Tirunelveli climate — normals and trends

Tirunelveli (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.2 °C and it receives 871 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 (30.7 °C on average) and the coldest is December (25.4 °C). Rainfall peaks in November.

Tirunelveli averages 0 frost days, 317 hot days (≥ 30 °C) and 119 rainy days per year.

Tirunelveli has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.

The hottest day of the period reached 42.8 °C (on 5 May 2024) and the coldest 15.6 °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

TirunelveliTamil Nadu

coords
8.73°, 77.68°
period
19402025 · 86 yrs
AwTropical savannaWarmest monthMayColdest monthDecemberWettest monthNovemberDriest monthFebruary

Mean daily temperature

28.2°C

Average daily high

33.8°C

Average daily low

24.1°C

Annual rainfall

871mm

Sunshine / day

10.5h

Mean relative humidity

68%

Average peak wind

15.4km/h

Seasonal range

5.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

317 d/yr

Rainy days (≥ 1 mm)

119 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.9 °C

Average feels-like low

27.7 °C

Average peak gust

37.2 km/h

Tropical nights (≥ 20 °C)

353 d/yr

Solar radiation

20.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.4 °C

since 1940

+0.3 °C per decade · r² = 0.82 · p = < 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

42.8 °C

5 May 2024

Coldest day

15.6 °C

26 December 1941

Wettest day

204 mm

18 December 2023

Windiest day

32.0 km/h

13 November 1992

Strongest gust

78.1 km/h

9 August 1964

Hottest feels-like

47.9 °C

5 May 2024

Coldest feels-like

15.5 °C

1 January 1951

Sunniest day

12.2 h

3 June 1945

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202540.4 °C25 August 202518.7 °C21 December 202528.6 °C1,313 mm3200
202442.8 °C5 May 202421.2 °C17 January 202429.3 °C1,210 mm3490
202341.1 °C16 May 202320.3 °C13 January 202329.5 °C1,573 mm3480
202241.1 °C3 May 202220.0 °C24 November 202229.1 °C1,113 mm3510
202141.2 °C3 April 202119.5 °C12 February 202129.0 °C1,441 mm3320
202040.9 °C24 May 202020.8 °C28 January 202029.5 °C825 mm3470
201941.5 °C30 May 201919.4 °C4 January 201929.6 °C906 mm3300
201841.7 °C2 May 201820.1 °C20 January 201828.9 °C976 mm3420
201741.5 °C17 April 201720.5 °C29 December 201729.7 °C971 mm3440
201642.2 °C24 April 201620.8 °C2 February 201629.8 °C481 mm3570
201540.7 °C1 September 201520.0 °C13 January 201529.0 °C1,325 mm3400
201441.5 °C31 May 201419.5 °C10 February 201429.1 °C1,181 mm3190
201341.9 °C6 April 201319.6 °C15 January 201329.2 °C773 mm3510
201241.5 °C19 April 201218.1 °C16 January 201229.5 °C821 mm3460
201140.6 °C25 May 201117.9 °C26 December 201129.1 °C918 mm3230
201041.4 °C15 May 201019.4 °C13 December 201029.2 °C1,099 mm3300
200942.0 °C3 May 200918.8 °C1 January 200929.2 °C987 mm3250
200840.0 °C7 May 200818.3 °C31 December 200828.8 °C1,367 mm3240
200741.0 °C2 June 200718.9 °C23 January 200728.9 °C994 mm3410
200641.1 °C30 April 200617.2 °C24 January 200628.7 °C1,164 mm3100
200541.7 °C18 May 200518.3 °C16 February 200529.0 °C1,277 mm3260
200442.2 °C18 April 200419.0 °C15 January 200428.6 °C1,017 mm3120
200340.8 °C11 June 200318.4 °C10 December 200328.7 °C751 mm3170
200239.6 °C26 September 200218.0 °C15 January 200228.5 °C899 mm3070
200140.4 °C11 May 200118.2 °C10 February 200128.4 °C761 mm3120
200040.3 °C30 April 200017.6 °C23 January 200028.4 °C990 mm3330
199940.8 °C2 May 199918.0 °C27 January 199928.3 °C769 mm3160
199841.5 °C20 April 199818.9 °C26 December 199829.0 °C754 mm3320
199740.4 °C30 May 199718.8 °C16 February 199728.7 °C929 mm3270
199641.1 °C28 March 199618.7 °C11 March 199628.5 °C781 mm3420
199538.8 °C1 June 199519.3 °C5 March 199528.6 °C607 mm3470
199440.5 °C23 March 199417.9 °C30 January 199428.1 °C985 mm2990
199341.5 °C2 May 199317.2 °C20 January 199328.4 °C786 mm2940
199240.8 °C3 May 199218.0 °C26 December 199228.3 °C790 mm3210
199141.6 °C2 May 199118.2 °C12 February 199128.6 °C716 mm3260
199041.2 °C25 April 199016.6 °C15 January 199028.7 °C825 mm3230
198940.9 °C14 May 198918.0 °C7 February 198928.3 °C662 mm3450
198841.1 °C24 March 198819.4 °C7 January 198828.7 °C727 mm3460
198741.1 °C7 April 198719.5 °C12 February 198728.9 °C767 mm3360
198641.0 °C11 May 198618.6 °C18 November 198628.8 °C710 mm3370
198541.3 °C25 April 198518.6 °C6 February 198528.6 °C649 mm3310
198440.6 °C16 May 198416.6 °C14 December 198427.7 °C1,079 mm2920
198341.3 °C9 May 198318.6 °C3 January 198329.1 °C609 mm3410
198240.7 °C4 April 198218.3 °C14 February 198228.6 °C498 mm3290
198141.1 °C18 April 198118.5 °C2 February 198128.4 °C652 mm3280
198040.4 °C17 May 198018.3 °C24 January 198028.6 °C598 mm3390
197941.1 °C30 April 197918.9 °C6 January 197928.4 °C1,042 mm2850
197840.4 °C19 April 197818.3 °C19 January 197828.1 °C1,000 mm3170
197741.5 °C14 April 197717.8 °C13 January 197728.1 °C997 mm3080
197640.3 °C3 May 197616.9 °C26 February 197628.2 °C709 mm3200
197540.0 °C19 April 197518.2 °C2 February 197527.7 °C808 mm3120
197441.0 °C20 April 197416.8 °C7 January 197428.1 °C391 mm3350
197340.9 °C29 April 197318.3 °C15 January 197328.3 °C856 mm3110
197239.5 °C13 June 197217.3 °C7 January 197228.2 °C792 mm3170
197140.0 °C6 April 197117.3 °C21 December 197127.9 °C791 mm3170
197040.3 °C7 May 197018.0 °C4 December 197028.3 °C593 mm3360
196939.6 °C2 April 196919.7 °C27 January 196928.2 °C910 mm3180
196839.8 °C21 May 196818.1 °C15 February 196827.5 °C955 mm2990
196739.7 °C6 April 196717.8 °C10 February 196727.6 °C1,129 mm2760
196640.5 °C24 May 196617.2 °C2 January 196627.6 °C1,104 mm2730
196538.5 °C23 March 196518.5 °C14 December 196527.3 °C1,007 mm2930
196440.1 °C13 May 196418.4 °C11 January 196427.5 °C845 mm3040
196340.5 °C10 May 196317.6 °C12 February 196327.6 °C859 mm2800
196239.7 °C5 May 196218.6 °C16 January 196227.7 °C1,008 mm3040
196140.2 °C13 May 196118.0 °C26 February 196127.6 °C779 mm2830
196038.0 °C10 October 196019.0 °C4 February 196027.4 °C987 mm2900
195939.6 °C22 April 195919.4 °C23 December 195927.9 °C637 mm2960
195839.2 °C8 April 195817.7 °C11 January 195828.0 °C690 mm2990
195740.1 °C9 May 195718.2 °C23 January 195727.7 °C855 mm2750
195641.0 °C25 April 195617.7 °C6 January 195627.1 °C746 mm2780
195539.6 °C16 April 195516.9 °C20 December 195527.1 °C888 mm2740
195439.6 °C18 April 195417.8 °C21 January 195427.1 °C980 mm2780
195340.2 °C14 May 195318.2 °C31 January 195327.7 °C592 mm3330
195239.9 °C14 May 195219.2 °C21 January 195227.9 °C460 mm3440
195139.8 °C15 May 195117.5 °C1 January 195127.4 °C900 mm3240
195039.3 °C11 April 195019.1 °C3 January 195027.8 °C386 mm3520
194940.9 °C25 April 194917.6 °C4 March 194927.3 °C471 mm3220
194840.2 °C22 May 194818.9 °C24 December 194827.7 °C1,173 mm2930
194739.4 °C15 May 194718.7 °C16 January 194727.7 °C715 mm3240
194640.2 °C6 May 194616.7 °C29 January 194627.2 °C905 mm2790
194540.3 °C4 May 194516.6 °C15 December 194527.1 °C945 mm2920
194439.0 °C28 April 194417.3 °C11 December 194427.2 °C978 mm2920
194338.4 °C30 April 194317.2 °C1 February 194326.4 °C770 mm2930
194236.7 °C28 March 194217.4 °C1 January 194226.5 °C682 mm3120
194140.6 °C29 April 194115.6 °C26 December 194126.8 °C675 mm2750
194038.6 °C3 April 194017.1 °C18 January 194026.5 °C867 mm2890

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

Average daily high
33.8 °C
0.0 °C
Hot days (≥ 30 °C)
320 d/yr
+3
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
1313 mm
+442 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan30.0 °C-0.9 °C78 mm+39 mm
Feb33.1 °C-0.2 °C25 mm-2 mm
Mar34.0 °C-1.6 °C99 mm+59 mm
Apr36.1 °C-0.8 °C164 mm+109 mm
May36.5 °C-0.3 °C45 mm-8 mm
Jun35.3 °C+0.7 °C59 mm+16 mm
Jul34.4 °C+0.2 °C111 mm+73 mm
Aug35.6 °C+0.9 °C11 mm-23 mm
Sep36.6 °C+1.3 °C38 mm-12 mm
Oct33.5 °C+0.2 °C301 mm+127 mm
Nov30.8 °C+0.4 °C327 mm+118 mm
Dec29.9 °C+0.2 °C56 mm-53 mm

The year's extremes

Hottest day
40.4 °C
25 Aug 2025
Coldest day
18.7 °C
21 Dec 2025
Wettest day
123.9 mm
4 Apr 2025
Windiest day
27.2 km/h
6 Jul 2025
Strongest gust
60.8 km/h
16 Jul 2025
Hottest feels-like
44.9 °C
9 May 2025
Coldest feels-like
20.4 °C
20 Dec 2025
Sunniest day
12.1 h
11 May 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 Tirunelveli?

Tirunelveli has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.2 °C and it receives 871 mm of precipitation per year.

What is the hottest day ever recorded in Tirunelveli?

The hottest day measured in Tirunelveli between 1940 and 2025 was 5 May 2024, reaching 42.8 °C.

What is the coldest day in Tirunelveli?

The coldest day measured in Tirunelveli between 1940 and 2025 was 26 December 1941, at 15.6 °C.

Does it snow in Tirunelveli?

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

Has the climate of Tirunelveli warmed?

Yes: Tirunelveli warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Tirunelveli?

The wettest day measured in Tirunelveli between 1940 and 2025 was 18 December 2023, with 204 mm of rain in 24 hours.

What was the windiest day in Tirunelveli?

The windiest day measured in Tirunelveli between 1940 and 2025 was 13 November 1992, with winds reaching 32.0 km/h.

What is the warmest month in Tirunelveli?

The warmest month in Tirunelveli is May (30.7 °C on average); the coldest is December (25.4 °C).

How much does it rain in Tirunelveli?

Tirunelveli receives on average 871 mm of precipitation per year, spread over about 119 rainy days.

Is it sunny in Tirunelveli?

Tirunelveli gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Are there tropical nights in Tirunelveli?

Yes: Tirunelveli has on average 353 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Tirunelveli?

In Tirunelveli, between 1940 and 2025, the highest apparent temperature reached 47.9 °C on 5 May 2024, and the lowest was 15.5 °C on 1 January 1951.

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