Marthandam climate — normals and trends

Q: What is the climate of Marthandam?

Marthandam has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.5 °C and it receives 1,241 mm of precipitation per year.

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

The hottest day measured in Marthandam between 1940 and 2025 was 12 April 2019, reaching 35.7 °C.

Q: What is the coldest day in Marthandam?

The coldest day measured in Marthandam between 1940 and 2025 was 27 December 1941, at 18.3 °C.

Q: Does it snow in Marthandam?

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

Q: Has the climate of Marthandam warmed?

Yes: Marthandam warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Marthandam?

The wettest day measured in Marthandam between 1940 and 2025 was 13 November 1992, with 185 mm of rain in 24 hours.

Q: What was the windiest day in Marthandam?

The windiest day measured in Marthandam between 1940 and 2025 was 27 May 1941, with winds reaching 45.2 km/h.

Q: What is the warmest month in Marthandam?

The warmest month in Marthandam is April (28.1 °C on average); the coldest is July (25.7 °C).

Q: How much does it rain in Marthandam?

Marthandam receives on average 1,241 mm of precipitation per year, spread over about 180 rainy days.

Q: Is it sunny in Marthandam?

Marthandam gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Marthandam (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.5 °C and it receives 1,241 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 (28.1 °C on average) and the coldest is July (25.7 °C). Rainfall peaks in November.

Marthandam averages 0 frost days, 140 hot days (≥ 30 °C) and 180 rainy days per year.

Marthandam has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.7 °C (on 12 April 2019) and the coldest 18.3 °C (on 27 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

MarthandamTamil Nadu

coords: 8.31°, 77.22°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJulyWettest monthNovemberDriest monthFebruary

Mean daily temperature

26.5°C

Average daily high

29.5°C

Average daily low

24.2°C

Annual rainfall

1,241mm

Sunshine / day

10.6h

Mean relative humidity

79%

Average peak wind

17.8km/h

Seasonal range

2.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

140 d/yr

Rainy days (≥ 1 mm)

180 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.5 °C

Average feels-like low

27.4 °C

Average peak gust

39.7 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

20.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.3 °C per decade · r² = 0.86 · 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

35.7 °C

12 April 2019

Coldest day

18.3 °C

27 December 1941

Wettest day

185 mm

13 November 1992

Windiest day

45.2 km/h

27 May 1941

Strongest gust

95.8 km/h

30 November 2017

Hottest feels-like

41.7 °C

26 April 2016

Coldest feels-like

17.6 °C

1 January 1951

Sunniest day

12.1 h

24 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.5 °C29 March 2025	20.2 °C21 December 2025	27.0 °C	1,570 mm	154
2024	35.6 °C25 March 2024	22.7 °C25 December 2024	27.7 °C	1,663 mm	170
2023	34.8 °C18 April 2023	21.4 °C13 January 2023	27.7 °C	1,838 mm	257
2022	33.9 °C14 March 2022	22.9 °C31 December 2022	27.1 °C	1,475 mm	145
2021	35.2 °C6 April 2021	21.7 °C12 February 2021	27.3 °C	1,853 mm	167
2020	34.7 °C31 March 2020	22.5 °C27 January 2020	27.6 °C	1,182 mm	212
2019	35.7 °C12 April 2019	21.1 °C22 January 2019	27.7 °C	1,511 mm	196
2018	35.0 °C29 March 2018	21.6 °C20 January 2018	27.2 °C	1,271 mm	161
2017	34.7 °C8 April 2017	22.3 °C3 February 2017	27.5 °C	1,159 mm	207
2016	35.5 °C24 March 2016	21.7 °C4 February 2016	27.8 °C	699 mm	238
2015	34.3 °C21 March 2015	21.3 °C14 January 2015	27.3 °C	1,602 mm	184
2014	35.2 °C26 March 2014	21.4 °C7 February 2014	27.3 °C	1,565 mm	185
2013	34.8 °C30 April 2013	21.7 °C14 January 2013	27.3 °C	1,215 mm	190
2012	34.6 °C31 March 2012	21.0 °C18 January 2012	27.5 °C	968 mm	252
2011	33.9 °C23 March 2011	20.5 °C20 January 2011	27.1 °C	1,174 mm	180
2010	34.5 °C19 March 2010	22.3 °C13 December 2010	27.3 °C	1,502 mm	147
2009	35.0 °C4 April 2009	20.0 °C1 January 2009	27.2 °C	1,358 mm	170
2008	33.8 °C8 March 2008	20.6 °C23 December 2008	26.9 °C	1,486 mm	149
2007	34.8 °C26 March 2007	20.3 °C23 January 2007	27.0 °C	1,260 mm	172
2006	34.2 °C23 March 2006	19.6 °C21 January 2006	26.9 °C	1,466 mm	150
2005	34.5 °C16 March 2005	21.1 °C28 December 2005	27.2 °C	1,382 mm	183
2004	34.5 °C20 March 2004	20.6 °C15 January 2004	27.0 °C	1,059 mm	166
2003	33.9 °C10 March 2003	20.2 °C8 December 2003	27.1 °C	974 mm	196
2002	34.1 °C12 March 2002	20.0 °C15 January 2002	26.9 °C	1,100 mm	171
2001	34.2 °C1 April 2001	20.3 °C10 December 2001	26.7 °C	996 mm	132
2000	34.1 °C16 March 2000	19.6 °C14 December 2000	26.6 °C	1,232 mm	151
1999	35.2 °C29 March 1999	20.3 °C27 January 1999	26.3 °C	1,120 mm	113
1998	34.7 °C28 March 1998	19.7 °C26 December 1998	27.2 °C	1,146 mm	167
1997	34.1 °C26 March 1997	20.7 °C26 February 1997	26.9 °C	1,151 mm	180
1996	34.5 °C27 March 1996	20.2 °C11 March 1996	26.6 °C	1,187 mm	151
1995	33.5 °C19 March 1995	21.1 °C3 January 1995	26.7 °C	984 mm	147
1994	34.0 °C21 March 1994	20.3 °C13 December 1994	26.6 °C	1,103 mm	129
1993	33.9 °C21 April 1993	20.0 °C20 January 1993	26.5 °C	993 mm	135
1992	34.4 °C12 April 1992	20.3 °C23 January 1992	26.4 °C	1,162 mm	145
1991	34.2 °C18 March 1991	19.8 °C15 February 1991	26.9 °C	1,024 mm	193
1990	33.9 °C23 April 1990	19.6 °C17 January 1990	26.8 °C	1,113 mm	174
1989	34.5 °C7 April 1989	19.8 °C5 February 1989	26.5 °C	997 mm	177
1988	34.6 °C22 March 1988	20.9 °C23 January 1988	26.8 °C	1,162 mm	151
1987	34.9 °C9 May 1987	21.4 °C13 February 1987	27.2 °C	1,155 mm	209
1986	34.2 °C22 March 1986	20.4 °C19 November 1986	26.8 °C	731 mm	201
1985	34.6 °C20 April 1985	20.8 °C26 November 1985	26.6 °C	931 mm	153
1984	34.1 °C24 March 1984	20.0 °C13 December 1984	26.2 °C	1,216 mm	108
1983	34.8 °C18 April 1983	20.3 °C9 January 1983	27.1 °C	822 mm	198
1982	34.6 °C24 April 1982	20.7 °C17 January 1982	26.8 °C	717 mm	190
1981	34.8 °C8 April 1981	20.7 °C13 December 1981	26.7 °C	896 mm	164
1980	34.1 °C12 April 1980	20.3 °C24 January 1980	26.7 °C	911 mm	174
1979	34.8 °C12 April 1979	20.3 °C5 January 1979	26.8 °C	1,104 mm	148
1978	33.8 °C22 March 1978	20.6 °C17 January 1978	26.4 °C	1,185 mm	130
1977	33.8 °C4 March 1977	20.1 °C14 January 1977	26.6 °C	981 mm	157
1976	33.9 °C20 April 1976	20.5 °C24 February 1976	26.4 °C	1,013 mm	160
1975	34.4 °C23 March 1975	20.4 °C14 January 1975	26.0 °C	1,250 mm	106
1974	33.7 °C24 March 1974	18.8 °C7 January 1974	26.2 °C	727 mm	141
1973	34.1 °C18 March 1973	20.7 °C24 December 1973	26.5 °C	1,121 mm	166
1972	34.4 °C4 April 1972	19.8 °C7 January 1972	26.5 °C	1,062 mm	139
1971	33.4 °C22 March 1971	19.6 °C22 December 1971	26.1 °C	1,115 mm	121
1970	33.4 °C9 March 1970	20.4 °C7 December 1970	26.4 °C	1,191 mm	115
1969	34.6 °C1 April 1969	21.0 °C3 February 1969	26.4 °C	1,406 mm	120
1968	33.1 °C12 March 1968	20.1 °C7 February 1968	26.1 °C	1,356 mm	117
1967	34.1 °C3 April 1967	20.3 °C19 February 1967	26.1 °C	1,535 mm	88
1966	33.6 °C27 March 1966	20.1 °C29 December 1966	26.0 °C	1,477 mm	94
1965	32.7 °C15 March 1965	20.5 °C25 February 1965	25.8 °C	1,486 mm	91
1964	34.3 °C13 March 1964	20.2 °C20 December 1964	26.0 °C	1,300 mm	121
1963	33.4 °C10 May 1963	20.3 °C31 December 1963	26.1 °C	1,176 mm	117
1962	33.3 °C22 April 1962	21.3 °C14 December 1962	26.2 °C	1,553 mm	120
1961	34.1 °C13 April 1961	20.8 °C26 February 1961	26.1 °C	1,217 mm	104
1960	33.5 °C26 March 1960	20.0 °C24 December 1960	25.8 °C	1,466 mm	93
1959	33.6 °C22 February 1959	21.5 °C6 December 1959	26.4 °C	1,039 mm	142
1958	33.9 °C8 March 1958	19.8 °C11 January 1958	26.3 °C	1,222 mm	94
1957	34.0 °C9 May 1957	20.4 °C23 January 1957	26.2 °C	1,257 mm	113
1956	33.8 °C7 April 1956	19.2 °C4 January 1956	25.5 °C	1,027 mm	91
1955	33.2 °C6 April 1955	19.1 °C20 December 1955	25.6 °C	1,504 mm	80
1954	34.2 °C9 April 1954	20.0 °C18 January 1954	25.6 °C	1,456 mm	75
1953	33.2 °C21 April 1953	20.0 °C14 February 1953	25.8 °C	1,197 mm	105
1952	33.5 °C1 April 1952	20.5 °C21 January 1952	25.7 °C	1,152 mm	104
1951	33.2 °C3 March 1951	19.7 °C7 January 1951	25.7 °C	1,597 mm	75
1950	32.5 °C25 February 1950	20.6 °C16 November 1950	25.6 °C	1,128 mm	115
1949	33.9 °C18 April 1949	20.8 °C9 November 1949	25.6 °C	1,148 mm	90
1948	32.5 °C1 March 1948	20.8 °C25 December 1948	26.1 °C	1,300 mm	119
1947	32.0 °C22 March 1947	20.6 °C16 January 1947	25.8 °C	1,227 mm	38
1946	33.4 °C14 March 1946	18.9 °C30 January 1946	25.6 °C	1,456 mm	76
1945	32.5 °C25 March 1945	19.5 °C18 January 1945	25.5 °C	1,609 mm	68
1944	32.6 °C15 March 1944	19.8 °C28 December 1944	25.6 °C	1,773 mm	68
1943	32.1 °C22 February 1943	19.5 °C19 January 1943	25.0 °C	1,546 mm	54
1942	32.4 °C1 April 1942	19.2 °C27 January 1942	25.1 °C	1,382 mm	37
1941	32.9 °C29 April 1941	18.3 °C27 December 1941	25.3 °C	1,463 mm	75
1940	33.4 °C3 April 1940	19.1 °C20 February 1940	25.2 °C	1,425 mm	55

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

29.8 °C

+0.3 °C

Hot days (≥ 30 °C)

154 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1570 mm

+329 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.7 °C	-0.3 °C	49 mm	+31 mm
Feb	32.2 °C	+0.8 °C	4 mm	-14 mm
Mar	32.2 °C	+0.1 °C	77 mm	+35 mm
Apr	30.7 °C	-0.6 °C	156 mm	+60 mm
May	29.9 °C	-0.2 °C	173 mm	+26 mm
Jun	28.9 °C	+0.7 °C	152 mm	-19 mm
Jul	28.8 °C	+0.9 °C	223 mm	+110 mm
Aug	28.6 °C	+0.5 °C	47 mm	-42 mm
Sep	29.8 °C	+1.2 °C	64 mm	-34 mm
Oct	29.5 °C	+1.0 °C	305 mm	+112 mm
Nov	28.4 °C	0.0 °C	310 mm	+117 mm
Dec	29.1 °C	+0.2 °C	10 mm	-55 mm

The year's extremes

Hottest day

34.5 °C

29 Mar 2025

Coldest day

20.2 °C

21 Dec 2025

Wettest day

63.2 mm

24 Nov 2025

Windiest day

36.0 km/h

29 May 2025

Strongest gust

86.4 km/h

30 May 2025

Hottest feels-like

39.9 °C

30 Mar 2025

Coldest feels-like

22.2 °C

21 Dec 2025

Sunniest day

12.0 h

6 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 Marthandam?

Marthandam has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.5 °C and it receives 1,241 mm of precipitation per year.

What is the hottest day ever recorded in Marthandam?

The hottest day measured in Marthandam between 1940 and 2025 was 12 April 2019, reaching 35.7 °C.

What is the coldest day in Marthandam?

The coldest day measured in Marthandam between 1940 and 2025 was 27 December 1941, at 18.3 °C.

Does it snow in Marthandam?

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

Has the climate of Marthandam warmed?

Yes: Marthandam warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Marthandam?

The wettest day measured in Marthandam between 1940 and 2025 was 13 November 1992, with 185 mm of rain in 24 hours.

What was the windiest day in Marthandam?

The windiest day measured in Marthandam between 1940 and 2025 was 27 May 1941, with winds reaching 45.2 km/h.

What is the warmest month in Marthandam?

The warmest month in Marthandam is April (28.1 °C on average); the coldest is July (25.7 °C).

How much does it rain in Marthandam?

Marthandam receives on average 1,241 mm of precipitation per year, spread over about 180 rainy days.

Is it sunny in Marthandam?

Marthandam gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Marthandam?

Yes: Marthandam has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Marthandam?

In Marthandam, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 26 April 2016, and the lowest was 17.6 °C on 1 January 1951.

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