Khulna climate — normals and trends
Khulna (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 1,751 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 (29.6 °C on average) and the coldest is January (19.1 °C). Rainfall peaks in July.
Khulna averages 0 frost days, 213 hot days (≥ 30 °C) and 168 rainy days per year.
Khulna has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.1 °C (on 14 May 1957) and the coldest 7.7 °C (on 9 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
KhulnaKhulna Division
- coords
- 22.81°, 89.56°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.9°C
Average daily high
30.4°C
Average daily low
22.4°C
Annual rainfall
1,751mm
Sunshine / day
9.4h
Mean relative humidity
78%
Average peak wind
13.4km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
213 d/yr
Rainy days (≥ 1 mm)
168 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.2 °C
Average feels-like low
25.8 °C
Average peak gust
28.9 km/h
Tropical nights (≥ 20 °C)
255 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
43.1 °C
14 May 1957
Coldest day
7.7 °C
9 January 2013
Wettest day
179 mm
20 June 1996
Windiest day
51.9 km/h
20 May 2020
Strongest gust
100.8 km/h
25 May 2009
Hottest feels-like
47.5 °C
20 May 2002
Coldest feels-like
5.9 °C
9 January 2013
Sunniest day
12.7 h
13 June 1957
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 | 25.2 °C | -0.3 °C | 2 mm | -8 mm |
| Feb | 29.0 °C | +0.4 °C | 11 mm | -9 mm |
| Mar | 33.0 °C | +0.3 °C | 7 mm | -41 mm |
| Apr | 33.6 °C | -0.8 °C | 119 mm | +7 mm |
| May | 33.7 °C | -0.2 °C | 179 mm | -5 mm |
| Jun | 32.8 °C | +0.6 °C | 330 mm | +30 mm |
| Jul | 31.3 °C | +0.3 °C | 488 mm | +143 mm |
| Aug | 31.6 °C | +0.6 °C | 303 mm | -1 mm |
| Sep | 32.7 °C | +1.7 °C | 229 mm | -13 mm |
| Oct | 32.3 °C | +1.9 °C | 130 mm | -11 mm |
| Nov | 29.6 °C | +1.2 °C | 4 mm | -32 mm |
| Dec | 25.0 °C | -0.9 °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 Khulna?
Khulna has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 1,751 mm of precipitation per year.
What is the hottest day ever recorded in Khulna?
The hottest day measured in Khulna between 1940 and 2025 was 14 May 1957, reaching 43.1 °C.
What is the coldest day in Khulna?
The coldest day measured in Khulna between 1940 and 2025 was 9 January 2013, at 7.7 °C.
Does it snow in Khulna?
Almost never: Khulna sees virtually no snow, with about 0 frost days per year.
Has the climate of Khulna warmed?
Yes: Khulna warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Khulna?
The wettest day measured in Khulna between 1940 and 2025 was 20 June 1996, with 179 mm of rain in 24 hours.
What was the windiest day in Khulna?
The windiest day measured in Khulna between 1940 and 2025 was 20 May 2020, with winds reaching 51.9 km/h.
What is the warmest month in Khulna?
The warmest month in Khulna is May (29.6 °C on average); the coldest is January (19.1 °C).
How much does it rain in Khulna?
Khulna receives on average 1,751 mm of precipitation per year, spread over about 168 rainy days.
Is it sunny in Khulna?
Khulna gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Khulna?
Yes: Khulna has on average 255 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Khulna?
In Khulna, between 1940 and 2025, the highest apparent temperature reached 47.5 °C on 20 May 2002, and the lowest was 5.9 °C on 9 January 2013.
Compare Khulna with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Khulna