Bāndarban climate — normals and trends

Q: What is the climate of Bāndarban?

Bāndarban has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.5 °C and it receives 2,092 mm of precipitation per year.

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

The hottest day measured in Bāndarban between 1940 and 2025 was 15 April 1956, reaching 41.8 °C.

Q: What is the coldest day in Bāndarban?

The coldest day measured in Bāndarban between 1940 and 2025 was 10 January 2013, at 7.4 °C.

Q: Does it snow in Bāndarban?

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

Q: Has the climate of Bāndarban warmed?

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

Q: What is the wettest day in Bāndarban?

The wettest day measured in Bāndarban between 1940 and 2025 was 11 June 2018, with 316 mm of rain in 24 hours.

Q: What was the windiest day in Bāndarban?

The windiest day measured in Bāndarban between 1940 and 2025 was 30 April 1991, with winds reaching 58.3 km/h.

Q: What is the warmest month in Bāndarban?

The warmest month in Bāndarban is May (27.6 °C on average); the coldest is January (18.8 °C).

Q: How much does it rain in Bāndarban?

Bāndarban receives on average 2,092 mm of precipitation per year, spread over about 179 rainy days.

Q: Is it sunny in Bāndarban?

Bāndarban gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Bāndarban (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.5 °C and it receives 2,092 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 (27.6 °C on average) and the coldest is January (18.8 °C). Rainfall peaks in June.

Bāndarban averages 0 frost days, 180 hot days (≥ 30 °C) and 179 rainy days per year.

Bāndarban 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 15 April 1956) and the coldest 7.4 °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

BāndarbanChittagong

coords: 22.20°, 92.22°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthJuneDriest monthJanuary

Mean daily temperature

24.5°C

Average daily high

29.7°C

Average daily low

20.6°C

Annual rainfall

2,092mm

Sunshine / day

9.2h

Mean relative humidity

80%

Average peak wind

10.9km/h

Seasonal range

8.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

180 d/yr

Rainy days (≥ 1 mm)

179 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.6 °C

Average feels-like low

23.4 °C

Average peak gust

29.3 km/h

Tropical nights (≥ 20 °C)

236 d/yr

Solar radiation

17.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.70 · 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

15 April 1956

Coldest day

7.4 °C

10 January 2013

Wettest day

316 mm

11 June 2018

Windiest day

58.3 km/h

30 April 1991

Strongest gust

153.7 km/h

30 April 1991

Hottest feels-like

45.3 °C

27 May 2017

Coldest feels-like

5.6 °C

10 January 2013

Sunniest day

12.8 h

7 June 1986

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.3 °C10 May 2025	12.0 °C30 January 2025	25.6 °C	1,814 mm	251
2024	39.6 °C14 April 2024	10.8 °C30 January 2024	25.9 °C	2,326 mm	249
2023	41.3 °C8 May 2023	11.2 °C20 January 2023	26.0 °C	1,662 mm	256
2022	38.2 °C28 April 2022	10.6 °C1 February 2022	25.8 °C	1,313 mm	268
2021	40.0 °C25 April 2021	8.7 °C1 February 2021	25.8 °C	1,830 mm	260
2020	38.5 °C14 March 2020	9.2 °C27 January 2020	25.3 °C	1,859 mm	235
2019	41.1 °C24 April 2019	11.2 °C5 January 2019	25.8 °C	1,453 mm	248
2018	37.6 °C25 April 2018	9.9 °C13 January 2018	24.9 °C	1,893 mm	233
2017	39.2 °C27 May 2017	10.3 °C14 January 2017	25.3 °C	2,136 mm	220
2016	39.0 °C11 May 2016	10.0 °C27 January 2016	25.4 °C	2,262 mm	233
2015	38.1 °C14 May 2015	10.7 °C2 February 2015	25.2 °C	2,546 mm	221
2014	40.7 °C22 April 2014	10.9 °C9 January 2014	25.4 °C	1,286 mm	235
2013	37.0 °C16 March 2013	7.4 °C10 January 2013	25.1 °C	1,941 mm	211
2012	37.3 °C27 May 2012	9.5 °C17 January 2012	25.0 °C	1,749 mm	218
2011	36.8 °C19 April 2011	8.9 °C19 January 2011	24.8 °C	2,141 mm	205
2010	37.8 °C17 May 2010	10.8 °C31 December 2010	25.5 °C	2,126 mm	227
2009	37.1 °C14 April 2009	10.5 °C30 December 2009	25.4 °C	1,926 mm	221
2008	38.1 °C22 April 2008	10.3 °C15 February 2008	24.9 °C	2,020 mm	195
2007	38.7 °C1 May 2007	10.2 °C19 January 2007	24.7 °C	2,614 mm	173
2006	37.5 °C30 March 2006	11.2 °C13 January 2006	25.1 °C	1,696 mm	212
2005	37.8 °C20 April 2005	11.0 °C11 January 2005	25.3 °C	1,776 mm	216
2004	36.8 °C4 May 2004	10.3 °C29 January 2004	24.8 °C	2,095 mm	192
2003	37.3 °C7 April 2003	9.8 °C23 January 2003	25.0 °C	1,807 mm	218
2002	36.1 °C3 May 2002	11.9 °C27 January 2002	25.0 °C	2,002 mm	207
2001	37.7 °C5 April 2001	9.4 °C13 January 2001	24.8 °C	2,094 mm	204
2000	37.2 °C11 April 2000	10.6 °C19 January 2000	24.4 °C	2,125 mm	175
1999	37.0 °C18 April 1999	11.0 °C13 January 1999	25.0 °C	1,953 mm	196
1998	36.7 °C13 May 1998	10.5 °C4 January 1998	24.9 °C	2,193 mm	204
1997	36.7 °C17 May 1997	8.1 °C9 February 1997	24.1 °C	1,891 mm	169
1996	35.8 °C21 March 1996	11.3 °C1 February 1996	24.5 °C	2,455 mm	172
1995	38.7 °C3 April 1995	8.8 °C5 January 1995	25.0 °C	2,142 mm	195
1994	36.2 °C28 April 1994	10.9 °C19 December 1994	24.6 °C	1,888 mm	173
1993	35.7 °C6 April 1993	9.1 °C27 January 1993	24.1 °C	2,230 mm	167
1992	37.1 °C25 April 1992	10.4 °C26 December 1992	24.2 °C	2,112 mm	175
1991	37.5 °C18 March 1991	10.8 °C31 December 1991	24.4 °C	2,296 mm	163
1990	35.8 °C11 May 1990	10.4 °C12 January 1990	24.4 °C	2,217 mm	156
1989	36.5 °C27 March 1989	8.7 °C13 January 1989	24.2 °C	1,763 mm	177
1988	37.1 °C7 April 1988	10.9 °C28 January 1988	24.8 °C	1,902 mm	189
1987	36.5 °C13 May 1987	10.6 °C5 January 1987	24.6 °C	2,003 mm	181
1986	37.1 °C5 April 1986	11.2 °C2 January 1986	24.7 °C	1,839 mm	186
1985	35.4 °C5 April 1985	10.7 °C19 January 1985	24.4 °C	1,737 mm	175
1984	37.7 °C14 April 1984	10.7 °C19 January 1984	24.2 °C	2,068 mm	162
1983	35.3 °C18 April 1983	9.8 °C29 December 1983	24.1 °C	2,370 mm	155
1982	38.9 °C23 May 1982	10.5 °C18 January 1982	24.4 °C	1,676 mm	177
1981	34.4 °C26 February 1981	11.3 °C5 January 1981	24.4 °C	1,726 mm	197
1980	37.9 °C7 April 1980	10.8 °C11 January 1980	24.7 °C	1,671 mm	183
1979	37.6 °C25 April 1979	10.3 °C3 January 1979	25.1 °C	1,748 mm	218
1978	38.0 °C10 April 1978	9.2 °C5 January 1978	24.3 °C	1,974 mm	191
1977	36.7 °C24 March 1977	9.7 °C5 January 1977	24.0 °C	1,929 mm	146
1976	37.1 °C20 March 1976	9.1 °C13 December 1976	24.2 °C	2,360 mm	178
1975	37.3 °C6 May 1975	8.2 °C22 January 1975	24.0 °C	2,398 mm	161
1974	35.8 °C10 March 1974	10.2 °C14 January 1974	23.9 °C	2,484 mm	139
1973	38.9 °C25 March 1973	11.4 °C4 January 1973	24.7 °C	2,458 mm	172
1972	36.8 °C14 May 1972	9.8 °C19 January 1972	24.5 °C	1,583 mm	175
1971	36.1 °C23 March 1971	9.2 °C29 December 1971	23.7 °C	2,526 mm	123
1970	36.2 °C4 May 1970	8.9 °C30 January 1970	24.3 °C	2,414 mm	163
1969	38.1 °C31 March 1969	9.5 °C17 January 1969	24.5 °C	2,189 mm	194
1968	37.7 °C8 May 1968	8.9 °C5 February 1968	24.1 °C	2,241 mm	139
1967	35.9 °C11 April 1967	9.2 °C31 January 1967	24.0 °C	2,367 mm	145
1966	37.0 °C16 May 1966	10.4 °C25 December 1966	24.0 °C	2,660 mm	147
1965	35.6 °C1 May 1965	8.8 °C10 January 1965	23.8 °C	3,267 mm	128
1964	37.8 °C26 March 1964	8.6 °C19 January 1964	24.3 °C	2,020 mm	171
1963	36.3 °C7 April 1963	9.5 °C12 January 1963	24.1 °C	2,817 mm	143
1962	37.0 °C29 March 1962	8.5 °C18 January 1962	24.2 °C	2,067 mm	174
1961	37.7 °C14 April 1961	9.0 °C18 December 1961	24.2 °C	1,943 mm	157
1960	41.5 °C30 April 1960	9.3 °C30 January 1960	24.5 °C	2,481 mm	164
1959	37.1 °C8 April 1959	10.0 °C2 January 1959	23.8 °C	2,378 mm	112
1958	37.3 °C28 March 1958	10.2 °C28 December 1958	24.7 °C	2,154 mm	167
1957	38.3 °C11 April 1957	10.4 °C29 December 1957	24.4 °C	1,599 mm	177
1956	41.8 °C15 April 1956	9.6 °C26 January 1956	24.2 °C	2,277 mm	164
1955	37.6 °C12 March 1955	9.1 °C26 December 1955	24.3 °C	1,866 mm	169
1954	37.1 °C19 April 1954	9.8 °C16 January 1954	24.2 °C	1,943 mm	158
1953	34.7 °C1 April 1953	9.1 °C1 January 1953	23.7 °C	2,054 mm	140
1952	35.5 °C14 April 1952	9.6 °C31 December 1952	23.8 °C	2,051 mm	145
1951	35.3 °C13 March 1951	9.8 °C26 January 1951	23.7 °C	2,808 mm	110
1950	37.2 °C7 April 1950	9.6 °C14 February 1950	24.0 °C	2,534 mm	124
1949	33.7 °C24 March 1949	10.3 °C24 December 1949	23.4 °C	3,603 mm	104
1948	35.6 °C14 March 1948	10.4 °C29 December 1948	23.9 °C	2,404 mm	122
1947	39.8 °C10 May 1947	10.0 °C18 January 1947	24.5 °C	1,956 mm	167
1946	38.9 °C20 March 1946	10.2 °C2 January 1946	24.1 °C	2,277 mm	145
1945	37.8 °C27 March 1945	9.9 °C26 December 1945	24.2 °C	1,886 mm	156
1944	38.2 °C21 March 1944	11.6 °C20 January 1944	24.3 °C	1,939 mm	163
1943	34.9 °C6 April 1943	10.0 °C23 January 1943	23.7 °C	1,505 mm	146
1942	37.0 °C7 March 1942	10.1 °C24 January 1942	23.8 °C	2,092 mm	136
1941	37.4 °C22 March 1941	10.0 °C14 January 1941	23.6 °C	2,116 mm	144
1940	35.4 °C24 April 1940	10.0 °C10 January 1940	23.7 °C	1,898 mm	136

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)

251 d/yr

+71

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1814 mm

-278 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.0 °C	+2.0 °C	0 mm	-8 mm
Feb	31.5 °C	+2.3 °C	1 mm	-14 mm
Mar	34.6 °C	+1.9 °C	4 mm	-35 mm
Apr	34.5 °C	+1.2 °C	39 mm	-46 mm
May	33.7 °C	+1.3 °C	199 mm	-12 mm
Jun	30.9 °C	+0.7 °C	517 mm	+89 mm
Jul	30.0 °C	+0.6 °C	382 mm	-31 mm
Aug	31.1 °C	+1.4 °C	253 mm	-91 mm
Sep	31.8 °C	+1.7 °C	250 mm	-39 mm
Oct	32.1 °C	+2.2 °C	111 mm	-76 mm
Nov	29.7 °C	+1.5 °C	59 mm	+5 mm
Dec	27.2 °C	+1.3 °C	0 mm	-19 mm

The year's extremes

Hottest day

38.3 °C

10 May 2025

Coldest day

12.0 °C

30 Jan 2025

Wettest day

91.7 mm

18 Jun 2025

Windiest day

26.0 km/h

30 May 2025

Strongest gust

71.3 km/h

29 May 2025

Hottest feels-like

44.3 °C

11 May 2025

Coldest feels-like

11.5 °C

30 Jan 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 Bāndarban?

Bāndarban has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.5 °C and it receives 2,092 mm of precipitation per year.

What is the hottest day ever recorded in Bāndarban?

The hottest day measured in Bāndarban between 1940 and 2025 was 15 April 1956, reaching 41.8 °C.

What is the coldest day in Bāndarban?

The coldest day measured in Bāndarban between 1940 and 2025 was 10 January 2013, at 7.4 °C.

Does it snow in Bāndarban?

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

Has the climate of Bāndarban warmed?

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

What is the wettest day in Bāndarban?

The wettest day measured in Bāndarban between 1940 and 2025 was 11 June 2018, with 316 mm of rain in 24 hours.

What was the windiest day in Bāndarban?

The windiest day measured in Bāndarban between 1940 and 2025 was 30 April 1991, with winds reaching 58.3 km/h.

What is the warmest month in Bāndarban?

The warmest month in Bāndarban is May (27.6 °C on average); the coldest is January (18.8 °C).

How much does it rain in Bāndarban?

Bāndarban receives on average 2,092 mm of precipitation per year, spread over about 179 rainy days.

Is it sunny in Bāndarban?

Bāndarban gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Are there tropical nights in Bāndarban?

Yes: Bāndarban has on average 236 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bāndarban?

In Bāndarban, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 27 May 2017, and the lowest was 5.6 °C on 10 January 2013.

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