Bāndarban climate

Name: Bāndarban
Address: BD

Bāndarban is warmest in April, with average highs of 34 °C, and coldest in January, when nights average 14 °C. July is the wettest month (432 mm) and January the driest (7.2 mm). Figures are 1991–2020 climate normals.

Across a full year Bāndarban averages 2,072 mm of rain and 343 days above 25 °C.

Bangladesh · population 495,272 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month April 34 °C
Coldest month January 14 °C
Driest month January 7 mm
Wettest month July 432 mm
Least cloud January 17 % cloud
Hottest on record April 40 °C
Coldest on record January 8.9 °C

What to expectBāndarban through the year

Bāndarban has a clear annual cycle: average daily highs run from 26 °C in January to 34 °C in April, a swing of 8.5 °C in mean temperature across the year.

Counted across a normal year, 343 days a year reach 25 °C, 181 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in April.

Rain is strongly seasonal. July averages 432 mm against 7 mm in January — 60 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.9 °C	7 mm	17 %
February	29.2 °C	12 mm	18 %
March	32.7 °C	42 mm	24 %
April	33.7 °C	65 mm	35 %
May	32.5 °C	228 mm	55 %
June	30.3 °C	419 mm	88 %
July	29.3 °C	432 mm	94 %
August	29.7 °C	335 mm	94 %
September	30.0 °C	290 mm	88 %
October	29.9 °C	186 mm	61 %
November	28.5 °C	43 mm	37 %
December	26.2 °C	14 mm	27 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	25.9 °C	13.8 °C	19.4 °C	30.9 °C	8.9 °C	21	0
February	29.2 °C	16.3 °C	22.3 °C	35.5 °C	9.1 °C	27	11
March	32.7 °C	20.2 °C	26.0 °C	39.3 °C	13.1 °C	31	28
April	33.7 °C	23.3 °C	27.8 °C	40.3 °C	18.0 °C	30	28
May	32.5 °C	24.7 °C	27.9 °C	39.4 °C	21.0 °C	31	27
June	30.3 °C	24.8 °C	26.9 °C	36.3 °C	22.6 °C	30	18
July	29.3 °C	24.5 °C	26.3 °C	33.8 °C	22.2 °C	30	14
August	29.7 °C	24.5 °C	26.4 °C	34.0 °C	22.7 °C	31	15
September	30.0 °C	24.2 °C	26.4 °C	35.0 °C	22.4 °C	30	18
October	29.9 °C	22.9 °C	25.9 °C	34.5 °C	17.4 °C	30	17
November	28.5 °C	19.2 °C	23.5 °C	33.0 °C	12.8 °C	29	5
December	26.2 °C	15.3 °C	20.4 °C	31.7 °C	8.9 °C	24	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	7 mm	1	11 h/day	17 %	71 %	8.8 km/h
February	12 mm	2	11 h/day	18 %	64 %	11 km/h
March	42 mm	3	12 h/day	24 %	65 %	13 km/h
April	65 mm	9	13 h/day	35 %	74 %	13 km/h
May	228 mm	19	13 h/day	55 %	81 %	13 km/h
June	419 mm	27	13 h/day	88 %	89 %	13 km/h
July	432 mm	30	13 h/day	94 %	91 %	14 km/h
August	335 mm	30	13 h/day	94 %	90 %	12 km/h
September	290 mm	27	12 h/day	88 %	90 %	9.9 km/h
October	186 mm	19	12 h/day	61 %	88 %	7.6 km/h
November	43 mm	5	11 h/day	37 %	81 %	7.2 km/h
December	14 mm	1	11 h/day	27 %	77 %	7.9 km/h

How Bāndarban compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Bāndarban	34 °C	14 °C	2,072 mm	343
Chattogram · Bangladesh	31 °C	15 °C	2,608 mm	316
Hāthazāri · Bangladesh	31 °C	15 °C	2,622 mm	326
Karnaphuli · Bangladesh	33 °C	14 °C	1,929 mm	326
Cox’s Bāzār · Bangladesh	31 °C	16 °C	2,645 mm	323
Comilla · Bangladesh	32 °C	12 °C	2,128 mm	333
Aizawl · India	27 °C	5.1 °C	1,761 mm	118

Planning a trip? See the best time to visit Bāndarban.

QuestionsCommon questions about Bāndarban’s climate

When is the best time to visit Bāndarban?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, December sit closest to 20 °C on average, April is the warmest month and January the driest. The month-by-month table above has the full picture.

How hot does Bāndarban get?

In April, the warmest month, daily highs average 34 °C. About 181 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average 14 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Bāndarban?

July, averaging 432 mm over 30 days with rain. The driest month is January with 7 mm. The year as a whole averages 2,072 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Bāndarban rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.