Sonāmukhi climate — normals and trends
Sonāmukhi (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 1,384 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 (30.9 °C on average) and the coldest is January (18.0 °C). Rainfall peaks in July.
Sonāmukhi averages 0 frost days, 223 hot days (≥ 30 °C) and 146 rainy days per year.
Sonāmukhi has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 47.7 °C (on 29 May 1957) and the coldest 6.0 °C (on 25 January 1953).
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
SonāmukhiWest Bengal
- coords
- 23.31°, 87.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
31.1°C
Average daily low
21.4°C
Annual rainfall
1,384mm
Sunshine / day
9.7h
Mean relative humidity
72%
Average peak wind
12.0km/h
Seasonal range
12.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
223 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.5 °C
Average feels-like low
24.0 °C
Average peak gust
26.8 km/h
Tropical nights (≥ 20 °C)
234 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.19 · 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
47.7 °C
29 May 1957
Coldest day
6.0 °C
25 January 1953
Wettest day
186 mm
14 June 2002
Windiest day
45.3 km/h
25 May 2009
Strongest gust
100.1 km/h
25 May 2009
Hottest feels-like
50.2 °C
19 May 2002
Coldest feels-like
3.5 °C
25 January 1953
Sunniest day
12.9 h
4 July 2000
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 | 24.9 °C | +0.1 °C | 0 mm | -13 mm |
| Feb | 29.1 °C | +0.8 °C | 29 mm | +5 mm |
| Mar | 33.5 °C | +0.1 °C | 14 mm | -17 mm |
| Apr | 36.4 °C | -0.6 °C | 41 mm | -13 mm |
| May | 35.5 °C | -1.3 °C | 129 mm | +12 mm |
| Jun | 33.8 °C | -0.5 °C | 384 mm | +148 mm |
| Jul | 31.2 °C | -0.5 °C | 519 mm | +225 mm |
| Aug | 31.8 °C | +0.4 °C | 297 mm | +29 mm |
| Sep | 32.7 °C | +1.4 °C | 264 mm | +45 mm |
| Oct | 31.9 °C | +1.4 °C | 93 mm | -7 mm |
| Nov | 28.8 °C | +0.5 °C | 0 mm | -18 mm |
| Dec | 24.3 °C | -1.1 °C | 0 mm | -11 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 Sonāmukhi?
Sonāmukhi has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 1,384 mm of precipitation per year.
What is the hottest day ever recorded in Sonāmukhi?
The hottest day measured in Sonāmukhi between 1940 and 2025 was 29 May 1957, reaching 47.7 °C.
What is the coldest day in Sonāmukhi?
The coldest day measured in Sonāmukhi between 1940 and 2025 was 25 January 1953, at 6.0 °C.
Does it snow in Sonāmukhi?
Almost never: Sonāmukhi sees virtually no snow, with about 0 frost days per year.
Has the climate of Sonāmukhi warmed?
Yes: Sonāmukhi warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sonāmukhi?
The wettest day measured in Sonāmukhi between 1940 and 2025 was 14 June 2002, with 186 mm of rain in 24 hours.
What was the windiest day in Sonāmukhi?
The windiest day measured in Sonāmukhi between 1940 and 2025 was 25 May 2009, with winds reaching 45.3 km/h.
What is the warmest month in Sonāmukhi?
The warmest month in Sonāmukhi is May (30.9 °C on average); the coldest is January (18.0 °C).
How much does it rain in Sonāmukhi?
Sonāmukhi receives on average 1,384 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Sonāmukhi?
Sonāmukhi gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Sonāmukhi?
Yes: Sonāmukhi has on average 234 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sonāmukhi?
In Sonāmukhi, between 1940 and 2025, the highest apparent temperature reached 50.2 °C on 19 May 2002, and the lowest was 3.5 °C on 25 January 1953.
Compare Sonāmukhi with another city
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Nearby cities
The climate around Sonāmukhi