Alwar climate — normals and trends
Alwar (India) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 670 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 June (33.9 °C on average) and the coldest is January (14.2 °C). Rainfall peaks in August.
Alwar averages 0 frost days, 224 hot days (≥ 30 °C) and 78 rainy days per year.
No statistically significant temperature trend emerges for Alwar between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 47.4 °C (on 8 June 1942) and the coldest 2.1 °C (on 12 January 1945).
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
AlwarRajasthan
- coords
- 27.56°, 76.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.1°C
Average daily high
31.4°C
Average daily low
19.9°C
Annual rainfall
670mm
Sunshine / day
10.5h
Mean relative humidity
54%
Average peak wind
13.5km/h
Seasonal range
19.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
224 d/yr
Rainy days (≥ 1 mm)
78 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.5 °C
Average feels-like low
20.2 °C
Average peak gust
28.5 km/h
Tropical nights (≥ 20 °C)
198 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
47.4 °C
8 June 1942
Coldest day
2.1 °C
12 January 1945
Wettest day
194 mm
22 July 1949
Windiest day
36.5 km/h
15 March 1956
Strongest gust
75.6 km/h
3 November 1981
Hottest feels-like
49.4 °C
31 May 2006
Coldest feels-like
-2.2 °C
10 February 1950
Sunniest day
13.2 h
14 June 1945
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 | 20.2 °C | -0.8 °C | 30 mm | +13 mm |
| Feb | 25.8 °C | +0.7 °C | 8 mm | -6 mm |
| Mar | 31.9 °C | +0.8 °C | 5 mm | -6 mm |
| Apr | 38.4 °C | +1.3 °C | 8 mm | -0 mm |
| May | 37.4 °C | -3.1 °C | 11 mm | -5 mm |
| Jun | 35.6 °C | -3.7 °C | 131 mm | +77 mm |
| Jul | 32.0 °C | -1.9 °C | 299 mm | +93 mm |
| Aug | 32.5 °C | +0.6 °C | 140 mm | -69 mm |
| Sep | 33.3 °C | +0.5 °C | 89 mm | -8 mm |
| Oct | 29.8 °C | -2.7 °C | 68 mm | +45 mm |
| Nov | 26.8 °C | -1.2 °C | 6 mm | -0 mm |
| Dec | 23.2 °C | +0.2 °C | 0 mm | -8 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 Alwar?
Alwar has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 670 mm of precipitation per year.
What is the hottest day ever recorded in Alwar?
The hottest day measured in Alwar between 1940 and 2025 was 8 June 1942, reaching 47.4 °C.
What is the coldest day in Alwar?
The coldest day measured in Alwar between 1940 and 2025 was 12 January 1945, at 2.1 °C.
Does it snow in Alwar?
Almost never: Alwar sees virtually no snow, with about 0 frost days per year.
Has the climate of Alwar warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Alwar.
What is the wettest day in Alwar?
The wettest day measured in Alwar between 1940 and 2025 was 22 July 1949, with 194 mm of rain in 24 hours.
What was the windiest day in Alwar?
The windiest day measured in Alwar between 1940 and 2025 was 15 March 1956, with winds reaching 36.5 km/h.
What is the warmest month in Alwar?
The warmest month in Alwar is June (33.9 °C on average); the coldest is January (14.2 °C).
How much does it rain in Alwar?
Alwar receives on average 670 mm of precipitation per year, spread over about 78 rainy days.
Is it sunny in Alwar?
Alwar gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Alwar?
Yes: Alwar has on average 198 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Alwar?
In Alwar, between 1940 and 2025, the highest apparent temperature reached 49.4 °C on 31 May 2006, and the lowest was -2.2 °C on 10 February 1950.
Compare Alwar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alwar