Gopālganj climate — normals and trends
Gopālganj (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,324 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 (31.8 °C on average) and the coldest is January (16.0 °C). Rainfall peaks in July.
Gopālganj averages 0 frost days, 222 hot days (≥ 30 °C) and 125 rainy days per year.
Gopālganj has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.6 °C (on 26 May 1957) and the coldest 2.8 °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
GopālganjBihar
- coords
- 26.47°, 84.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
31.1°C
Average daily low
20.6°C
Annual rainfall
1,324mm
Sunshine / day
10.1h
Mean relative humidity
67%
Average peak wind
15.0km/h
Seasonal range
15.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
222 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
22.3 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
215 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.22 · 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
46.6 °C
26 May 1957
Coldest day
2.8 °C
9 January 2013
Wettest day
205 mm
16 June 1963
Windiest day
44.3 km/h
19 July 1975
Strongest gust
90.4 km/h
4 October 1968
Hottest feels-like
49.5 °C
18 June 2005
Coldest feels-like
0.3 °C
9 January 2013
Sunniest day
13.0 h
14 May 1940
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 | 21.2 °C | -1.7 °C | 0 mm | -19 mm |
| Feb | 26.7 °C | +0.2 °C | 0 mm | -20 mm |
| Mar | 32.6 °C | 0.0 °C | 6 mm | -13 mm |
| Apr | 35.4 °C | -2.0 °C | 47 mm | +24 mm |
| May | 36.1 °C | -1.8 °C | 79 mm | +26 mm |
| Jun | 36.4 °C | +0.5 °C | 157 mm | -35 mm |
| Jul | 34.4 °C | +2.0 °C | 186 mm | -175 mm |
| Aug | 32.7 °C | +0.7 °C | 487 mm | +179 mm |
| Sep | 33.0 °C | +1.4 °C | 288 mm | +50 mm |
| Oct | 31.1 °C | +0.3 °C | 248 mm | +176 mm |
| Nov | 28.5 °C | 0.0 °C | 6 mm | -3 mm |
| Dec | 22.1 °C | -2.6 °C | 0 mm | -9 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 hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,324 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 46.6 °C.
What is the coldest day in Gopālganj?
The coldest day measured in Gopālganj between 1940 and 2025 was 9 January 2013, at 2.8 °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 +1.0 °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 16 June 1963, with 205 mm of rain in 24 hours.
What was the windiest day in Gopālganj?
The windiest day measured in Gopālganj between 1940 and 2025 was 19 July 1975, with winds reaching 44.3 km/h.
What is the warmest month in Gopālganj?
The warmest month in Gopālganj is May (31.8 °C on average); the coldest is January (16.0 °C).
How much does it rain in Gopālganj?
Gopālganj receives on average 1,324 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Gopālganj?
Gopālganj gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Gopālganj?
Yes: Gopālganj has on average 215 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 49.5 °C on 18 June 2005, and the lowest was 0.3 °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