Karnaphuli climate — normals and trends

Q: What is the climate of Karnaphuli?

Karnaphuli has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.8 °C and it receives 1,953 mm of precipitation per year.

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

The hottest day measured in Karnaphuli between 1940 and 2025 was 30 April 1960, reaching 41.8 °C.

Q: What is the coldest day in Karnaphuli?

The coldest day measured in Karnaphuli between 1940 and 2025 was 10 January 2013, at 8.3 °C.

Q: Does it snow in Karnaphuli?

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

Q: Has the climate of Karnaphuli warmed?

Yes: Karnaphuli warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Karnaphuli?

The wettest day measured in Karnaphuli between 1940 and 2025 was 8 May 1948, with 257 mm of rain in 24 hours.

Q: What was the windiest day in Karnaphuli?

The windiest day measured in Karnaphuli between 1940 and 2025 was 30 April 1991, with winds reaching 50.1 km/h.

Q: What is the warmest month in Karnaphuli?

The warmest month in Karnaphuli is May (27.8 °C on average); the coldest is January (18.8 °C).

Q: How much does it rain in Karnaphuli?

Karnaphuli receives on average 1,953 mm of precipitation per year, spread over about 175 rainy days.

Q: Is it sunny in Karnaphuli?

Karnaphuli gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Karnaphuli (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.8 °C and it receives 1,953 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 May (27.8 °C on average) and the coldest is January (18.8 °C). Rainfall peaks in June.

Karnaphuli averages 0 frost days, 186 hot days (≥ 30 °C) and 175 rainy days per year.

Karnaphuli has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.8 °C (on 30 April 1960) and the coldest 8.3 °C (on 10 January 2013).

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

KarnaphuliChittagong

coords: 22.69°, 92.23°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthJuneDriest monthJanuary

Mean daily temperature

24.8°C

Average daily high

29.7°C

Average daily low

21.1°C

Annual rainfall

1,953mm

Sunshine / day

9.1h

Mean relative humidity

81%

Average peak wind

10.1km/h

Seasonal range

9.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

186 d/yr

Rainy days (≥ 1 mm)

175 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.7 °C

Average feels-like low

24.3 °C

Average peak gust

26.9 km/h

Tropical nights (≥ 20 °C)

241 d/yr

Solar radiation

16.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.69 · 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

41.8 °C

30 April 1960

Coldest day

8.3 °C

10 January 2013

Wettest day

257 mm

8 May 1948

Windiest day

50.1 km/h

30 April 1991

Strongest gust

139.3 km/h

30 April 1991

Hottest feels-like

45.9 °C

24 May 2021

Coldest feels-like

7.3 °C

17 January 1962

Sunniest day

12.9 h

8 June 1948

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.3 °C10 May 2025	12.6 °C10 February 2025	26.1 °C	1,661 mm	248
2024	39.9 °C13 April 2024	11.8 °C24 January 2024	26.2 °C	2,105 mm	254
2023	40.8 °C8 May 2023	11.4 °C20 January 2023	26.3 °C	1,501 mm	258
2022	38.2 °C28 April 2022	11.4 °C31 January 2022	26.1 °C	1,365 mm	263
2021	40.4 °C25 April 2021	9.9 °C1 February 2021	26.2 °C	1,641 mm	250
2020	37.8 °C14 April 2020	10.7 °C4 February 2020	25.6 °C	1,713 mm	233
2019	40.8 °C24 April 2019	11.8 °C5 January 2019	26.1 °C	1,185 mm	240
2018	37.2 °C25 April 2018	10.2 °C29 January 2018	25.3 °C	1,590 mm	228
2017	37.4 °C12 April 2017	10.7 °C15 January 2017	25.6 °C	2,008 mm	224
2016	38.5 °C11 May 2016	9.9 °C26 January 2016	25.8 °C	1,887 mm	227
2015	37.3 °C4 June 2015	10.5 °C2 February 2015	25.5 °C	2,476 mm	223
2014	40.5 °C20 April 2014	11.2 °C9 January 2014	25.7 °C	1,255 mm	236
2013	36.7 °C16 March 2013	8.3 °C10 January 2013	25.4 °C	1,858 mm	220
2012	37.2 °C1 April 2012	10.1 °C26 January 2012	25.3 °C	1,534 mm	226
2011	36.4 °C16 April 2011	10.1 °C13 January 2011	25.2 °C	1,909 mm	208
2010	37.8 °C21 March 2010	11.2 °C12 January 2010	25.8 °C	2,052 mm	228
2009	37.9 °C13 April 2009	11.4 °C29 December 2009	25.8 °C	1,639 mm	236
2008	39.7 °C22 April 2008	10.8 °C15 February 2008	25.3 °C	1,776 mm	204
2007	39.0 °C1 May 2007	11.0 °C18 January 2007	25.0 °C	2,504 mm	185
2006	37.5 °C30 March 2006	11.3 °C13 January 2006	25.6 °C	1,486 mm	229
2005	38.0 °C20 April 2005	11.8 °C22 January 2005	25.7 °C	1,532 mm	216
2004	37.1 °C4 May 2004	11.0 °C29 January 2004	25.1 °C	2,007 mm	194
2003	37.4 °C13 May 2003	9.9 °C23 January 2003	25.2 °C	1,693 mm	211
2002	36.1 °C3 May 2002	12.3 °C26 January 2002	25.2 °C	1,812 mm	212
2001	37.5 °C24 April 2001	10.2 °C26 January 2001	25.1 °C	2,069 mm	210
2000	36.8 °C11 April 2000	10.8 °C19 January 2000	24.7 °C	2,009 mm	184
1999	37.1 °C27 April 1999	11.9 °C14 January 1999	25.4 °C	1,712 mm	208
1998	36.2 °C14 May 1998	10.5 °C4 January 1998	25.2 °C	2,143 mm	198
1997	35.4 °C16 May 1997	9.6 °C25 January 1997	24.4 °C	1,822 mm	172
1996	35.9 °C21 May 1996	11.3 °C21 January 1996	24.9 °C	2,224 mm	181
1995	37.5 °C23 March 1995	9.4 °C4 January 1995	25.2 °C	1,872 mm	203
1994	36.0 °C30 April 1994	11.9 °C19 December 1994	24.9 °C	1,854 mm	180
1993	35.2 °C6 April 1993	9.4 °C24 January 1993	24.4 °C	2,272 mm	162
1992	36.4 °C25 April 1992	11.9 °C5 January 1992	24.7 °C	1,741 mm	180
1991	36.6 °C18 March 1991	10.2 °C22 January 1991	24.7 °C	2,045 mm	169
1990	34.7 °C5 May 1990	10.7 °C11 January 1990	24.7 °C	2,090 mm	164
1989	36.2 °C23 April 1989	9.3 °C13 January 1989	24.6 °C	1,672 mm	186
1988	38.4 °C8 April 1988	10.7 °C28 January 1988	25.2 °C	1,767 mm	189
1987	36.5 °C13 May 1987	10.8 °C5 January 1987	25.0 °C	1,695 mm	193
1986	36.6 °C4 June 1986	11.3 °C24 January 1986	25.0 °C	1,658 mm	194
1985	35.5 °C5 April 1985	11.2 °C17 January 1985	24.7 °C	1,543 mm	190
1984	38.1 °C14 April 1984	10.5 °C19 January 1984	24.5 °C	1,974 mm	173
1983	35.0 °C18 April 1983	10.2 °C7 February 1983	24.4 °C	2,441 mm	154
1982	39.4 °C23 May 1982	11.1 °C2 January 1982	24.7 °C	1,474 mm	185
1981	34.8 °C27 April 1981	11.5 °C3 January 1981	24.7 °C	1,761 mm	189
1980	37.6 °C16 April 1980	11.0 °C1 February 1980	24.9 °C	1,584 mm	191
1979	37.6 °C31 May 1979	10.4 °C15 January 1979	25.3 °C	1,826 mm	209
1978	37.8 °C10 April 1978	9.0 °C7 January 1978	24.6 °C	1,827 mm	192
1977	36.9 °C24 March 1977	10.1 °C9 February 1977	24.4 °C	1,855 mm	159
1976	36.2 °C19 March 1976	10.4 °C16 January 1976	24.5 °C	2,237 mm	183
1975	37.5 °C6 May 1975	8.9 °C22 January 1975	24.4 °C	2,129 mm	167
1974	35.4 °C10 March 1974	10.8 °C26 January 1974	24.3 °C	2,257 mm	153
1973	38.7 °C25 March 1973	11.5 °C25 January 1973	25.0 °C	2,351 mm	186
1972	36.5 °C14 May 1972	10.5 °C19 January 1972	24.9 °C	1,586 mm	178
1971	35.8 °C23 March 1971	10.3 °C4 February 1971	24.1 °C	2,505 mm	131
1970	35.5 °C6 April 1970	9.7 °C5 January 1970	24.5 °C	2,226 mm	165
1969	38.0 °C5 April 1969	9.3 °C17 January 1969	24.8 °C	1,966 mm	204
1968	37.8 °C8 May 1968	9.1 °C5 February 1968	24.4 °C	2,090 mm	151
1967	36.1 °C8 April 1967	9.2 °C31 January 1967	24.4 °C	2,264 mm	155
1966	36.6 °C16 May 1966	11.1 °C29 December 1966	24.3 °C	2,520 mm	151
1965	35.5 °C1 May 1965	9.6 °C10 January 1965	24.2 °C	3,140 mm	130
1964	38.1 °C26 March 1964	9.4 °C20 January 1964	24.6 °C	1,984 mm	185
1963	36.0 °C30 March 1963	10.0 °C5 January 1963	24.4 °C	2,710 mm	152
1962	36.4 °C25 March 1962	8.5 °C17 January 1962	24.5 °C	2,007 mm	184
1961	36.2 °C14 April 1961	9.5 °C31 December 1961	24.6 °C	1,997 mm	171
1960	41.8 °C30 April 1960	9.9 °C25 January 1960	24.9 °C	2,497 mm	171
1959	36.5 °C8 April 1959	10.6 °C2 January 1959	24.2 °C	2,363 mm	116
1958	37.2 °C28 March 1958	11.0 °C12 February 1958	25.1 °C	2,004 mm	178
1957	38.9 °C11 April 1957	9.8 °C16 February 1957	24.7 °C	1,493 mm	189
1956	41.5 °C15 April 1956	9.7 °C26 January 1956	24.6 °C	2,103 mm	174
1955	37.1 °C12 March 1955	10.1 °C6 January 1955	24.6 °C	1,946 mm	178
1954	37.3 °C19 April 1954	10.2 °C25 January 1954	24.5 °C	1,872 mm	162
1953	34.1 °C14 August 1953	9.4 °C26 January 1953	24.0 °C	2,047 mm	153
1952	35.6 °C14 April 1952	10.3 °C31 December 1952	24.2 °C	1,878 mm	157
1951	34.9 °C15 March 1951	10.8 °C26 January 1951	24.1 °C	2,723 mm	119
1950	37.0 °C7 April 1950	10.5 °C14 February 1950	24.3 °C	2,517 mm	137
1949	33.4 °C13 July 1949	11.3 °C24 December 1949	23.8 °C	3,270 mm	119
1948	34.4 °C12 March 1948	11.8 °C29 December 1948	24.3 °C	2,373 mm	129
1947	39.5 °C10 May 1947	11.2 °C16 January 1947	24.9 °C	1,888 mm	164
1946	38.5 °C20 March 1946	11.7 °C2 January 1946	24.5 °C	2,053 mm	157
1945	37.2 °C29 March 1945	10.9 °C4 February 1945	24.6 °C	1,503 mm	165
1944	37.5 °C21 March 1944	11.7 °C21 January 1944	24.6 °C	1,529 mm	167
1943	35.2 °C6 April 1943	11.0 °C8 February 1943	24.2 °C	1,250 mm	167
1942	37.1 °C1 April 1942	11.1 °C2 February 1942	24.2 °C	1,968 mm	154
1941	37.0 °C22 March 1941	10.4 °C25 January 1941	24.0 °C	1,849 mm	156
1940	35.0 °C28 April 1940	10.9 °C24 January 1940	24.1 °C	1,789 mm	157

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

31.3 °C

+1.6 °C

Hot days (≥ 30 °C)

248 d/yr

+62

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1661 mm

-293 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.3 °C	+1.8 °C	0 mm	-8 mm
Feb	30.8 °C	+2.1 °C	2 mm	-15 mm
Mar	34.5 °C	+2.2 °C	1 mm	-49 mm
Apr	34.5 °C	+1.5 °C	35 mm	-73 mm
May	33.7 °C	+1.4 °C	230 mm	-3 mm
Jun	31.2 °C	+0.6 °C	491 mm	+94 mm
Jul	30.9 °C	+1.0 °C	356 mm	-2 mm
Aug	31.6 °C	+1.4 °C	202 mm	-97 mm
Sep	32.3 °C	+1.8 °C	190 mm	-57 mm
Oct	32.5 °C	+2.4 °C	83 mm	-86 mm
Nov	29.8 °C	+1.6 °C	69 mm	+21 mm
Dec	26.7 °C	+1.1 °C	0 mm	-18 mm

The year's extremes

Hottest day

38.3 °C

10 May 2025

Coldest day

12.6 °C

10 Feb 2025

Wettest day

86.2 mm

18 Jun 2025

Windiest day

28.5 km/h

30 May 2025

Strongest gust

68.0 km/h

30 May 2025

Hottest feels-like

44.2 °C

10 May 2025

Coldest feels-like

12.5 °C

10 Feb 2025

Sunniest day

12.6 h

7 Jun 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 Karnaphuli?

Karnaphuli has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.8 °C and it receives 1,953 mm of precipitation per year.

What is the hottest day ever recorded in Karnaphuli?

The hottest day measured in Karnaphuli between 1940 and 2025 was 30 April 1960, reaching 41.8 °C.

What is the coldest day in Karnaphuli?

The coldest day measured in Karnaphuli between 1940 and 2025 was 10 January 2013, at 8.3 °C.

Does it snow in Karnaphuli?

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

Has the climate of Karnaphuli warmed?

Yes: Karnaphuli warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Karnaphuli?

The wettest day measured in Karnaphuli between 1940 and 2025 was 8 May 1948, with 257 mm of rain in 24 hours.

What was the windiest day in Karnaphuli?

The windiest day measured in Karnaphuli between 1940 and 2025 was 30 April 1991, with winds reaching 50.1 km/h.

What is the warmest month in Karnaphuli?

The warmest month in Karnaphuli is May (27.8 °C on average); the coldest is January (18.8 °C).

How much does it rain in Karnaphuli?

Karnaphuli receives on average 1,953 mm of precipitation per year, spread over about 175 rainy days.

Is it sunny in Karnaphuli?

Karnaphuli gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Karnaphuli?

Yes: Karnaphuli has on average 241 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Karnaphuli?

In Karnaphuli, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 24 May 2021, and the lowest was 7.3 °C on 17 January 1962.

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