Ponneri climate — normals and trends

Q: What is the climate of Ponneri?

Ponneri has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.0 °C and it receives 949 mm of precipitation per year.

Q: What is the hottest day ever recorded in Ponneri?

The hottest day measured in Ponneri between 1940 and 2025 was 28 May 1964, reaching 39.3 °C.

Q: What is the coldest day in Ponneri?

The coldest day measured in Ponneri between 1940 and 2025 was 26 December 1941, at 17.1 °C.

Q: Does it snow in Ponneri?

Almost never: Ponneri sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Ponneri warmed?

Yes: Ponneri warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Ponneri?

The wettest day measured in Ponneri between 1940 and 2025 was 4 December 2023, with 257 mm of rain in 24 hours.

Q: What was the windiest day in Ponneri?

The windiest day measured in Ponneri between 1940 and 2025 was 12 December 2016, with winds reaching 72.3 km/h.

Q: What is the warmest month in Ponneri?

The warmest month in Ponneri is May (31.1 °C on average); the coldest is January (24.6 °C).

Q: How much does it rain in Ponneri?

Ponneri receives on average 949 mm of precipitation per year, spread over about 116 rainy days.

Q: Is it sunny in Ponneri?

Ponneri gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

Ponneri (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.0 °C and it receives 949 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 (31.1 °C on average) and the coldest is January (24.6 °C). Rainfall peaks in November.

Ponneri averages 0 frost days, 225 hot days (≥ 30 °C) and 116 rainy days per year.

Ponneri has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.3 °C (on 28 May 1964) and the coldest 17.1 °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

PonneriTamil Nadu

coords: 13.34°, 80.19°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthNovemberDriest monthFebruary

Mean daily temperature

28.0°C

Average daily high

31.0°C

Average daily low

25.7°C

Annual rainfall

949mm

Sunshine / day

10.2h

Mean relative humidity

73%

Average peak wind

18.7km/h

Seasonal range

6.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

225 d/yr

Rainy days (≥ 1 mm)

116 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.3 °C

Average feels-like low

29.0 °C

Average peak gust

33.8 km/h

Tropical nights (≥ 20 °C)

363 d/yr

Solar radiation

19.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.9 °C

since 1940

+0.1 °C per decade · r² = 0.54 · p = < 0.001

19402025

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

39.3 °C

28 May 1964

Coldest day

17.1 °C

26 December 1941

Wettest day

257 mm

4 December 2023

Windiest day

72.3 km/h

12 December 2016

Strongest gust

128.9 km/h

12 December 2016

Hottest feels-like

46.3 °C

16 May 2023

Coldest feels-like

15.6 °C

12 December 2016

Sunniest day

12.8 h

7 June 1958

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.1 °C7 July 2025	21.6 °C20 December 2025	28.7 °C	958 mm	239
2024	37.5 °C28 May 2024	22.3 °C17 January 2024	29.0 °C	1,290 mm	256
2023	37.5 °C16 May 2023	20.5 °C15 January 2023	28.6 °C	1,245 mm	236
2022	35.7 °C1 June 2022	21.2 °C3 February 2022	28.5 °C	1,284 mm	219
2021	36.5 °C12 June 2021	21.4 °C23 December 2021	28.4 °C	1,449 mm	235
2020	37.8 °C20 May 2020	21.2 °C14 January 2020	28.6 °C	1,116 mm	245
2019	37.8 °C9 June 2019	20.3 °C9 January 2019	28.8 °C	866 mm	253
2018	37.0 °C16 July 2018	19.5 °C2 February 2018	28.5 °C	814 mm	227
2017	37.8 °C18 May 2017	20.6 °C10 February 2017	28.7 °C	1,110 mm	237
2016	36.9 °C22 April 2016	20.8 °C24 December 2016	28.6 °C	977 mm	248
2015	38.1 °C24 May 2015	21.4 °C13 January 2015	28.6 °C	1,230 mm	239
2014	38.4 °C23 May 2014	20.4 °C8 February 2014	28.5 °C	933 mm	221
2013	38.2 °C24 May 2013	20.7 °C15 January 2013	28.2 °C	881 mm	230
2012	37.4 °C19 May 2012	18.4 °C17 January 2012	28.4 °C	707 mm	241
2011	37.5 °C8 May 2011	19.5 °C14 February 2011	28.1 °C	939 mm	226
2010	36.9 °C11 May 2010	20.9 °C9 February 2010	28.2 °C	1,235 mm	236
2009	37.1 °C21 July 2009	19.7 °C24 January 2009	28.5 °C	811 mm	240
2008	37.4 °C5 May 2008	19.5 °C20 January 2008	28.0 °C	1,141 mm	214
2007	37.6 °C14 May 2007	20.2 °C25 December 2007	27.8 °C	1,178 mm	214
2006	37.1 °C28 April 2006	19.0 °C15 February 2006	28.1 °C	843 mm	225
2005	37.0 °C17 June 2005	20.0 °C11 January 2005	28.2 °C	1,408 mm	230
2004	36.4 °C18 April 2004	20.0 °C15 January 2004	28.0 °C	942 mm	206
2003	38.3 °C22 May 2003	19.9 °C31 January 2003	28.3 °C	641 mm	231
2002	37.3 °C11 May 2002	19.7 °C21 December 2002	28.2 °C	593 mm	224
2001	37.4 °C13 May 2001	20.2 °C10 February 2001	28.4 °C	1,164 mm	230
2000	38.0 °C14 May 2000	19.8 °C23 January 2000	28.0 °C	663 mm	219
1999	36.5 °C14 April 1999	20.1 °C27 January 1999	28.2 °C	603 mm	222
1998	38.4 °C28 May 1998	21.4 °C24 December 1998	28.6 °C	809 mm	243
1997	37.5 °C29 May 1997	19.1 °C16 February 1997	28.0 °C	984 mm	216
1996	37.0 °C13 May 1996	20.4 °C26 January 1996	27.8 °C	1,492 mm	217
1995	37.2 °C7 June 1995	19.9 °C23 January 1995	27.9 °C	957 mm	217
1994	36.7 °C9 May 1994	19.3 °C30 January 1994	28.0 °C	804 mm	222
1993	36.6 °C14 July 1993	19.2 °C19 January 1993	28.0 °C	1,067 mm	218
1992	37.0 °C23 May 1992	18.5 °C7 January 1992	27.9 °C	579 mm	235
1991	37.1 °C29 April 1991	19.7 °C29 January 1991	28.1 °C	917 mm	228
1990	37.1 °C20 April 1990	17.6 °C15 January 1990	28.0 °C	1,127 mm	231
1989	36.3 °C24 May 1989	17.5 °C4 February 1989	27.6 °C	1,008 mm	208
1988	37.1 °C10 May 1988	20.3 °C7 February 1988	28.1 °C	1,001 mm	229
1987	37.3 °C5 June 1987	20.5 °C13 February 1987	28.1 °C	1,050 mm	219
1986	37.3 °C18 May 1986	20.1 °C23 February 1986	28.2 °C	992 mm	221
1985	37.6 °C28 May 1985	20.1 °C27 February 1985	28.0 °C	1,064 mm	220
1984	37.0 °C31 May 1984	19.2 °C12 December 1984	27.9 °C	1,451 mm	211
1983	38.2 °C31 May 1983	19.3 °C10 January 1983	28.2 °C	753 mm	248
1982	36.5 °C28 May 1982	20.5 °C12 January 1982	28.1 °C	404 mm	233
1981	36.9 °C19 May 1981	17.8 °C11 December 1981	27.6 °C	882 mm	206
1980	38.7 °C23 May 1980	20.3 °C1 January 1980	28.2 °C	815 mm	235
1979	37.5 °C27 June 1979	20.7 °C31 December 1979	28.2 °C	810 mm	220
1978	37.4 °C18 May 1978	17.6 °C19 January 1978	28.0 °C	889 mm	216
1977	36.2 °C2 June 1977	18.4 °C27 January 1977	27.9 °C	750 mm	199
1976	38.2 °C5 May 1976	18.9 °C22 February 1976	27.8 °C	917 mm	237
1975	37.4 °C12 May 1975	18.9 °C11 January 1975	27.9 °C	1,078 mm	217
1974	36.1 °C31 May 1974	19.1 °C6 February 1974	27.8 °C	490 mm	223
1973	37.6 °C13 May 1973	19.7 °C10 December 1973	28.1 °C	783 mm	222
1972	38.3 °C5 June 1972	19.2 °C6 January 1972	28.0 °C	776 mm	218
1971	36.6 °C4 May 1971	19.8 °C21 December 1971	27.7 °C	903 mm	209
1970	37.4 °C19 May 1970	19.8 °C3 December 1970	27.9 °C	794 mm	223
1969	36.7 °C9 June 1969	18.5 °C27 January 1969	28.1 °C	1,180 mm	223
1968	37.1 °C11 June 1968	20.2 °C7 February 1968	27.9 °C	1,097 mm	200
1967	38.0 °C2 June 1967	18.5 °C7 February 1967	27.6 °C	1,136 mm	200
1966	39.0 °C24 May 1966	19.5 °C5 February 1966	27.5 °C	1,507 mm	193
1965	39.0 °C28 May 1965	19.2 °C14 January 1965	27.6 °C	1,108 mm	219
1964	39.3 °C28 May 1964	19.1 °C14 January 1964	27.8 °C	1,013 mm	224
1963	37.9 °C27 May 1963	19.2 °C10 February 1963	27.7 °C	785 mm	215
1962	36.4 °C2 May 1962	20.4 °C12 January 1962	27.5 °C	935 mm	205
1961	36.4 °C25 May 1961	20.4 °C27 December 1961	27.7 °C	660 mm	223
1960	37.8 °C25 May 1960	18.6 °C4 February 1960	27.9 °C	886 mm	218
1959	38.4 °C27 May 1959	20.8 °C13 February 1959	28.0 °C	693 mm	237
1958	38.3 °C7 June 1958	20.1 °C8 February 1958	28.2 °C	947 mm	245
1957	36.9 °C31 May 1957	19.3 °C24 January 1957	27.8 °C	657 mm	227
1956	38.9 °C13 May 1956	19.3 °C18 February 1956	27.3 °C	1,133 mm	202
1955	37.1 °C11 May 1955	19.5 °C19 December 1955	27.3 °C	1,315 mm	208
1954	38.1 °C28 May 1954	18.6 °C20 January 1954	27.6 °C	921 mm	232
1953	37.9 °C12 May 1953	20.3 °C30 January 1953	27.9 °C	754 mm	213
1952	38.5 °C19 May 1952	20.1 °C21 January 1952	28.3 °C	440 mm	263
1951	37.3 °C14 May 1951	19.6 °C16 December 1951	28.0 °C	829 mm	234
1950	37.2 °C22 May 1950	19.5 °C2 January 1950	27.8 °C	590 mm	240
1949	36.9 °C23 April 1949	20.6 °C31 January 1949	27.7 °C	766 mm	225
1948	38.0 °C18 May 1948	21.5 °C21 January 1948	28.1 °C	1,016 mm	217
1947	37.1 °C24 May 1947	20.4 °C10 February 1947	27.9 °C	827 mm	216
1946	38.9 °C1 May 1946	18.5 °C25 January 1946	27.8 °C	1,176 mm	227
1945	38.7 °C17 May 1945	18.7 °C7 February 1945	27.9 °C	706 mm	232
1944	37.0 °C30 May 1944	19.9 °C26 January 1944	27.7 °C	1,004 mm	208
1943	37.0 °C28 April 1943	20.1 °C20 January 1943	27.1 °C	1,684 mm	201
1942	36.1 °C19 June 1942	18.2 °C1 January 1942	27.2 °C	748 mm	217
1941	38.5 °C26 April 1941	17.1 °C26 December 1941	27.8 °C	1,234 mm	225
1940	37.7 °C3 June 1940	17.9 °C17 January 1940	27.9 °C	536 mm	245

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?

Year

Across the whole year

Average daily high

31.4 °C

+0.4 °C

Hot days (≥ 30 °C)

239 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

958 mm

+9 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.8 °C	+0.7 °C	23 mm	-2 mm
Feb	29.6 °C	+0.8 °C	0 mm	-8 mm
Mar	31.8 °C	+0.6 °C	11 mm	-1 mm
Apr	33.2 °C	-0.1 °C	4 mm	-8 mm
May	33.9 °C	-0.8 °C	75 mm	+39 mm
Jun	35.0 °C	+0.6 °C	34 mm	-17 mm
Jul	34.0 °C	+0.8 °C	83 mm	+10 mm
Aug	32.3 °C	-0.2 °C	111 mm	+19 mm
Sep	32.6 °C	+0.7 °C	48 mm	-52 mm
Oct	30.3 °C	+0.2 °C	261 mm	+81 mm
Nov	29.1 °C	+1.0 °C	200 mm	-37 mm
Dec	27.3 °C	+0.3 °C	109 mm	-14 mm

The year's extremes

Hottest day

36.1 °C

7 Jul 2025

Coldest day

21.6 °C

20 Dec 2025

Wettest day

79.4 mm

30 Nov 2025

Windiest day

39.2 km/h

1 Dec 2025

Strongest gust

56.2 km/h

1 Dec 2025

Hottest feels-like

43.5 °C

4 May 2025

Coldest feels-like

23.7 °C

20 Dec 2025

Sunniest day

12.4 h

8 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Ponneri?

Ponneri has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.0 °C and it receives 949 mm of precipitation per year.

What is the hottest day ever recorded in Ponneri?

The hottest day measured in Ponneri between 1940 and 2025 was 28 May 1964, reaching 39.3 °C.

What is the coldest day in Ponneri?

The coldest day measured in Ponneri between 1940 and 2025 was 26 December 1941, at 17.1 °C.

Does it snow in Ponneri?

Almost never: Ponneri sees virtually no snow, with about 0 frost days per year.

Has the climate of Ponneri warmed?

Yes: Ponneri warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Ponneri?

The wettest day measured in Ponneri between 1940 and 2025 was 4 December 2023, with 257 mm of rain in 24 hours.

What was the windiest day in Ponneri?

The windiest day measured in Ponneri between 1940 and 2025 was 12 December 2016, with winds reaching 72.3 km/h.

What is the warmest month in Ponneri?

The warmest month in Ponneri is May (31.1 °C on average); the coldest is January (24.6 °C).

How much does it rain in Ponneri?

Ponneri receives on average 949 mm of precipitation per year, spread over about 116 rainy days.

Is it sunny in Ponneri?

Ponneri gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

Are there tropical nights in Ponneri?

Yes: Ponneri has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ponneri?

In Ponneri, between 1940 and 2025, the highest apparent temperature reached 46.3 °C on 16 May 2023, and the lowest was 15.6 °C on 12 December 2016.

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