Gopālganj climate — normals and trends
Gopālganj (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 1,900 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 (29.1 °C on average) and the coldest is January (18.5 °C). Rainfall peaks in July.
Gopālganj averages 0 frost days, 216 hot days (≥ 30 °C) and 173 rainy days per year.
Gopālganj has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.2 °C (on 26 May 1957) and the coldest 6.6 °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
GopālganjDhaka Division
- coords
- 23.22°, 90.06°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.5°C
Average daily high
30.4°C
Average daily low
21.7°C
Annual rainfall
1,900mm
Sunshine / day
9.4h
Mean relative humidity
78%
Average peak wind
13.2km/h
Seasonal range
10.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
216 d/yr
Rainy days (≥ 1 mm)
173 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.2 °C
Average feels-like low
24.8 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
243 d/yr
Solar radiation
16.8 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
43.2 °C
26 May 1957
Coldest day
6.6 °C
9 January 2013
Wettest day
242 mm
27 May 2024
Windiest day
57.4 km/h
27 May 2024
Strongest gust
117.0 km/h
27 May 2024
Hottest feels-like
47.0 °C
14 May 1957
Coldest feels-like
4.4 °C
9 January 2013
Sunniest day
12.8 h
31 May 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 | 25.1 °C | -0.2 °C | 2 mm | -8 mm |
| Feb | 29.1 °C | +0.7 °C | 5 mm | -15 mm |
| Mar | 32.8 °C | +0.2 °C | 15 mm | -40 mm |
| Apr | 33.7 °C | -0.6 °C | 155 mm | +14 mm |
| May | 33.5 °C | -0.1 °C | 241 mm | -6 mm |
| Jun | 32.8 °C | +0.7 °C | 270 mm | -57 mm |
| Jul | 31.5 °C | +0.3 °C | 454 mm | +108 mm |
| Aug | 32.1 °C | +0.8 °C | 262 mm | -41 mm |
| Sep | 33.1 °C | +1.8 °C | 180 mm | -76 mm |
| Oct | 32.5 °C | +1.9 °C | 105 mm | -46 mm |
| Nov | 29.9 °C | +1.4 °C | 3 mm | -32 mm |
| Dec | 25.1 °C | -0.7 °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 Gopālganj?
Gopālganj has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 1,900 mm of precipitation per year.
What is the hottest day ever recorded in Gopālganj?
The hottest day measured in Gopālganj between 1940 and 2025 was 26 May 1957, reaching 43.2 °C.
What is the coldest day in Gopālganj?
The coldest day measured in Gopālganj between 1940 and 2025 was 9 January 2013, at 6.6 °C.
Does it snow in Gopālganj?
Almost never: Gopālganj sees virtually no snow, with about 0 frost days per year.
Has the climate of Gopālganj warmed?
Yes: Gopālganj warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gopālganj?
The wettest day measured in Gopālganj between 1940 and 2025 was 27 May 2024, with 242 mm of rain in 24 hours.
What was the windiest day in Gopālganj?
The windiest day measured in Gopālganj between 1940 and 2025 was 27 May 2024, with winds reaching 57.4 km/h.
What is the warmest month in Gopālganj?
The warmest month in Gopālganj is May (29.1 °C on average); the coldest is January (18.5 °C).
How much does it rain in Gopālganj?
Gopālganj receives on average 1,900 mm of precipitation per year, spread over about 173 rainy days.
Is it sunny in Gopālganj?
Gopālganj gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Gopālganj?
Yes: Gopālganj has on average 243 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gopālganj?
In Gopālganj, between 1940 and 2025, the highest apparent temperature reached 47.0 °C on 14 May 1957, and the lowest was 4.4 °C on 9 January 2013.
Compare Gopālganj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gopālganj