Cox’s Bāzār climate — normals and trends
Cox’s Bāzār (Bangladesh) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 2,812 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 (28.1 °C on average) and the coldest is January (20.4 °C). Rainfall peaks in July.
Cox’s Bāzār averages 0 frost days, 81 hot days (≥ 30 °C) and 173 rainy days per year.
Cox’s Bāzār has warmed by +1.1 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.9 °C (on 24 May 2021) and the coldest 13.4 °C (on 12 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
Cox’s BāzārChittagong
- coords
- 21.44°, 92.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
28.1°C
Average daily low
23.1°C
Annual rainfall
2,812mm
Sunshine / day
9.1h
Mean relative humidity
80%
Average peak wind
17.9km/h
Seasonal range
7.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
81 d/yr
Rainy days (≥ 1 mm)
173 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.9 °C
Average feels-like low
25.9 °C
Average peak gust
31.3 km/h
Tropical nights (≥ 20 °C)
283 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.63 · 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
35.9 °C
24 May 2021
Coldest day
13.4 °C
12 January 2013
Wettest day
395 mm
22 June 1944
Windiest day
89.0 km/h
30 April 1991
Strongest gust
158.0 km/h
30 April 1991
Hottest feels-like
42.0 °C
24 May 2024
Coldest feels-like
10.1 °C
13 January 1989
Sunniest day
12.8 h
8 June 1948
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 | 25.3 °C | +1.1 °C | 0 mm | -7 mm |
| Feb | 27.7 °C | +1.5 °C | 1 mm | -10 mm |
| Mar | 30.3 °C | +1.2 °C | 1 mm | -29 mm |
| Apr | 31.4 °C | +0.8 °C | 36 mm | -36 mm |
| May | 31.7 °C | +1.1 °C | 369 mm | +153 mm |
| Jun | 29.5 °C | +0.4 °C | 784 mm | +148 mm |
| Jul | 28.9 °C | +0.5 °C | 888 mm | +200 mm |
| Aug | 29.4 °C | +0.9 °C | 433 mm | -77 mm |
| Sep | 30.1 °C | +1.2 °C | 227 mm | -120 mm |
| Oct | 30.5 °C | +1.6 °C | 149 mm | -65 mm |
| Nov | 28.7 °C | +1.2 °C | 50 mm | -12 mm |
| Dec | 25.7 °C | +0.7 °C | 0 mm | -20 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 Cox’s Bāzār?
Cox’s Bāzār has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 2,812 mm of precipitation per year.
What is the hottest day ever recorded in Cox’s Bāzār?
The hottest day measured in Cox’s Bāzār between 1940 and 2025 was 24 May 2021, reaching 35.9 °C.
What is the coldest day in Cox’s Bāzār?
The coldest day measured in Cox’s Bāzār between 1940 and 2025 was 12 January 2013, at 13.4 °C.
Does it snow in Cox’s Bāzār?
Almost never: Cox’s Bāzār sees virtually no snow, with about 0 frost days per year.
Has the climate of Cox’s Bāzār warmed?
Yes: Cox’s Bāzār warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cox’s Bāzār?
The wettest day measured in Cox’s Bāzār between 1940 and 2025 was 22 June 1944, with 395 mm of rain in 24 hours.
What was the windiest day in Cox’s Bāzār?
The windiest day measured in Cox’s Bāzār between 1940 and 2025 was 30 April 1991, with winds reaching 89.0 km/h.
What is the warmest month in Cox’s Bāzār?
The warmest month in Cox’s Bāzār is May (28.1 °C on average); the coldest is January (20.4 °C).
How much does it rain in Cox’s Bāzār?
Cox’s Bāzār receives on average 2,812 mm of precipitation per year, spread over about 173 rainy days.
Is it sunny in Cox’s Bāzār?
Cox’s Bāzār gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
Are there tropical nights in Cox’s Bāzār?
Yes: Cox’s Bāzār has on average 283 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cox’s Bāzār?
In Cox’s Bāzār, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 24 May 2024, and the lowest was 10.1 °C on 13 January 1989.
Compare Cox’s Bāzār with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cox’s Bāzār