Bubanza climate — normals and trends

Q: What is the climate of Bubanza?

Bubanza has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 18.3 °C and it receives 2,949 mm of precipitation per year.

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

The hottest day measured in Bubanza between 1940 and 2025 was 25 September 1997, reaching 32.8 °C.

Q: What is the coldest day in Bubanza?

The coldest day measured in Bubanza between 1940 and 2025 was 30 June 1968, at 8.6 °C.

Q: Does it snow in Bubanza?

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

Q: Has the climate of Bubanza warmed?

Yes: Bubanza warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bubanza?

The wettest day measured in Bubanza between 1940 and 2025 was 26 December 1977, with 181 mm of rain in 24 hours.

Q: What was the windiest day in Bubanza?

The windiest day measured in Bubanza between 1940 and 2025 was 20 August 1951, with winds reaching 17.8 km/h.

Q: What is the warmest month in Bubanza?

The warmest month in Bubanza is September (19.1 °C on average); the coldest is June (17.9 °C).

Q: How much does it rain in Bubanza?

Bubanza receives on average 2,949 mm of precipitation per year, spread over about 239 rainy days.

Q: Is it sunny in Bubanza?

Bubanza gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Bubanza (Burundi) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 18.3 °C and it receives 2,949 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 September (19.1 °C on average) and the coldest is June (17.9 °C). Rainfall peaks in April.

Bubanza averages 0 frost days, 0 hot days (≥ 30 °C) and 239 rainy days per year.

Bubanza has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 32.8 °C (on 25 September 1997) and the coldest 8.6 °C (on 30 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

BubanzaBubanza Province

coords: -3.08°, 29.39°
period: 1940–2025 · 86 yrs

CwbSubtropical highland, dry winterWarmest monthSeptemberColdest monthJuneWettest monthAprilDriest monthJuly

Mean daily temperature

18.3°C

Average daily high

23.5°C

Average daily low

14.0°C

Annual rainfall

2,949mm

Sunshine / day

9.8h

Mean relative humidity

74%

Average peak wind

8.5km/h

Seasonal range

1.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

0 d/yr

Rainy days (≥ 1 mm)

239 d/yr

Annual snowfall

0.0 cm

Average feels-like high

24.8 °C

Average feels-like low

13.9 °C

Average peak gust

29.3 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

17.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.63 · 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

32.8 °C

25 September 1997

Coldest day

8.6 °C

30 June 1968

Wettest day

181 mm

26 December 1977

Windiest day

17.8 km/h

20 August 1951

Strongest gust

57.6 km/h

28 December 2006

Hottest feels-like

33.2 °C

4 February 1998

Coldest feels-like

5.9 °C

12 July 1944

Sunniest day

12.0 h

6 December 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	28.8 °C1 March 2025	11.2 °C31 July 2025	19.2 °C	2,499 mm	0
2024	29.3 °C14 September 2024	10.7 °C26 June 2024	19.8 °C	3,206 mm	0
2023	30.1 °C24 August 2023	11.1 °C5 July 2023	19.5 °C	3,149 mm	2
2022	28.6 °C12 January 2022	11.3 °C5 July 2022	19.2 °C	2,678 mm	0
2021	28.9 °C8 November 2021	11.5 °C19 July 2021	19.3 °C	2,840 mm	0
2020	28.7 °C9 February 2020	10.9 °C17 July 2020	19.5 °C	2,734 mm	0
2019	27.9 °C13 February 2019	11.5 °C12 July 2019	19.2 °C	3,057 mm	0
2018	29.7 °C27 September 2018	10.8 °C8 July 2018	19.0 °C	2,857 mm	0
2017	28.3 °C23 October 2017	12.1 °C29 June 2017	19.2 °C	2,646 mm	0
2016	28.9 °C13 September 2016	11.5 °C1 July 2016	19.5 °C	2,437 mm	0
2015	28.9 °C28 August 2015	10.3 °C13 July 2015	19.2 °C	2,485 mm	0
2014	27.7 °C12 September 2014	11.6 °C13 July 2014	18.9 °C	3,002 mm	0
2013	28.5 °C22 January 2013	11.2 °C1 July 2013	18.8 °C	2,795 mm	0
2012	29.0 °C9 February 2012	10.5 °C5 July 2012	18.6 °C	2,837 mm	0
2011	29.4 °C7 February 2011	11.7 °C31 July 2011	18.5 °C	3,356 mm	0
2010	29.8 °C2 February 2010	11.5 °C14 August 2010	19.3 °C	2,705 mm	0
2009	28.1 °C25 September 2009	10.4 °C20 July 2009	18.8 °C	2,892 mm	0
2008	28.5 °C27 September 2008	8.8 °C9 July 2008	18.3 °C	2,440 mm	0
2007	29.4 °C25 September 2007	10.8 °C19 June 2007	18.5 °C	2,687 mm	0
2006	28.4 °C26 January 2006	10.6 °C17 June 2006	18.5 °C	3,264 mm	0
2005	30.3 °C24 February 2005	10.9 °C8 July 2005	18.9 °C	2,619 mm	2
2004	27.7 °C27 December 2004	10.0 °C10 July 2004	18.6 °C	2,645 mm	0
2003	28.2 °C4 February 2003	11.1 °C10 July 2003	18.7 °C	2,208 mm	0
2002	29.4 °C28 September 2002	11.5 °C15 June 2002	18.7 °C	2,460 mm	0
2001	27.7 °C4 March 2001	10.7 °C14 June 2001	18.0 °C	2,924 mm	0
2000	29.6 °C2 September 2000	11.6 °C25 July 2000	18.7 °C	1,978 mm	0
1999	28.3 °C20 February 1999	10.1 °C7 July 1999	18.2 °C	2,167 mm	0
1998	27.9 °C11 September 1998	11.6 °C25 July 1998	19.0 °C	2,406 mm	0
1997	32.8 °C25 September 1997	10.6 °C12 July 1997	18.6 °C	3,019 mm	7
1996	27.2 °C25 September 1996	11.2 °C8 August 1996	18.2 °C	2,786 mm	0
1995	28.0 °C24 August 1995	11.6 °C5 July 1995	18.5 °C	2,735 mm	0
1994	26.8 °C27 September 1994	10.4 °C8 July 1994	18.3 °C	3,047 mm	0
1993	27.9 °C26 September 1993	11.4 °C12 July 1993	18.4 °C	2,608 mm	0
1992	26.7 °C12 March 1992	9.4 °C16 July 1992	18.2 °C	2,960 mm	0
1991	28.0 °C21 September 1991	10.1 °C21 July 1991	18.2 °C	2,989 mm	0
1990	26.7 °C10 January 1990	9.9 °C27 July 1990	18.5 °C	2,944 mm	0
1989	27.2 °C3 March 1989	10.2 °C24 June 1989	18.1 °C	2,999 mm	0
1988	27.5 °C2 March 1988	11.1 °C29 June 1988	18.4 °C	3,156 mm	0
1987	28.0 °C6 August 1987	10.9 °C23 June 1987	18.8 °C	3,452 mm	0
1986	27.8 °C25 August 1986	10.4 °C20 July 1986	18.2 °C	3,576 mm	0
1985	26.7 °C8 October 1985	9.9 °C30 July 1985	17.9 °C	3,183 mm	0
1984	27.3 °C21 February 1984	11.4 °C27 April 1984	18.0 °C	3,080 mm	0
1983	28.1 °C27 February 1983	10.2 °C20 July 1983	18.5 °C	2,929 mm	0
1982	28.7 °C10 September 1982	10.8 °C11 July 1982	18.3 °C	3,112 mm	0
1981	27.8 °C14 February 1981	10.9 °C11 June 1981	18.1 °C	3,059 mm	0
1980	28.4 °C25 February 1980	11.7 °C5 June 1980	18.3 °C	2,913 mm	0
1979	29.6 °C2 October 1979	10.7 °C16 June 1979	18.4 °C	2,634 mm	0
1978	27.6 °C31 January 1978	10.1 °C13 June 1978	18.0 °C	3,220 mm	0
1977	27.5 °C18 August 1977	10.3 °C19 June 1977	18.1 °C	3,603 mm	0
1976	26.8 °C13 September 1976	9.8 °C26 June 1976	17.6 °C	3,418 mm	0
1975	27.0 °C22 February 1975	8.7 °C30 July 1975	17.4 °C	3,744 mm	0
1974	27.6 °C22 August 1974	9.9 °C26 July 1974	17.5 °C	3,041 mm	0
1973	28.1 °C25 October 1973	9.8 °C29 June 1973	18.1 °C	3,049 mm	0
1972	27.0 °C20 September 1972	9.4 °C1 July 1972	17.5 °C	3,822 mm	0
1971	27.2 °C4 March 1971	10.2 °C11 June 1971	17.5 °C	3,360 mm	0
1970	27.3 °C8 October 1970	9.9 °C27 July 1970	18.0 °C	2,934 mm	0
1969	28.0 °C24 August 1969	10.4 °C23 June 1969	18.2 °C	2,907 mm	0
1968	27.3 °C31 August 1968	8.6 °C30 June 1968	17.7 °C	3,416 mm	0
1967	28.4 °C5 September 1967	10.2 °C3 August 1967	17.8 °C	3,376 mm	0
1966	26.8 °C5 August 1966	10.2 °C28 June 1966	17.8 °C	3,185 mm	0
1965	27.7 °C12 October 1965	9.1 °C14 June 1965	17.7 °C	3,013 mm	0
1964	26.3 °C9 March 1964	9.9 °C11 July 1964	17.4 °C	3,297 mm	0
1963	28.0 °C12 September 1963	11.2 °C9 July 1963	17.7 °C	3,422 mm	0
1962	26.1 °C2 October 1962	10.0 °C9 July 1962	17.3 °C	3,688 mm	0
1961	27.1 °C6 June 1961	8.8 °C13 June 1961	17.6 °C	3,488 mm	0
1960	27.3 °C11 December 1960	8.8 °C31 July 1960	18.0 °C	3,123 mm	0
1959	27.7 °C17 March 1959	10.8 °C23 June 1959	18.1 °C	3,411 mm	0
1958	28.1 °C1 November 1958	10.5 °C20 July 1958	18.3 °C	3,052 mm	0
1957	29.0 °C23 September 1957	10.8 °C6 July 1957	18.2 °C	3,037 mm	0
1956	27.3 °C16 October 1956	9.9 °C26 June 1956	17.4 °C	2,858 mm	0
1955	26.0 °C11 October 1955	8.9 °C15 June 1955	17.4 °C	3,178 mm	0
1954	26.7 °C23 October 1954	10.1 °C19 July 1954	17.8 °C	2,579 mm	0
1953	28.0 °C7 September 1953	9.5 °C6 July 1953	17.6 °C	3,593 mm	0
1952	28.2 °C30 August 1952	11.2 °C5 June 1952	18.1 °C	3,030 mm	0
1951	28.0 °C1 October 1951	10.1 °C4 July 1951	17.9 °C	3,798 mm	0
1950	26.1 °C13 September 1950	9.1 °C3 June 1950	17.5 °C	2,960 mm	0
1949	29.2 °C22 August 1949	10.5 °C28 July 1949	18.1 °C	2,882 mm	0
1948	27.3 °C20 September 1948	10.8 °C1 June 1948	18.0 °C	2,703 mm	0
1947	29.2 °C21 September 1947	11.2 °C22 July 1947	18.2 °C	2,588 mm	0
1946	28.3 °C27 August 1946	10.6 °C25 June 1946	18.0 °C	3,011 mm	0
1945	29.1 °C19 September 1945	10.1 °C24 May 1945	18.1 °C	2,400 mm	0
1944	31.3 °C21 September 1944	8.9 °C12 July 1944	18.2 °C	2,454 mm	2
1943	27.8 °C12 October 1943	9.7 °C10 June 1943	17.8 °C	2,186 mm	0
1942	30.1 °C1 October 1942	10.3 °C26 July 1942	18.2 °C	2,124 mm	1
1941	27.8 °C19 October 1941	10.3 °C28 May 1941	18.0 °C	2,380 mm	0
1940	28.4 °C21 August 1940	10.7 °C30 June 1940	17.6 °C	3,086 mm	0

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

24.1 °C

+0.6 °C

Hot days (≥ 30 °C)

0 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2499 mm

-450 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.5 °C	+1.1 °C	214 mm	-60 mm
Feb	25.5 °C	+1.8 °C	151 mm	-136 mm
Mar	24.5 °C	+1.1 °C	303 mm	-74 mm
Apr	23.7 °C	+0.9 °C	400 mm	+1 mm
May	23.3 °C	+0.5 °C	243 mm	+7 mm
Jun	23.7 °C	+0.5 °C	106 mm	+41 mm
Jul	23.6 °C	+0.1 °C	51 mm	+17 mm
Aug	23.6 °C	-0.8 °C	145 mm	+73 mm
Sep	25.2 °C	+0.5 °C	166 mm	-10 mm
Oct	23.9 °C	0.0 °C	393 mm	+63 mm
Nov	24.0 °C	+1.2 °C	125 mm	-260 mm
Dec	23.5 °C	+0.5 °C	205 mm	-111 mm

The year's extremes

Hottest day

28.8 °C

1 Mar 2025

Coldest day

11.2 °C

31 Jul 2025

Wettest day

39.4 mm

4 Oct 2025

Windiest day

13.9 km/h

6 Aug 2025

Strongest gust

44.6 km/h

26 Nov 2025

Hottest feels-like

30.9 °C

1 Mar 2025

Coldest feels-like

9.4 °C

31 Jul 2025

Sunniest day

12.0 h

1 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 Bubanza?

Bubanza has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 18.3 °C and it receives 2,949 mm of precipitation per year.

What is the hottest day ever recorded in Bubanza?

The hottest day measured in Bubanza between 1940 and 2025 was 25 September 1997, reaching 32.8 °C.

What is the coldest day in Bubanza?

The coldest day measured in Bubanza between 1940 and 2025 was 30 June 1968, at 8.6 °C.

Does it snow in Bubanza?

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

Has the climate of Bubanza warmed?

Yes: Bubanza warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bubanza?

The wettest day measured in Bubanza between 1940 and 2025 was 26 December 1977, with 181 mm of rain in 24 hours.

What was the windiest day in Bubanza?

The windiest day measured in Bubanza between 1940 and 2025 was 20 August 1951, with winds reaching 17.8 km/h.

What is the warmest month in Bubanza?

The warmest month in Bubanza is September (19.1 °C on average); the coldest is June (17.9 °C).

How much does it rain in Bubanza?

Bubanza receives on average 2,949 mm of precipitation per year, spread over about 239 rainy days.

Is it sunny in Bubanza?

Bubanza gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Are there tropical nights in Bubanza?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bubanza.

What was the most extreme apparent temperature in Bubanza?

In Bubanza, between 1940 and 2025, the highest apparent temperature reached 33.2 °C on 4 February 1998, and the lowest was 5.9 °C on 12 July 1944.

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