Cheyyar climate — normals and trends
Cheyyar (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.1 °C and it receives 850 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 (23.9 °C). Rainfall peaks in October.
Cheyyar averages 0 frost days, 284 hot days (≥ 30 °C) and 120 rainy days per year.
Cheyyar has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.8 °C (on 8 May 1964) and the coldest 13.4 °C (on 26 December 1941).
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
CheyyarTamil Nadu
- coords
- 12.66°, 79.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
28.1°C
Average daily high
33.4°C
Average daily low
24.0°C
Annual rainfall
850mm
Sunshine / day
10.0h
Mean relative humidity
68%
Average peak wind
15.0km/h
Seasonal range
8.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
284 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.5 °C
Average feels-like low
27.4 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
318 d/yr
Solar radiation
19.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.37 · 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
44.8 °C
8 May 1964
Coldest day
13.4 °C
26 December 1941
Wettest day
172 mm
14 June 1996
Windiest day
47.7 km/h
12 December 2016
Strongest gust
100.4 km/h
12 December 2016
Hottest feels-like
48.1 °C
31 May 2024
Coldest feels-like
13.4 °C
26 December 1941
Sunniest day
12.6 h
24 May 1981
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 | 29.3 °C | +0.1 °C | 14 mm | -4 mm |
| Feb | 32.9 °C | +0.9 °C | 0 mm | -8 mm |
| Mar | 35.1 °C | +0.2 °C | 27 mm | +11 mm |
| Apr | 37.4 °C | +0.2 °C | 16 mm | -3 mm |
| May | 36.3 °C | -2.3 °C | 122 mm | +73 mm |
| Jun | 37.0 °C | +0.3 °C | 26 mm | -37 mm |
| Jul | 36.4 °C | +1.2 °C | 49 mm | -30 mm |
| Aug | 34.1 °C | -0.4 °C | 116 mm | +17 mm |
| Sep | 34.2 °C | +0.4 °C | 71 mm | -46 mm |
| Oct | 31.6 °C | +0.1 °C | 186 mm | +25 mm |
| Nov | 30.2 °C | +0.9 °C | 103 mm | -43 mm |
| Dec | 28.8 °C | +0.6 °C | 71 mm | -6 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 Cheyyar?
Cheyyar has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.1 °C and it receives 850 mm of precipitation per year.
What is the hottest day ever recorded in Cheyyar?
The hottest day measured in Cheyyar between 1940 and 2025 was 8 May 1964, reaching 44.8 °C.
What is the coldest day in Cheyyar?
The coldest day measured in Cheyyar between 1940 and 2025 was 26 December 1941, at 13.4 °C.
Does it snow in Cheyyar?
Almost never: Cheyyar sees virtually no snow, with about 0 frost days per year.
Has the climate of Cheyyar warmed?
Yes: Cheyyar warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cheyyar?
The wettest day measured in Cheyyar between 1940 and 2025 was 14 June 1996, with 172 mm of rain in 24 hours.
What was the windiest day in Cheyyar?
The windiest day measured in Cheyyar between 1940 and 2025 was 12 December 2016, with winds reaching 47.7 km/h.
What is the warmest month in Cheyyar?
The warmest month in Cheyyar is May (32.2 °C on average); the coldest is January (23.9 °C).
How much does it rain in Cheyyar?
Cheyyar receives on average 850 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Cheyyar?
Cheyyar gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Cheyyar?
Yes: Cheyyar has on average 318 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cheyyar?
In Cheyyar, between 1940 and 2025, the highest apparent temperature reached 48.1 °C on 31 May 2024, and the lowest was 13.4 °C on 26 December 1941.
Compare Cheyyar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cheyyar