Baniachang climate — normals and trends

Baniachang (Bangladesh) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 24.9 °C and it receives 2,691 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 August (28.3 °C on average) and the coldest is January (18.3 °C). Rainfall peaks in May.

Baniachang averages 0 frost days, 193 hot days (≥ 30 °C) and 197 rainy days per year.

Baniachang has warmed by +1.2 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.8 °C (on 17 April 1957) and the coldest 6.7 °C (on 11 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

BaniachangSylhet Division

coords
24.52°, 91.36°
period
19402025 · 86 yrs
AmTropical monsoonWarmest monthAugustColdest monthJanuaryWettest monthMayDriest monthJanuary

Mean daily temperature

24.9°C

Average daily high

29.8°C

Average daily low

21.2°C

Annual rainfall

2,691mm

Sunshine / day

8.7h

Mean relative humidity

79%

Average peak wind

11.7km/h

Seasonal range

10.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

193 d/yr

Rainy days (≥ 1 mm)

197 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.7 °C

Average feels-like low

24.1 °C

Average peak gust

26.2 km/h

Tropical nights (≥ 20 °C)

233 d/yr

Solar radiation

15.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.48 · p = < 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

17 April 1957

Coldest day

6.7 °C

11 January 2013

Wettest day

252 mm

23 June 2014

Windiest day

47.4 km/h

27 May 2024

Strongest gust

106.9 km/h

28 May 2024

Hottest feels-like

47.5 °C

20 September 2024

Coldest feels-like

4.6 °C

31 January 1964

Sunniest day

13.0 h

1 June 1979

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202537.4 °C10 June 202512.9 °C10 January 202526.1 °C2,323 mm2430
202438.9 °C1 May 202411.4 °C9 February 202426.0 °C2,743 mm2250
202338.6 °C10 May 202310.1 °C19 January 202326.1 °C2,597 mm2360
202236.9 °C18 August 202210.6 °C31 January 202226.0 °C2,062 mm2520
202139.1 °C26 April 20219.2 °C1 February 202126.0 °C1,923 mm2520
202037.0 °C19 September 202010.4 °C20 December 202025.5 °C2,397 mm2230
201937.5 °C11 August 201911.7 °C3 January 201925.8 °C2,100 mm2180
201838.1 °C19 July 20188.7 °C9 January 201825.3 °C1,993 mm2150
201736.6 °C7 June 20179.1 °C14 January 201725.5 °C3,443 mm2080
201636.5 °C4 August 20169.3 °C26 January 201625.8 °C3,047 mm2260
201536.9 °C18 September 20159.6 °C1 February 201525.3 °C2,839 mm2140
201438.4 °C24 April 201410.3 °C9 January 201425.4 °C2,044 mm2260
201337.7 °C11 June 20136.7 °C11 January 201325.3 °C2,412 mm2350
201236.5 °C8 September 20129.3 °C23 January 201225.1 °C2,465 mm2210
201136.2 °C1 August 20118.1 °C18 January 201125.2 °C2,238 mm2240
201036.3 °C10 August 201010.2 °C6 January 201025.8 °C2,883 mm2380
200936.6 °C26 April 200911.4 °C27 December 200925.9 °C2,331 mm2500
200835.8 °C8 August 200811.1 °C3 February 200825.3 °C2,272 mm2090
200737.0 °C10 August 20078.6 °C16 January 200725.0 °C3,318 mm2040
200636.8 °C1 July 200611.3 °C14 January 200625.8 °C2,177 mm2230
200536.0 °C15 September 200510.8 °C21 January 200525.4 °C2,258 mm1980
200435.8 °C28 March 200410.0 °C4 February 200425.1 °C3,614 mm1920
200335.6 °C2 June 20037.4 °C23 January 200325.1 °C2,592 mm1970
200235.5 °C17 May 200210.4 °C1 February 200225.0 °C3,276 mm1810
200135.4 °C8 July 20018.8 °C11 January 200125.0 °C2,468 mm1980
200036.0 °C13 May 20009.6 °C8 January 200024.6 °C3,050 mm1770
199936.9 °C26 April 199910.7 °C1 February 199925.5 °C2,418 mm2220
199835.6 °C21 August 19989.8 °C23 January 199825.2 °C3,083 mm1940
199736.8 °C27 August 19979.1 °C24 January 199724.6 °C2,630 mm1830
199635.9 °C15 September 19969.4 °C23 January 199625.1 °C3,285 mm1920
199536.4 °C24 March 19958.3 °C23 January 199525.1 °C2,613 mm2070
199435.4 °C6 May 19949.6 °C19 January 199424.9 °C2,522 mm1990
199335.2 °C19 September 19938.2 °C21 January 199324.5 °C3,694 mm1620
199237.1 °C14 April 19929.4 °C3 January 199224.8 °C1,951 mm2110
199136.6 °C20 August 19919.0 °C31 December 199124.7 °C3,619 mm1740
199035.3 °C19 August 19909.2 °C3 January 199025.0 °C2,982 mm1820
198937.7 °C24 April 19898.0 °C13 January 198924.9 °C2,470 mm1890
198836.9 °C13 April 19888.0 °C28 January 198825.1 °C3,225 mm1860
198736.2 °C18 May 198710.2 °C3 January 198725.2 °C2,439 mm1920
198637.2 °C29 March 198611.2 °C20 January 198624.9 °C2,814 mm1840
198534.8 °C13 March 19858.8 °C15 January 198525.0 °C2,382 mm1990
198436.2 °C1 June 19849.1 °C19 January 198424.6 °C3,069 mm1880
198335.4 °C28 May 19838.4 °C31 December 198324.5 °C3,598 mm1780
198236.7 °C24 May 198210.0 °C7 February 198224.7 °C2,265 mm1920
198136.0 °C24 September 19819.1 °C10 January 198124.7 °C2,090 mm2020
198036.3 °C8 April 19808.3 °C9 February 198024.8 °C2,664 mm1950
197938.4 °C4 June 19799.6 °C5 January 197925.4 °C2,097 mm2140
197836.1 °C13 August 19787.0 °C5 January 197824.5 °C2,775 mm1870
197735.2 °C6 September 19778.4 °C30 January 197724.4 °C3,145 mm1570
197635.4 °C29 March 197610.3 °C12 December 197624.6 °C2,907 mm1850
197536.6 °C8 April 197510.0 °C21 January 197524.6 °C2,537 mm1900
197435.1 °C24 May 19748.0 °C8 February 197424.4 °C2,930 mm1680
197338.1 °C31 March 197310.0 °C18 January 197324.8 °C3,560 mm1760
197236.8 °C13 July 19729.2 °C9 February 197224.8 °C2,685 mm1900
197135.1 °C26 March 197110.1 °C31 January 197124.3 °C2,919 mm1620
197036.3 °C12 May 19709.1 °C30 January 197024.7 °C2,562 mm1870
196935.7 °C19 May 19698.2 °C17 January 196924.8 °C2,461 mm2090
196835.8 °C11 May 19687.6 °C30 December 196824.5 °C3,156 mm1760
196736.2 °C12 April 19678.5 °C1 February 196724.4 °C2,880 mm1650
196636.7 °C15 April 196610.2 °C25 December 196624.7 °C2,780 mm1720
196537.5 °C30 April 196510.5 °C10 January 196524.5 °C2,759 mm1640
196437.7 °C15 March 19647.3 °C31 January 196424.9 °C3,189 mm1940
196338.5 °C31 March 19639.2 °C20 January 196324.9 °C2,931 mm1900
196238.4 °C31 March 19627.6 °C16 January 196224.7 °C2,597 mm1970
196136.8 °C28 May 19617.7 °C16 February 196124.7 °C2,423 mm1870
196041.4 °C30 April 19608.2 °C25 January 196025.3 °C2,526 mm1980
195936.6 °C22 March 195910.0 °C2 January 195924.5 °C3,199 mm1530
195836.1 °C7 June 19589.7 °C11 February 195825.1 °C2,922 mm1860
195741.8 °C17 April 19579.5 °C16 February 195725.4 °C2,107 mm2150
195641.1 °C18 April 19569.6 °C7 February 195625.0 °C3,017 mm1880
195537.0 °C23 March 19559.5 °C3 January 195524.8 °C2,760 mm1980
195436.4 °C25 April 19549.0 °C24 January 195424.8 °C2,681 mm1550
195335.5 °C13 August 19539.0 °C19 January 195324.0 °C3,539 mm1230
195234.4 °C14 April 195211.0 °C6 January 195224.4 °C2,853 mm1590
195136.3 °C24 July 195110.6 °C25 January 195124.4 °C3,121 mm1430
195035.4 °C26 July 19508.2 °C13 February 195024.5 °C2,645 mm1500
194934.2 °C13 July 19499.8 °C23 December 194924.1 °C3,136 mm1190
194836.6 °C11 March 194811.6 °C18 January 194824.8 °C2,816 mm1640
194739.4 °C10 April 194711.0 °C17 January 194725.4 °C2,385 mm1920
194638.2 °C13 March 194612.3 °C2 January 194625.0 °C1,946 mm1830
194537.7 °C4 April 19459.1 °C8 January 194524.9 °C2,331 mm1950
194436.3 °C21 March 194411.6 °C22 January 194425.2 °C1,664 mm2170
194335.3 °C26 March 194310.9 °C2 February 194324.5 °C1,708 mm1670
194239.2 °C24 April 194210.6 °C6 February 194224.7 °C2,569 mm1730
194134.7 °C6 April 194110.0 °C24 January 194124.2 °C2,932 mm1620
194035.2 °C30 June 194010.4 °C30 December 194024.2 °C2,602 mm1680

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?

Across the whole year

Average daily high
31.1 °C
+1.3 °C
Hot days (≥ 30 °C)
243 d/yr
+50
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
2323 mm
-368 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan25.8 °C+0.7 °C10 mm+0 mm
Feb28.4 °C+1.1 °C8 mm-18 mm
Mar32.4 °C+1.7 °C23 mm-80 mm
Apr32.7 °C+1.2 °C186 mm-121 mm
May32.3 °C+0.9 °C413 mm-93 mm
Jun32.8 °C+1.4 °C325 mm-163 mm
Jul32.8 °C+1.4 °C502 mm+116 mm
Aug32.5 °C+0.8 °C374 mm+31 mm
Sep33.9 °C+2.3 °C298 mm-9 mm
Oct33.1 °C+2.3 °C158 mm-13 mm
Nov30.4 °C+1.6 °C26 mm-7 mm
Dec26.4 °C+0.4 °C0 mm-12 mm

The year's extremes

Hottest day
37.4 °C
10 Jun 2025
Coldest day
12.9 °C
10 Jan 2025
Wettest day
89.9 mm
30 May 2025
Windiest day
33.4 km/h
30 May 2025
Strongest gust
67.7 km/h
29 May 2025
Hottest feels-like
45.9 °C
10 Jun 2025
Coldest feels-like
12.5 °C
9 Feb 2025
Sunniest day
12.4 h
9 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 Baniachang?

Baniachang has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 24.9 °C and it receives 2,691 mm of precipitation per year.

What is the hottest day ever recorded in Baniachang?

The hottest day measured in Baniachang between 1940 and 2025 was 17 April 1957, reaching 41.8 °C.

What is the coldest day in Baniachang?

The coldest day measured in Baniachang between 1940 and 2025 was 11 January 2013, at 6.7 °C.

Does it snow in Baniachang?

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

Has the climate of Baniachang warmed?

Yes: Baniachang warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Baniachang?

The wettest day measured in Baniachang between 1940 and 2025 was 23 June 2014, with 252 mm of rain in 24 hours.

What was the windiest day in Baniachang?

The windiest day measured in Baniachang between 1940 and 2025 was 27 May 2024, with winds reaching 47.4 km/h.

What is the warmest month in Baniachang?

The warmest month in Baniachang is August (28.3 °C on average); the coldest is January (18.3 °C).

How much does it rain in Baniachang?

Baniachang receives on average 2,691 mm of precipitation per year, spread over about 197 rainy days.

Is it sunny in Baniachang?

Baniachang gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.

Are there tropical nights in Baniachang?

Yes: Baniachang has on average 233 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Baniachang?

In Baniachang, between 1940 and 2025, the highest apparent temperature reached 47.5 °C on 20 September 2024, and the lowest was 4.6 °C on 31 January 1964.

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