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
- 1940–2025 · 86 yrs
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
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
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
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 25.8 °C | +0.7 °C | 10 mm | +0 mm |
| Feb | 28.4 °C | +1.1 °C | 8 mm | -18 mm |
| Mar | 32.4 °C | +1.7 °C | 23 mm | -80 mm |
| Apr | 32.7 °C | +1.2 °C | 186 mm | -121 mm |
| May | 32.3 °C | +0.9 °C | 413 mm | -93 mm |
| Jun | 32.8 °C | +1.4 °C | 325 mm | -163 mm |
| Jul | 32.8 °C | +1.4 °C | 502 mm | +116 mm |
| Aug | 32.5 °C | +0.8 °C | 374 mm | +31 mm |
| Sep | 33.9 °C | +2.3 °C | 298 mm | -9 mm |
| Oct | 33.1 °C | +2.3 °C | 158 mm | -13 mm |
| Nov | 30.4 °C | +1.6 °C | 26 mm | -7 mm |
| Dec | 26.4 °C | +0.4 °C | 0 mm | -12 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
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.
Compare Baniachang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Baniachang