Barishal climate — normals and trends
Barishal (Bangladesh) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.6 °C and it receives 1,948 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 (18.9 °C). Rainfall peaks in July.
Barishal averages 0 frost days, 202 hot days (≥ 30 °C) and 172 rainy days per year.
Barishal has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.7 °C (on 14 April 1961) and the coldest 7.6 °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
BarishalBarisal Division
- coords
- 22.70°, 90.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.6°C
Average daily high
30.1°C
Average daily low
22.1°C
Annual rainfall
1,948mm
Sunshine / day
9.4h
Mean relative humidity
79%
Average peak wind
13.4km/h
Seasonal range
10.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
202 d/yr
Rainy days (≥ 1 mm)
172 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.0 °C
Average feels-like low
25.4 °C
Average peak gust
28.9 km/h
Tropical nights (≥ 20 °C)
251 d/yr
Solar radiation
16.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.40 · 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
42.7 °C
14 April 1961
Coldest day
7.6 °C
9 January 2013
Wettest day
257 mm
27 May 2024
Windiest day
58.7 km/h
30 April 1991
Strongest gust
121.3 km/h
27 May 2024
Hottest feels-like
46.2 °C
14 May 1957
Coldest feels-like
5.8 °C
9 January 2013
Sunniest day
12.7 h
11 June 1977
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 | 25.4 °C | 0.0 °C | 2 mm | -7 mm |
| Feb | 29.3 °C | +0.7 °C | 4 mm | -13 mm |
| Mar | 32.9 °C | +0.3 °C | 9 mm | -41 mm |
| Apr | 33.5 °C | -0.3 °C | 119 mm | -9 mm |
| May | 33.5 °C | +0.3 °C | 261 mm | +44 mm |
| Jun | 32.5 °C | +1.0 °C | 331 mm | -18 mm |
| Jul | 31.0 °C | +0.4 °C | 583 mm | +218 mm |
| Aug | 31.5 °C | +0.8 °C | 281 mm | -46 mm |
| Sep | 32.6 °C | +1.8 °C | 202 mm | -64 mm |
| Oct | 32.3 °C | +2.0 °C | 131 mm | -32 mm |
| Nov | 29.8 °C | +1.6 °C | 4 mm | -42 mm |
| Dec | 25.4 °C | -0.3 °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 Barishal?
Barishal has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.6 °C and it receives 1,948 mm of precipitation per year.
What is the hottest day ever recorded in Barishal?
The hottest day measured in Barishal between 1940 and 2025 was 14 April 1961, reaching 42.7 °C.
What is the coldest day in Barishal?
The coldest day measured in Barishal between 1940 and 2025 was 9 January 2013, at 7.6 °C.
Does it snow in Barishal?
Almost never: Barishal sees virtually no snow, with about 0 frost days per year.
Has the climate of Barishal warmed?
Yes: Barishal warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Barishal?
The wettest day measured in Barishal between 1940 and 2025 was 27 May 2024, with 257 mm of rain in 24 hours.
What was the windiest day in Barishal?
The windiest day measured in Barishal between 1940 and 2025 was 30 April 1991, with winds reaching 58.7 km/h.
What is the warmest month in Barishal?
The warmest month in Barishal is May (29.1 °C on average); the coldest is January (18.9 °C).
How much does it rain in Barishal?
Barishal receives on average 1,948 mm of precipitation per year, spread over about 172 rainy days.
Is it sunny in Barishal?
Barishal gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Barishal?
Yes: Barishal has on average 251 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Barishal?
In Barishal, between 1940 and 2025, the highest apparent temperature reached 46.2 °C on 14 May 1957, and the lowest was 5.8 °C on 9 January 2013.
Compare Barishal with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Barishal