Sonargaon climate — normals and trends
Sonargaon (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 2,006 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 (28.6 °C on average) and the coldest is January (18.4 °C). Rainfall peaks in June.
Sonargaon averages 0 frost days, 209 hot days (≥ 30 °C) and 178 rainy days per year.
Sonargaon has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.4 °C (on 17 April 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
SonargaonDhaka Division
- coords
- 23.65°, 90.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
30.1°C
Average daily low
21.7°C
Annual rainfall
2,006mm
Sunshine / day
9.3h
Mean relative humidity
78%
Average peak wind
13.2km/h
Seasonal range
10.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
209 d/yr
Rainy days (≥ 1 mm)
178 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.9 °C
Average feels-like low
24.7 °C
Average peak gust
28.4 km/h
Tropical nights (≥ 20 °C)
243 d/yr
Solar radiation
16.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.38 · 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
42.4 °C
17 April 1957
Coldest day
6.6 °C
9 January 2013
Wettest day
220 mm
21 July 2007
Windiest day
52.7 km/h
27 May 2024
Strongest gust
124.9 km/h
27 May 2024
Hottest feels-like
46.2 °C
19 July 2018
Coldest feels-like
4.6 °C
12 January 2013
Sunniest day
12.9 h
1 June 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 | 25.2 °C | 0.0 °C | 4 mm | -4 mm |
| Feb | 28.8 °C | +0.7 °C | 7 mm | -15 mm |
| Mar | 32.7 °C | +0.6 °C | 10 mm | -49 mm |
| Apr | 33.5 °C | +0.3 °C | 157 mm | -16 mm |
| May | 33.3 °C | +0.7 °C | 309 mm | -2 mm |
| Jun | 32.6 °C | +1.0 °C | 350 mm | -4 mm |
| Jul | 31.7 °C | +0.6 °C | 456 mm | +118 mm |
| Aug | 32.1 °C | +0.8 °C | 310 mm | +24 mm |
| Sep | 33.2 °C | +1.8 °C | 172 mm | -83 mm |
| Oct | 32.7 °C | +2.1 °C | 146 mm | -12 mm |
| Nov | 30.2 °C | +1.6 °C | 7 mm | -25 mm |
| Dec | 25.5 °C | -0.4 °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 Sonargaon?
Sonargaon has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 2,006 mm of precipitation per year.
What is the hottest day ever recorded in Sonargaon?
The hottest day measured in Sonargaon between 1940 and 2025 was 17 April 1957, reaching 42.4 °C.
What is the coldest day in Sonargaon?
The coldest day measured in Sonargaon between 1940 and 2025 was 9 January 2013, at 6.6 °C.
Does it snow in Sonargaon?
Almost never: Sonargaon sees virtually no snow, with about 0 frost days per year.
Has the climate of Sonargaon warmed?
Yes: Sonargaon warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sonargaon?
The wettest day measured in Sonargaon between 1940 and 2025 was 21 July 2007, with 220 mm of rain in 24 hours.
What was the windiest day in Sonargaon?
The windiest day measured in Sonargaon between 1940 and 2025 was 27 May 2024, with winds reaching 52.7 km/h.
What is the warmest month in Sonargaon?
The warmest month in Sonargaon is May (28.6 °C on average); the coldest is January (18.4 °C).
How much does it rain in Sonargaon?
Sonargaon receives on average 2,006 mm of precipitation per year, spread over about 178 rainy days.
Is it sunny in Sonargaon?
Sonargaon gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Sonargaon?
Yes: Sonargaon has on average 243 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sonargaon?
In Sonargaon, between 1940 and 2025, the highest apparent temperature reached 46.2 °C on 19 July 2018, and the lowest was 4.6 °C on 12 January 2013.
Compare Sonargaon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sonargaon