Mairwa climate — normals and trends
Mairwa (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,215 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 (32.2 °C on average) and the coldest is January (15.8 °C). Rainfall peaks in July.
Mairwa averages 0 frost days, 224 hot days (≥ 30 °C) and 115 rainy days per year.
Mairwa has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.6 °C (on 9 June 1966) and the coldest 2.2 °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
MairwaBihar
- coords
- 26.23°, 84.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
31.2°C
Average daily low
20.6°C
Annual rainfall
1,215mm
Sunshine / day
10.0h
Mean relative humidity
66%
Average peak wind
15.2km/h
Seasonal range
16.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
224 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.5 °C
Average feels-like low
22.1 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
214 d/yr
Solar radiation
18.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.17 · 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
46.6 °C
9 June 1966
Coldest day
2.2 °C
9 January 2013
Wettest day
248 mm
5 October 1978
Windiest day
46.1 km/h
19 July 1975
Strongest gust
89.3 km/h
14 October 2013
Hottest feels-like
50.4 °C
29 May 2024
Coldest feels-like
-0.8 °C
9 January 2013
Sunniest day
13.0 h
14 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 20.9 °C | -1.7 °C | 0 mm | -20 mm |
| Feb | 26.7 °C | +0.4 °C | 0 mm | -19 mm |
| Mar | 32.6 °C | 0.0 °C | 3 mm | -11 mm |
| Apr | 36.1 °C | -1.6 °C | 32 mm | +16 mm |
| May | 36.7 °C | -1.7 °C | 43 mm | +8 mm |
| Jun | 36.7 °C | +0.3 °C | 150 mm | -10 mm |
| Jul | 34.1 °C | +1.5 °C | 221 mm | -121 mm |
| Aug | 32.6 °C | +0.5 °C | 423 mm | +116 mm |
| Sep | 32.9 °C | +1.3 °C | 266 mm | +49 mm |
| Oct | 30.8 °C | 0.0 °C | 265 mm | +198 mm |
| Nov | 28.2 °C | -0.2 °C | 6 mm | -3 mm |
| Dec | 21.6 °C | -2.9 °C | 0 mm | -9 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 Mairwa?
Mairwa has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,215 mm of precipitation per year.
What is the hottest day ever recorded in Mairwa?
The hottest day measured in Mairwa between 1940 and 2025 was 9 June 1966, reaching 46.6 °C.
What is the coldest day in Mairwa?
The coldest day measured in Mairwa between 1940 and 2025 was 9 January 2013, at 2.2 °C.
Does it snow in Mairwa?
Almost never: Mairwa sees virtually no snow, with about 0 frost days per year.
Has the climate of Mairwa warmed?
Yes: Mairwa warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mairwa?
The wettest day measured in Mairwa between 1940 and 2025 was 5 October 1978, with 248 mm of rain in 24 hours.
What was the windiest day in Mairwa?
The windiest day measured in Mairwa between 1940 and 2025 was 19 July 1975, with winds reaching 46.1 km/h.
What is the warmest month in Mairwa?
The warmest month in Mairwa is May (32.2 °C on average); the coldest is January (15.8 °C).
How much does it rain in Mairwa?
Mairwa receives on average 1,215 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Mairwa?
Mairwa gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Mairwa?
Yes: Mairwa has on average 214 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mairwa?
In Mairwa, between 1940 and 2025, the highest apparent temperature reached 50.4 °C on 29 May 2024, and the lowest was -0.8 °C on 9 January 2013.
Compare Mairwa with another city
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Nearby cities
The climate around Mairwa