Chhātak climate — normals and trends
Chhātak (Bangladesh) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 4,982 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 (27.2 °C on average) and the coldest is January (16.7 °C). Rainfall peaks in June.
Chhātak averages 0 frost days, 122 hot days (≥ 30 °C) and 205 rainy days per year.
Chhātak has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.3 °C (on 13 April 1957) and the coldest 4.5 °C (on 30 January 1977).
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
ChhātakSylhet Division
- coords
- 25.04°, 91.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.4°C
Average daily high
28.2°C
Average daily low
19.6°C
Annual rainfall
4,982mm
Sunshine / day
8.3h
Mean relative humidity
81%
Average peak wind
7.6km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
122 d/yr
Rainy days (≥ 1 mm)
205 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.4 °C
Average feels-like low
22.5 °C
Average peak gust
25.1 km/h
Tropical nights (≥ 20 °C)
204 d/yr
Solar radiation
15.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.53 · 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
39.3 °C
13 April 1957
Coldest day
4.5 °C
30 January 1977
Wettest day
361 mm
25 June 1988
Windiest day
42.1 km/h
28 May 2024
Strongest gust
102.6 km/h
28 May 2024
Hottest feels-like
46.6 °C
20 September 2024
Coldest feels-like
2.9 °C
30 January 1977
Sunniest day
13.1 h
10 June 1972
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 | 24.7 °C | +1.1 °C | 10 mm | -3 mm |
| Feb | 26.7 °C | +0.9 °C | 16 mm | -24 mm |
| Mar | 29.8 °C | +1.1 °C | 76 mm | -99 mm |
| Apr | 30.3 °C | +1.0 °C | 299 mm | -244 mm |
| May | 30.5 °C | +1.0 °C | 569 mm | -208 mm |
| Jun | 31.7 °C | +1.8 °C | 675 mm | -301 mm |
| Jul | 32.2 °C | +2.1 °C | 786 mm | -136 mm |
| Aug | 31.1 °C | +0.8 °C | 678 mm | -72 mm |
| Sep | 32.6 °C | +2.3 °C | 555 mm | +55 mm |
| Oct | 31.8 °C | +2.4 °C | 158 mm | -79 mm |
| Nov | 28.8 °C | +1.5 °C | 42 mm | +6 mm |
| Dec | 25.2 °C | +0.6 °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 Chhātak?
Chhātak has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 4,982 mm of precipitation per year.
What is the hottest day ever recorded in Chhātak?
The hottest day measured in Chhātak between 1940 and 2025 was 13 April 1957, reaching 39.3 °C.
What is the coldest day in Chhātak?
The coldest day measured in Chhātak between 1940 and 2025 was 30 January 1977, at 4.5 °C.
Does it snow in Chhātak?
Almost never: Chhātak sees virtually no snow, with about 0 frost days per year.
Has the climate of Chhātak warmed?
Yes: Chhātak warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chhātak?
The wettest day measured in Chhātak between 1940 and 2025 was 25 June 1988, with 361 mm of rain in 24 hours.
What was the windiest day in Chhātak?
The windiest day measured in Chhātak between 1940 and 2025 was 28 May 2024, with winds reaching 42.1 km/h.
What is the warmest month in Chhātak?
The warmest month in Chhātak is August (27.2 °C on average); the coldest is January (16.7 °C).
How much does it rain in Chhātak?
Chhātak receives on average 4,982 mm of precipitation per year, spread over about 205 rainy days.
Is it sunny in Chhātak?
Chhātak gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
Are there tropical nights in Chhātak?
Yes: Chhātak has on average 204 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chhātak?
In Chhātak, between 1940 and 2025, the highest apparent temperature reached 46.6 °C on 20 September 2024, and the lowest was 2.9 °C on 30 January 1977.
Compare Chhātak with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chhātak