Sandwīp climate — normals and trends
Sandwīp (Bangladesh) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 3,351 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 (28.3 °C on average) and the coldest is January (20.6 °C). Rainfall peaks in July.
Sandwīp averages 0 frost days, 33 hot days (≥ 30 °C) and 183 rainy days per year.
Sandwīp has warmed by +0.5 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.6 °C (on 22 April 2014) and the coldest 13.3 °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
SandwīpChittagong
- coords
- 22.51°, 91.45°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
27.5°C
Average daily low
24.0°C
Annual rainfall
3,351mm
Sunshine / day
9.4h
Mean relative humidity
80%
Average peak wind
20.8km/h
Seasonal range
7.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.0 °C
Average feels-like low
26.6 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
298 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.5 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
34.6 °C
22 April 2014
Coldest day
13.3 °C
9 January 2013
Wettest day
243 mm
11 June 2018
Windiest day
77.3 km/h
30 April 1991
Strongest gust
131.4 km/h
30 April 1991
Hottest feels-like
42.6 °C
24 May 2024
Coldest feels-like
10.7 °C
9 January 2013
Sunniest day
12.8 h
3 June 1946
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 | 23.8 °C | +0.3 °C | 0 mm | -8 mm |
| Feb | 26.1 °C | +1.0 °C | 2 mm | -15 mm |
| Mar | 28.5 °C | +0.7 °C | 0 mm | -61 mm |
| Apr | 29.5 °C | +0.4 °C | 104 mm | -55 mm |
| May | 30.2 °C | +0.7 °C | 505 mm | +168 mm |
| Jun | 29.0 °C | +0.1 °C | 792 mm | +81 mm |
| Jul | 28.4 °C | +0.2 °C | 867 mm | +148 mm |
| Aug | 28.6 °C | +0.4 °C | 617 mm | +46 mm |
| Sep | 29.5 °C | +0.9 °C | 385 mm | -40 mm |
| Oct | 29.8 °C | +1.0 °C | 179 mm | -80 mm |
| Nov | 28.5 °C | +1.2 °C | 25 mm | -41 mm |
| Dec | 24.9 °C | +0.2 °C | 0 mm | -19 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 Sandwīp?
Sandwīp has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 3,351 mm of precipitation per year.
What is the hottest day ever recorded in Sandwīp?
The hottest day measured in Sandwīp between 1940 and 2025 was 22 April 2014, reaching 34.6 °C.
What is the coldest day in Sandwīp?
The coldest day measured in Sandwīp between 1940 and 2025 was 9 January 2013, at 13.3 °C.
Does it snow in Sandwīp?
Almost never: Sandwīp sees virtually no snow, with about 0 frost days per year.
Has the climate of Sandwīp warmed?
Yes: Sandwīp warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sandwīp?
The wettest day measured in Sandwīp between 1940 and 2025 was 11 June 2018, with 243 mm of rain in 24 hours.
What was the windiest day in Sandwīp?
The windiest day measured in Sandwīp between 1940 and 2025 was 30 April 1991, with winds reaching 77.3 km/h.
What is the warmest month in Sandwīp?
The warmest month in Sandwīp is May (28.3 °C on average); the coldest is January (20.6 °C).
How much does it rain in Sandwīp?
Sandwīp receives on average 3,351 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Sandwīp?
Sandwīp gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Sandwīp?
Yes: Sandwīp has on average 298 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sandwīp?
In Sandwīp, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 24 May 2024, and the lowest was 10.7 °C on 9 January 2013.
Compare Sandwīp with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sandwīp