Siavonga climate — normals and trends

Q: What is the climate of Siavonga?

Siavonga has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 1,016 mm of precipitation per year.

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

The hottest day measured in Siavonga between 1940 and 2025 was 28 October 2019, reaching 40.9 °C.

Q: What is the coldest day in Siavonga?

The coldest day measured in Siavonga between 1940 and 2025 was 17 June 1968, at 9.1 °C.

Q: Does it snow in Siavonga?

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

Q: Has the climate of Siavonga warmed?

Yes: Siavonga warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Siavonga?

The wettest day measured in Siavonga between 1940 and 2025 was 16 January 1996, with 137 mm of rain in 24 hours.

Q: What was the windiest day in Siavonga?

The windiest day measured in Siavonga between 1940 and 2025 was 4 September 1947, with winds reaching 32.1 km/h.

Q: What is the warmest month in Siavonga?

The warmest month in Siavonga is October (28.9 °C on average); the coldest is July (19.8 °C).

Q: How much does it rain in Siavonga?

Siavonga receives on average 1,016 mm of precipitation per year, spread over about 101 rainy days.

Q: Is it sunny in Siavonga?

Siavonga gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Siavonga (Zambia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 1,016 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 (28.9 °C on average) and the coldest is July (19.8 °C). Rainfall peaks in January.

Siavonga averages 0 frost days, 135 hot days (≥ 30 °C) and 101 rainy days per year.

Siavonga has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.9 °C (on 28 October 2019) and the coldest 9.1 °C (on 17 June 1968).

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

SiavongaSouthern Province

coords: -16.54°, 28.71°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

24.6°C

Average daily high

29.2°C

Average daily low

20.6°C

Annual rainfall

1,016mm

Sunshine / day

10.8h

Mean relative humidity

62%

Average peak wind

14.9km/h

Seasonal range

9.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

135 d/yr

Rainy days (≥ 1 mm)

101 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.3 °C

Average feels-like low

21.6 °C

Average peak gust

31.0 km/h

Tropical nights (≥ 20 °C)

227 d/yr

Solar radiation

20.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.39 · 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

40.9 °C

28 October 2019

Coldest day

9.1 °C

17 June 1968

Wettest day

137 mm

16 January 1996

Windiest day

32.1 km/h

4 September 1947

Strongest gust

59.4 km/h

4 September 1947

Hottest feels-like

44.1 °C

26 October 2011

Coldest feels-like

5.7 °C

17 June 1968

Sunniest day

12.9 h

15 December 1950

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.7 °C2 November 2025	13.4 °C4 August 2025	25.8 °C	1,042 mm	200
2024	38.4 °C5 November 2024	14.5 °C15 June 2024	26.5 °C	615 mm	227
2023	38.7 °C20 November 2023	12.9 °C13 July 2023	26.0 °C	917 mm	206
2022	38.0 °C27 October 2022	13.1 °C14 June 2022	25.0 °C	1,089 mm	148
2021	39.2 °C10 November 2021	13.2 °C26 July 2021	25.5 °C	872 mm	171
2020	39.9 °C8 November 2020	13.4 °C18 July 2020	25.4 °C	917 mm	175
2019	40.9 °C28 October 2019	12.9 °C24 July 2019	26.3 °C	616 mm	232
2018	38.8 °C2 November 2018	14.1 °C7 June 2018	25.6 °C	878 mm	191
2017	39.5 °C18 October 2017	13.1 °C8 June 2017	24.7 °C	1,204 mm	109
2016	39.4 °C1 November 2016	12.9 °C10 June 2016	25.6 °C	992 mm	178
2015	39.6 °C14 November 2015	12.5 °C4 August 2015	25.3 °C	825 mm	157
2014	38.5 °C10 October 2014	12.6 °C13 July 2014	25.3 °C	975 mm	151
2013	38.5 °C16 November 2013	12.9 °C20 June 2013	25.1 °C	979 mm	151
2012	39.4 °C19 October 2012	10.9 °C12 June 2012	24.9 °C	890 mm	145
2011	40.8 °C26 October 2011	11.2 °C28 June 2011	24.8 °C	964 mm	138
2010	38.2 °C12 October 2010	12.2 °C14 August 2010	25.0 °C	1,126 mm	160
2009	36.8 °C9 November 2009	11.8 °C28 July 2009	24.1 °C	1,014 mm	106
2008	37.0 °C27 September 2008	12.3 °C29 June 2008	24.4 °C	1,130 mm	112
2007	36.6 °C7 October 2007	12.5 °C23 June 2007	24.6 °C	1,318 mm	147
2006	38.1 °C31 October 2006	12.8 °C2 July 2006	24.8 °C	1,028 mm	128
2005	39.0 °C17 November 2005	12.7 °C31 July 2005	25.6 °C	680 mm	206
2004	37.6 °C27 October 2004	12.3 °C22 July 2004	24.5 °C	1,074 mm	133
2003	39.1 °C17 October 2003	11.9 °C11 July 2003	25.0 °C	948 mm	163
2002	36.9 °C20 October 2002	12.5 °C6 June 2002	25.3 °C	589 mm	192
2001	38.8 °C19 October 2001	12.1 °C26 July 2001	24.6 °C	1,201 mm	148
2000	37.3 °C26 October 2000	13.2 °C5 July 2000	24.5 °C	1,140 mm	126
1999	37.9 °C23 October 1999	12.6 °C23 July 1999	24.4 °C	947 mm	102
1998	39.2 °C4 November 1998	12.9 °C16 July 1998	25.3 °C	1,079 mm	164
1997	38.6 °C12 November 1997	12.8 °C9 July 1997	24.5 °C	1,275 mm	102
1996	38.8 °C14 November 1996	12.2 °C2 July 1996	25.0 °C	1,172 mm	134
1995	38.6 °C27 October 1995	12.6 °C16 June 1995	25.9 °C	625 mm	201
1994	39.8 °C22 November 1994	11.1 °C2 July 1994	25.2 °C	648 mm	170
1993	37.7 °C1 November 1993	13.1 °C22 June 1993	25.2 °C	1,042 mm	152
1992	39.0 °C24 October 1992	12.9 °C7 July 1992	26.1 °C	696 mm	201
1991	37.2 °C20 October 1991	12.2 °C14 June 1991	25.0 °C	860 mm	139
1990	39.1 °C6 November 1990	12.2 °C26 July 1990	24.9 °C	785 mm	138
1989	37.8 °C10 November 1989	12.3 °C22 July 1989	24.5 °C	1,138 mm	119
1988	37.6 °C10 October 1988	12.6 °C18 July 1988	24.9 °C	815 mm	154
1987	39.1 °C20 November 1987	11.6 °C24 June 1987	25.5 °C	598 mm	212
1986	36.2 °C7 October 1986	11.5 °C23 July 1986	23.8 °C	1,259 mm	112
1985	35.3 °C8 November 1985	9.7 °C14 July 1985	23.9 °C	1,138 mm	103
1984	36.5 °C16 October 1984	12.5 °C18 June 1984	24.6 °C	983 mm	138
1983	37.6 °C15 November 1983	12.5 °C11 August 1983	25.5 °C	849 mm	188
1982	37.1 °C10 November 1982	11.5 °C16 July 1982	24.4 °C	752 mm	146
1981	37.8 °C9 November 1981	9.3 °C18 June 1981	23.7 °C	1,167 mm	123
1980	36.1 °C17 October 1980	11.8 °C21 June 1980	24.2 °C	811 mm	145
1979	37.1 °C3 October 1979	12.4 °C30 July 1979	24.0 °C	941 mm	135
1978	36.9 °C30 September 1978	11.7 °C28 June 1978	23.7 °C	1,516 mm	90
1977	37.2 °C14 October 1977	12.6 °C27 June 1977	24.6 °C	1,085 mm	133
1976	37.8 °C20 November 1976	12.1 °C18 July 1976	23.6 °C	1,196 mm	99
1975	37.7 °C5 November 1975	12.8 °C26 July 1975	23.9 °C	963 mm	112
1974	37.3 °C18 October 1974	12.5 °C28 July 1974	23.4 °C	1,191 mm	85
1973	36.8 °C27 October 1973	12.9 °C15 July 1973	24.4 °C	1,016 mm	147
1972	37.8 °C24 November 1972	12.8 °C3 July 1972	24.5 °C	769 mm	139
1971	36.5 °C1 November 1971	13.0 °C12 June 1971	24.3 °C	907 mm	130
1970	37.1 °C8 October 1970	13.1 °C10 June 1970	24.7 °C	844 mm	145
1969	38.5 °C26 November 1969	12.9 °C23 June 1969	24.4 °C	1,244 mm	118
1968	38.6 °C20 October 1968	9.1 °C17 June 1968	24.6 °C	772 mm	162
1967	37.5 °C6 October 1967	11.3 °C17 July 1967	24.3 °C	683 mm	108
1966	37.7 °C31 October 1966	11.4 °C28 July 1966	24.8 °C	718 mm	129
1965	36.5 °C1 November 1965	10.6 °C5 July 1965	24.1 °C	461 mm	120
1964	36.8 °C26 October 1964	10.5 °C29 June 1964	24.5 °C	758 mm	157
1963	36.7 °C7 October 1963	12.1 °C7 June 1963	24.0 °C	1,102 mm	101
1962	37.2 °C18 October 1962	13.4 °C27 June 1962	23.9 °C	1,236 mm	70
1961	38.2 °C15 October 1961	13.0 °C10 August 1961	24.2 °C	1,146 mm	84
1960	37.3 °C10 October 1960	12.8 °C5 July 1960	24.3 °C	751 mm	112
1959	36.1 °C16 November 1959	14.3 °C15 June 1959	24.2 °C	1,224 mm	95
1958	35.7 °C17 October 1958	12.9 °C13 August 1958	23.8 °C	1,910 mm	86
1957	39.4 °C25 November 1957	13.1 °C8 August 1957	24.2 °C	1,237 mm	94
1956	36.3 °C25 October 1956	12.5 °C7 July 1956	23.2 °C	1,404 mm	55
1955	38.1 °C14 November 1955	12.3 °C29 July 1955	23.4 °C	1,683 mm	69
1954	39.3 °C27 October 1954	12.2 °C26 July 1954	25.0 °C	564 mm	182
1953	37.1 °C31 October 1953	11.4 °C2 July 1953	23.5 °C	1,459 mm	72
1952	37.3 °C2 October 1952	12.3 °C6 August 1952	24.4 °C	1,293 mm	118
1951	38.5 °C28 November 1951	12.6 °C15 July 1951	25.7 °C	607 mm	205
1950	37.2 °C24 October 1950	12.9 °C11 June 1950	23.8 °C	1,053 mm	100
1949	39.3 °C3 November 1949	12.9 °C9 August 1949	24.5 °C	1,109 mm	145
1948	37.7 °C14 October 1948	12.8 °C15 July 1948	23.9 °C	1,652 mm	88
1947	37.8 °C5 November 1947	12.1 °C17 July 1947	23.9 °C	1,299 mm	77
1946	38.4 °C25 October 1946	12.4 °C11 July 1946	23.8 °C	1,510 mm	76
1945	37.4 °C14 October 1945	13.4 °C18 June 1945	24.3 °C	1,110 mm	104
1944	37.6 °C27 September 1944	13.1 °C14 July 1944	24.3 °C	1,112 mm	88
1943	38.4 °C25 November 1943	12.9 °C28 June 1943	24.2 °C	1,136 mm	90
1942	37.1 °C23 October 1942	13.0 °C28 July 1942	24.2 °C	1,109 mm	87
1941	39.5 °C13 October 1941	13.0 °C23 June 1941	25.1 °C	831 mm	155
1940	36.5 °C2 November 1940	12.6 °C17 July 1940	24.0 °C	1,124 mm	97

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

30.3 °C

+1.1 °C

Hot days (≥ 30 °C)

200 d/yr

+65

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1042 mm

+26 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.8 °C	+1.0 °C	352 mm	+81 mm
Feb	30.3 °C	+1.5 °C	172 mm	-63 mm
Mar	31.5 °C	+2.4 °C	32 mm	-105 mm
Apr	30.8 °C	+1.8 °C	70 mm	+37 mm
May	28.7 °C	+1.1 °C	5 mm	+1 mm
Jun	26.9 °C	+1.5 °C	0 mm	-1 mm
Jul	26.5 °C	+1.3 °C	0 mm	-0 mm
Aug	29.4 °C	+1.6 °C	0 mm	-0 mm
Sep	33.9 °C	+2.3 °C	0 mm	-1 mm
Oct	34.9 °C	+0.8 °C	0 mm	-10 mm
Nov	31.5 °C	-1.3 °C	165 mm	+80 mm
Dec	29.8 °C	-0.1 °C	245 mm	+8 mm

The year's extremes

Hottest day

38.7 °C

2 Nov 2025

Coldest day

13.4 °C

4 Aug 2025

Wettest day

40.1 mm

18 Nov 2025

Windiest day

27.6 km/h

3 Nov 2025

Strongest gust

51.5 km/h

3 Nov 2025

Hottest feels-like

41.9 °C

2 Nov 2025

Coldest feels-like

11.9 °C

4 Aug 2025

Sunniest day

12.7 h

12 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 Siavonga?

Siavonga has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 1,016 mm of precipitation per year.

What is the hottest day ever recorded in Siavonga?

The hottest day measured in Siavonga between 1940 and 2025 was 28 October 2019, reaching 40.9 °C.

What is the coldest day in Siavonga?

The coldest day measured in Siavonga between 1940 and 2025 was 17 June 1968, at 9.1 °C.

Does it snow in Siavonga?

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

Has the climate of Siavonga warmed?

Yes: Siavonga warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Siavonga?

The wettest day measured in Siavonga between 1940 and 2025 was 16 January 1996, with 137 mm of rain in 24 hours.

What was the windiest day in Siavonga?

The windiest day measured in Siavonga between 1940 and 2025 was 4 September 1947, with winds reaching 32.1 km/h.

What is the warmest month in Siavonga?

The warmest month in Siavonga is October (28.9 °C on average); the coldest is July (19.8 °C).

How much does it rain in Siavonga?

Siavonga receives on average 1,016 mm of precipitation per year, spread over about 101 rainy days.

Is it sunny in Siavonga?

Siavonga gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Are there tropical nights in Siavonga?

Yes: Siavonga has on average 227 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Siavonga?

In Siavonga, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 26 October 2011, and the lowest was 5.7 °C on 17 June 1968.

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