C8 June 1949	19.8 °C	936 mm	55
1948	34.5 °C13 October 1948	6.7 °C5 July 1948	19.2 °C	1,410 mm	41
1947	34.2 °C26 October 1947	7.0 °C17 July 1947	19.4 °C	972 mm	48
1946	35.4 °C25 October 1946	6.3 °C10 July 1946	19.1 °C	1,279 mm	41
1945	34.2 °C13 October 1945	7.1 °C6 July 1945	19.5 °C	867 mm	46
1944	35.5 °C27 September 1944	7.3 °C13 July 1944	19.6 °C	896 mm	49
1943	34.7 °C26 October 1943	6.8 °C29 June 1943	19.4 °C	931 mm	53
1942	34.4 °C12 October 1942	6.9 °C2 August 1942	19.4 °C	946 mm	41
1941	36.6 °C12 October 1941	7.1 °C6 July 1941	20.6 °C	769 mm	72
1940	33.5 °C17 October 1940	6.6 °C14 July 1940	19.3 °C	813 mm	42

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

26.4 °C

+0.8 °C

Hot days (≥ 30 °C)

61 d/yr

+16

Frost days (< 0 °C)

0 d/yr

Annual rainfall

981 mm

+93 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.1 °C	+0.7 °C	212 mm	-5 mm
Feb	27.0 °C	+1.6 °C	216 mm	+31 mm
Mar	27.1 °C	+1.6 °C	85 mm	-30 mm
Apr	26.0 °C	+0.9 °C	41 mm	+10 mm
May	23.8 °C	0.0 °C	6 mm	+2 mm
Jun	23.0 °C	+1.1 °C	1 mm	-1 mm
Jul	21.9 °C	+0.2 °C	1 mm	-0 mm
Aug	26.6 °C	+1.9 °C	0 mm	-0 mm
Sep	31.0 °C	+2.4 °C	1 mm	-1 mm
Oct	31.3 °C	+0.8 °C	8 mm	-11 mm
Nov	26.9 °C	-1.4 °C	144 mm	+37 mm
Dec	25.8 °C	-0.2 °C	267 mm	+62 mm

The year's extremes

Hottest day

35.2 °C

28 Sep 2025

Coldest day

6.0 °C

11 Jul 2025

Wettest day

37.8 mm

28 Feb 2025

Windiest day

30.4 km/h

3 Nov 2025

Strongest gust

71.3 km/h

3 Nov 2025

Hottest feels-like

34.9 °C

2 Nov 2025

Coldest feels-like

2.6 °C

11 Jul 2025

Sunniest day

12.8 h

24 Jan 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 Choma?

Choma has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.8 °C and it receives 888 mm of precipitation per year.

What is the hottest day ever recorded in Choma?

The hottest day measured in Choma between 1940 and 2025 was 18 October 2017, reaching 37.5 °C.

What is the coldest day in Choma?

The coldest day measured in Choma between 1940 and 2025 was 1 July 1994, at 2.4 °C.

Does it snow in Choma?

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

Has the climate of Choma warmed?

Yes: Choma warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Choma?

The wettest day measured in Choma between 1940 and 2025 was 9 March 2003, with 110 mm of rain in 24 hours.

What was the windiest day in Choma?

The windiest day measured in Choma between 1940 and 2025 was 9 June 2009, with winds reaching 36.2 km/h.

What is the warmest month in Choma?

The warmest month in Choma is October (24.1 °C on average); the coldest is July (15.0 °C).

How much does it rain in Choma?

Choma receives on average 888 mm of precipitation per year, spread over about 115 rainy days.

Is it sunny in Choma?

Choma gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Choma?

Yes: Choma has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Choma?

In Choma, between 1940 and 2025, the highest apparent temperature reached 38.0 °C on 26 October 2011, and the lowest was -3.3 °C on 1 July 1994.

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