Ishwardi climate — normals and trends
Ishwardi (Bangladesh) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,670 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 (29.3 °C on average) and the coldest is January (17.7 °C). Rainfall peaks in July.
Ishwardi averages 0 frost days, 219 hot days (≥ 30 °C) and 162 rainy days per year.
Ishwardi has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.5 °C (on 26 May 1957) and the coldest 5.2 °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
IshwardiRajshahi Division
- coords
- 24.13°, 89.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
30.6°C
Average daily low
21.3°C
Annual rainfall
1,670mm
Sunshine / day
9.5h
Mean relative humidity
74%
Average peak wind
12.7km/h
Seasonal range
11.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
219 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
24.0 °C
Average peak gust
27.7 km/h
Tropical nights (≥ 20 °C)
232 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.18 · 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
46.5 °C
26 May 1957
Coldest day
5.2 °C
9 January 2013
Wettest day
439 mm
19 September 2000
Windiest day
52.5 km/h
27 May 2024
Strongest gust
105.5 km/h
27 May 2024
Hottest feels-like
48.0 °C
29 May 1957
Coldest feels-like
2.7 °C
9 January 2013
Sunniest day
13.1 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 | 24.1 °C | -0.5 °C | 1 mm | -11 mm |
| Feb | 28.2 °C | +0.3 °C | 7 mm | -13 mm |
| Mar | 32.4 °C | -0.2 °C | 8 mm | -32 mm |
| Apr | 33.7 °C | -1.5 °C | 135 mm | +34 mm |
| May | 33.9 °C | -0.4 °C | 234 mm | +11 mm |
| Jun | 33.4 °C | +0.5 °C | 239 mm | -69 mm |
| Jul | 32.3 °C | +0.5 °C | 296 mm | -17 mm |
| Aug | 32.2 °C | +0.5 °C | 247 mm | -19 mm |
| Sep | 33.0 °C | +1.4 °C | 214 mm | -26 mm |
| Oct | 32.4 °C | +1.7 °C | 94 mm | -25 mm |
| Nov | 29.4 °C | +0.9 °C | 13 mm | -8 mm |
| Dec | 24.2 °C | -1.5 °C | 1 mm | -8 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 Ishwardi?
Ishwardi has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,670 mm of precipitation per year.
What is the hottest day ever recorded in Ishwardi?
The hottest day measured in Ishwardi between 1940 and 2025 was 26 May 1957, reaching 46.5 °C.
What is the coldest day in Ishwardi?
The coldest day measured in Ishwardi between 1940 and 2025 was 9 January 2013, at 5.2 °C.
Does it snow in Ishwardi?
Almost never: Ishwardi sees virtually no snow, with about 0 frost days per year.
Has the climate of Ishwardi warmed?
Yes: Ishwardi warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ishwardi?
The wettest day measured in Ishwardi between 1940 and 2025 was 19 September 2000, with 439 mm of rain in 24 hours.
What was the windiest day in Ishwardi?
The windiest day measured in Ishwardi between 1940 and 2025 was 27 May 2024, with winds reaching 52.5 km/h.
What is the warmest month in Ishwardi?
The warmest month in Ishwardi is May (29.3 °C on average); the coldest is January (17.7 °C).
How much does it rain in Ishwardi?
Ishwardi receives on average 1,670 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in Ishwardi?
Ishwardi gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Ishwardi?
Yes: Ishwardi has on average 232 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ishwardi?
In Ishwardi, between 1940 and 2025, the highest apparent temperature reached 48.0 °C on 29 May 1957, and the lowest was 2.7 °C on 9 January 2013.
Compare Ishwardi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ishwardi