Chennimalai climate — normals and trends
Chennimalai (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.3 °C and it receives 842 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 April (30.9 °C on average) and the coldest is December (24.7 °C). Rainfall peaks in October.
Chennimalai averages 0 frost days, 288 hot days (≥ 30 °C) and 135 rainy days per year.
Chennimalai has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.8 °C (on 10 May 1993) and the coldest 13.7 °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
ChennimalaiTamil Nadu
- coords
- 11.16°, 77.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.3°C
Average daily high
32.7°C
Average daily low
23.1°C
Annual rainfall
842mm
Sunshine / day
10.3h
Mean relative humidity
66%
Average peak wind
14.3km/h
Seasonal range
6.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
288 d/yr
Rainy days (≥ 1 mm)
135 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.5 °C
Average feels-like low
26.0 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
334 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.64 · 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
41.8 °C
10 May 1993
Coldest day
13.7 °C
26 December 1941
Wettest day
141 mm
21 October 1963
Windiest day
34.2 km/h
21 June 1953
Strongest gust
76.7 km/h
4 June 1981
Hottest feels-like
46.8 °C
2 May 2024
Coldest feels-like
14.1 °C
26 December 1941
Sunniest day
12.2 h
23 May 1981
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 | 29.7 °C | -1.1 °C | 11 mm | -1 mm |
| Feb | 33.3 °C | -0.2 °C | 1 mm | -9 mm |
| Mar | 35.4 °C | -0.8 °C | 24 mm | +4 mm |
| Apr | 37.1 °C | -0.2 °C | 47 mm | +1 mm |
| May | 34.9 °C | -1.6 °C | 123 mm | +63 mm |
| Jun | 32.3 °C | -0.5 °C | 69 mm | -9 mm |
| Jul | 31.1 °C | -0.1 °C | 154 mm | +35 mm |
| Aug | 30.9 °C | -0.5 °C | 116 mm | +20 mm |
| Sep | 31.8 °C | -0.5 °C | 61 mm | -22 mm |
| Oct | 31.3 °C | -0.2 °C | 192 mm | +41 mm |
| Nov | 30.1 °C | +0.3 °C | 69 mm | -52 mm |
| Dec | 29.9 °C | +0.5 °C | 15 mm | -33 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 Chennimalai?
Chennimalai has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 842 mm of precipitation per year.
What is the hottest day ever recorded in Chennimalai?
The hottest day measured in Chennimalai between 1940 and 2025 was 10 May 1993, reaching 41.8 °C.
What is the coldest day in Chennimalai?
The coldest day measured in Chennimalai between 1940 and 2025 was 26 December 1941, at 13.7 °C.
Does it snow in Chennimalai?
Almost never: Chennimalai sees virtually no snow, with about 0 frost days per year.
Has the climate of Chennimalai warmed?
Yes: Chennimalai warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chennimalai?
The wettest day measured in Chennimalai between 1940 and 2025 was 21 October 1963, with 141 mm of rain in 24 hours.
What was the windiest day in Chennimalai?
The windiest day measured in Chennimalai between 1940 and 2025 was 21 June 1953, with winds reaching 34.2 km/h.
What is the warmest month in Chennimalai?
The warmest month in Chennimalai is April (30.9 °C on average); the coldest is December (24.7 °C).
How much does it rain in Chennimalai?
Chennimalai receives on average 842 mm of precipitation per year, spread over about 135 rainy days.
Is it sunny in Chennimalai?
Chennimalai gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Chennimalai?
Yes: Chennimalai has on average 334 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chennimalai?
In Chennimalai, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 2 May 2024, and the lowest was 14.1 °C on 26 December 1941.
Compare Chennimalai with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chennimalai