Bolenge climate — normals and trends

Q: What is the climate of Bolenge?

Bolenge has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,883 mm of precipitation per year.

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

The hottest day measured in Bolenge between 1940 and 2025 was 1 September 1950, reaching 38.4 °C.

Q: What is the coldest day in Bolenge?

The coldest day measured in Bolenge between 1940 and 2025 was 13 January 2015, at 16.8 °C.

Q: Does it snow in Bolenge?

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

Q: Has the climate of Bolenge warmed?

Yes: Bolenge warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bolenge?

The wettest day measured in Bolenge between 1940 and 2025 was 9 November 2024, with 171 mm of rain in 24 hours.

Q: What was the windiest day in Bolenge?

The windiest day measured in Bolenge between 1940 and 2025 was 19 February 1999, with winds reaching 22.7 km/h.

Q: What is the warmest month in Bolenge?

The warmest month in Bolenge is February (26.0 °C on average); the coldest is September (24.7 °C).

Q: How much does it rain in Bolenge?

Bolenge receives on average 1,883 mm of precipitation per year, spread over about 270 rainy days.

Q: Is it sunny in Bolenge?

Bolenge gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Bolenge (Democratic Republic of Congo) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 1,883 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 February (26.0 °C on average) and the coldest is September (24.7 °C). Rainfall peaks in October.

Bolenge averages 0 frost days, 162 hot days (≥ 30 °C) and 270 rainy days per year.

Bolenge has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.4 °C (on 1 September 1950) and the coldest 16.8 °C (on 13 January 2015).

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

BolengeÉquateur Province

coords: 0.00°, 18.22°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthFebruaryColdest monthSeptemberWettest monthOctoberDriest monthJuly

Mean daily temperature

25.3°C

Average daily high

29.7°C

Average daily low

22.6°C

Annual rainfall

1,883mm

Sunshine / day

9.4h

Mean relative humidity

86%

Average peak wind

8.5km/h

Seasonal range

1.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

162 d/yr

Rainy days (≥ 1 mm)

270 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.5 °C

Average feels-like low

26.8 °C

Average peak gust

24.2 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

17.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.65 · 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

38.4 °C

1 September 1950

Coldest day

16.8 °C

13 January 2015

Wettest day

171 mm

9 November 2024

Windiest day

22.7 km/h

19 February 1999

Strongest gust

52.2 km/h

19 February 1999

Hottest feels-like

44.6 °C

18 March 2024

Coldest feels-like

15.9 °C

9 August 1950

Sunniest day

12.0 h

17 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.6 °C28 February 2025	20.3 °C17 August 2025	26.4 °C	1,581 mm	255
2024	38.2 °C29 March 2024	21.2 °C15 November 2024	27.1 °C	1,365 mm	308
2023	37.2 °C6 March 2023	20.5 °C28 January 2023	26.3 °C	1,692 mm	248
2022	35.8 °C28 February 2022	20.7 °C23 March 2022	26.1 °C	1,495 mm	230
2021	37.7 °C1 March 2021	20.6 °C19 February 2021	26.3 °C	1,471 mm	244
2020	35.8 °C27 January 2020	19.3 °C26 January 2020	26.3 °C	1,565 mm	257
2019	35.2 °C12 February 2019	21.3 °C27 August 2019	26.3 °C	1,458 mm	262
2018	35.9 °C1 April 2018	19.4 °C6 January 2018	26.1 °C	1,369 mm	251
2017	35.7 °C27 March 2017	21.0 °C20 September 2017	26.0 °C	1,596 mm	228
2016	36.0 °C4 February 2016	19.3 °C31 January 2016	26.4 °C	1,424 mm	246
2015	34.8 °C16 January 2015	16.8 °C13 January 2015	26.0 °C	1,401 mm	231
2014	34.7 °C22 February 2014	20.9 °C15 August 2014	25.8 °C	1,608 mm	215
2013	36.6 °C23 February 2013	19.5 °C17 December 2013	25.9 °C	1,486 mm	216
2012	35.5 °C3 April 2012	21.0 °C12 January 2012	25.8 °C	1,505 mm	220
2011	35.5 °C8 May 2011	18.8 °C19 January 2011	25.7 °C	1,465 mm	225
2010	35.0 °C1 February 2010	21.1 °C13 September 2010	26.1 °C	1,581 mm	218
2009	34.9 °C1 February 2009	21.5 °C2 January 2009	25.8 °C	1,740 mm	205
2008	34.7 °C4 March 2008	19.4 °C29 January 2008	25.6 °C	1,543 mm	191
2007	36.5 °C20 January 2007	21.1 °C6 August 2007	25.7 °C	1,611 mm	200
2006	34.6 °C8 February 2006	21.2 °C30 September 2006	25.6 °C	1,645 mm	180
2005	35.0 °C11 February 2005	20.6 °C9 January 2005	25.9 °C	1,551 mm	210
2004	34.5 °C10 February 2004	21.4 °C30 June 2004	25.6 °C	1,521 mm	179
2003	35.6 °C7 February 2003	21.2 °C4 July 2003	25.6 °C	1,602 mm	179
2002	34.7 °C23 March 2002	18.0 °C14 January 2002	25.6 °C	1,593 mm	178
2001	34.1 °C9 May 2001	19.8 °C10 January 2001	25.3 °C	1,589 mm	171
2000	35.2 °C3 March 2000	20.9 °C6 July 2000	25.2 °C	1,747 mm	153
1999	34.5 °C6 February 1999	20.9 °C23 August 1999	25.2 °C	2,099 mm	164
1998	36.1 °C3 February 1998	21.1 °C16 January 1998	26.1 °C	1,767 mm	209
1997	34.2 °C21 February 1997	20.4 °C1 February 1997	25.5 °C	1,905 mm	182
1996	34.1 °C25 February 1996	21.1 °C9 August 1996	25.2 °C	1,960 mm	159
1995	34.1 °C8 March 1995	21.3 °C6 January 1995	25.4 °C	2,069 mm	175
1994	34.7 °C22 April 1994	18.6 °C18 January 1994	25.4 °C	2,201 mm	167
1993	34.1 °C2 May 1993	19.9 °C9 February 1993	25.4 °C	1,990 mm	166
1992	34.9 °C22 February 1992	19.2 °C5 January 1992	25.2 °C	1,923 mm	134
1991	34.3 °C12 February 1991	20.2 °C26 December 1991	25.3 °C	2,108 mm	155
1990	34.4 °C16 February 1990	20.8 °C23 July 1990	25.5 °C	2,097 mm	170
1989	35.3 °C26 January 1989	18.4 °C18 January 1989	25.3 °C	1,640 mm	167
1988	36.1 °C26 February 1988	21.2 °C2 July 1988	25.4 °C	2,354 mm	160
1987	35.6 °C21 March 1987	20.7 °C2 January 1987	25.7 °C	2,138 mm	197
1986	34.7 °C3 May 1986	20.3 °C19 July 1986	25.3 °C	2,167 mm	164
1985	35.3 °C8 March 1985	20.6 °C17 July 1985	25.0 °C	2,103 mm	135
1984	34.2 °C16 February 1984	20.3 °C9 January 1984	25.0 °C	1,853 mm	142
1983	35.8 °C7 February 1983	19.1 °C29 January 1983	25.6 °C	1,839 mm	166
1982	35.4 °C20 February 1982	18.7 °C9 February 1982	25.2 °C	2,158 mm	147
1981	34.8 °C15 April 1981	20.1 °C27 August 1981	25.2 °C	2,226 mm	153
1980	34.4 °C16 March 1980	18.3 °C28 December 1980	25.1 °C	2,172 mm	128
1979	34.5 °C19 April 1979	20.6 °C29 July 1979	25.3 °C	2,124 mm	172
1978	34.5 °C27 February 1978	19.8 °C10 January 1978	25.0 °C	2,256 mm	140
1977	34.3 °C20 May 1977	18.5 °C28 December 1977	25.0 °C	2,265 mm	131
1976	33.2 °C25 March 1976	19.9 °C25 January 1976	24.6 °C	2,236 mm	99
1975	33.4 °C16 March 1975	20.4 °C18 November 1975	24.7 °C	2,081 mm	105
1974	33.2 °C19 March 1974	20.0 °C3 July 1974	24.6 °C	2,311 mm	108
1973	34.8 °C2 March 1973	20.0 °C23 December 1973	25.3 °C	2,307 mm	157
1972	35.1 °C21 December 1972	19.8 °C26 June 1972	25.0 °C	2,072 mm	139
1971	35.1 °C4 March 1971	18.6 °C23 December 1971	24.8 °C	2,001 mm	146
1970	35.1 °C2 January 1970	18.9 °C2 July 1970	25.1 °C	2,135 mm	164
1969	35.0 °C4 February 1969	19.9 °C29 January 1969	25.0 °C	2,472 mm	129
1968	33.5 °C25 February 1968	20.2 °C18 January 1968	24.8 °C	2,188 mm	127
1967	34.1 °C20 February 1967	19.5 °C22 September 1967	24.6 °C	2,602 mm	122
1966	34.2 °C4 July 1966	20.9 °C25 December 1966	25.2 °C	1,932 mm	148
1965	34.2 °C21 July 1965	20.5 °C6 February 1965	25.0 °C	1,955 mm	128
1964	33.4 °C19 February 1964	20.6 °C28 October 1964	25.1 °C	1,797 mm	135
1963	33.4 °C18 February 1963	20.7 °C22 November 1963	24.9 °C	1,942 mm	110
1962	33.3 °C20 January 1962	20.5 °C22 June 1962	24.6 °C	2,220 mm	72
1961	32.7 °C7 March 1961	20.5 °C8 July 1961	24.7 °C	2,205 mm	101
1960	33.1 °C28 March 1960	20.7 °C24 February 1960	24.9 °C	2,253 mm	124
1959	34.1 °C9 March 1959	20.2 °C13 August 1959	25.0 °C	1,993 mm	127
1958	35.1 °C2 March 1958	19.9 °C28 June 1958	25.2 °C	1,819 mm	128
1957	34.8 °C13 February 1957	17.7 °C12 January 1957	24.9 °C	1,847 mm	112
1956	33.7 °C1 March 1956	20.4 °C3 January 1956	24.8 °C	1,930 mm	101
1955	33.4 °C19 February 1955	20.6 °C14 September 1955	24.5 °C	2,152 mm	67
1954	33.4 °C3 March 1954	20.7 °C10 July 1954	24.9 °C	1,819 mm	112
1953	33.5 °C26 March 1953	20.6 °C28 June 1953	24.9 °C	2,485 mm	88
1952	34.0 °C23 March 1952	21.2 °C25 September 1952	24.9 °C	2,437 mm	108
1951	32.5 °C16 February 1951	20.7 °C14 February 1951	24.9 °C	2,138 mm	95
1950	38.4 °C1 September 1950	17.0 °C18 July 1950	25.4 °C	1,632 mm	175
1949	34.3 °C17 February 1949	21.1 °C20 October 1949	25.4 °C	1,335 mm	162
1948	33.2 °C21 March 1948	21.1 °C3 December 1948	24.7 °C	2,150 mm	82
1947	34.5 °C23 July 1947	20.6 °C7 July 1947	25.1 °C	1,712 mm	137
1946	34.6 °C23 February 1946	21.0 °C7 January 1946	25.0 °C	1,766 mm	132
1945	33.8 °C28 December 1945	20.3 °C5 December 1945	24.9 °C	1,745 mm	119
1944	34.3 °C9 February 1944	20.4 °C3 August 1944	25.2 °C	1,697 mm	166
1943	35.9 °C1 March 1943	19.5 °C6 July 1943	25.4 °C	1,511 mm	174
1942	32.4 °C5 February 1942	20.2 °C20 July 1942	24.8 °C	1,824 mm	125
1941	34.1 °C9 March 1941	20.7 °C27 December 1941	25.2 °C	1,653 mm	144
1940	32.7 °C25 December 1940	20.8 °C11 December 1940	24.7 °C	1,977 mm	99

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

30.9 °C

+1.2 °C

Hot days (≥ 30 °C)

255 d/yr

+93

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1581 mm

-302 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.0 °C	+1.6 °C	50 mm	-62 mm
Feb	31.7 °C	+0.8 °C	73 mm	-61 mm
Mar	31.9 °C	+1.3 °C	159 mm	-15 mm
Apr	31.4 °C	+1.2 °C	151 mm	-19 mm
May	30.7 °C	+0.8 °C	171 mm	+18 mm
Jun	30.5 °C	+1.0 °C	101 mm	-0 mm
Jul	29.6 °C	+0.4 °C	77 mm	-21 mm
Aug	30.5 °C	+1.5 °C	69 mm	-92 mm
Sep	30.4 °C	+1.6 °C	243 mm	+40 mm
Oct	30.2 °C	+1.4 °C	231 mm	+5 mm
Nov	31.1 °C	+2.1 °C	172 mm	-34 mm
Dec	31.0 °C	+1.2 °C	86 mm	-60 mm

The year's extremes

Hottest day

35.6 °C

28 Feb 2025

Coldest day

20.3 °C

17 Aug 2025

Wettest day

53.7 mm

14 Sep 2025

Windiest day

17.2 km/h

14 Mar 2025

Strongest gust

39.2 km/h

14 Mar 2025

Hottest feels-like

43.4 °C

28 Sep 2025

Coldest feels-like

23.5 °C

17 Aug 2025

Sunniest day

12.0 h

17 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 Bolenge?

Bolenge has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,883 mm of precipitation per year.

What is the hottest day ever recorded in Bolenge?

The hottest day measured in Bolenge between 1940 and 2025 was 1 September 1950, reaching 38.4 °C.

What is the coldest day in Bolenge?

The coldest day measured in Bolenge between 1940 and 2025 was 13 January 2015, at 16.8 °C.

Does it snow in Bolenge?

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

Has the climate of Bolenge warmed?

Yes: Bolenge warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bolenge?

The wettest day measured in Bolenge between 1940 and 2025 was 9 November 2024, with 171 mm of rain in 24 hours.

What was the windiest day in Bolenge?

The windiest day measured in Bolenge between 1940 and 2025 was 19 February 1999, with winds reaching 22.7 km/h.

What is the warmest month in Bolenge?

The warmest month in Bolenge is February (26.0 °C on average); the coldest is September (24.7 °C).

How much does it rain in Bolenge?

Bolenge receives on average 1,883 mm of precipitation per year, spread over about 270 rainy days.

Is it sunny in Bolenge?

Bolenge gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Are there tropical nights in Bolenge?

Yes: Bolenge has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bolenge?

In Bolenge, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 18 March 2024, and the lowest was 15.9 °C on 9 August 1950.

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