Tirunelveli climate

Name: Tirunelveli
Address: IN

Tirunelveli is warmest in May, with average highs of 36 °C, and coldest in January, when nights average 20 °C. November is the wettest month (262 mm) and July the driest (29 mm). Figures are 1991–2020 climate normals.

Across a full year Tirunelveli averages 962 mm of rain and 363 days above 25 °C.

India · population 1,435,844 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month May 36 °C
Coldest month January 20 °C
Driest month July 29 mm
Wettest month November 262 mm
Least cloud March 40 % cloud
Hottest on record April 41 °C
Coldest on record January 15 °C

What to expectTirunelveli through the year

Tirunelveli has a clear annual cycle: average daily highs run from 30 °C in January to 36 °C in May, a swing of 5.6 °C in mean temperature across the year.

Counted across a normal year, 363 days a year reach 25 °C, 293 of them reach 30 °C. The warmest reading in the 1991–2020 record is 41 °C, in April.

Rain is strongly seasonal. November averages 262 mm against 29 mm in July — 9.2 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	30.1 °C	34 mm	53 %
February	32.7 °C	29 mm	43 %
March	35.3 °C	40 mm	40 %
April	36.3 °C	60 mm	54 %
May	36.3 °C	56 mm	65 %
June	34.2 °C	36 mm	81 %
July	33.8 °C	29 mm	85 %
August	34.3 °C	41 mm	81 %
September	34.9 °C	51 mm	74 %
October	32.6 °C	193 mm	78 %
November	29.5 °C	262 mm	77 %
December	28.7 °C	131 mm	68 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	30.1 °C	20.3 °C	24.8 °C	34.9 °C	14.9 °C	31	16
February	32.7 °C	21.0 °C	26.3 °C	38.4 °C	16.0 °C	28	26
March	35.3 °C	22.6 °C	28.4 °C	40.3 °C	16.9 °C	31	30
April	36.3 °C	24.8 °C	29.9 °C	41.3 °C	21.4 °C	30	30
May	36.3 °C	25.8 °C	30.2 °C	41.0 °C	21.8 °C	31	30
June	34.2 °C	25.3 °C	28.9 °C	39.5 °C	22.1 °C	30	29
July	33.8 °C	24.9 °C	28.5 °C	38.2 °C	22.5 °C	31	30
August	34.3 °C	24.6 °C	28.6 °C	38.4 °C	21.3 °C	31	30
September	34.9 °C	24.4 °C	28.8 °C	39.1 °C	21.7 °C	30	29
October	32.6 °C	23.6 °C	27.4 °C	38.8 °C	19.0 °C	31	25
November	29.5 °C	22.3 °C	25.4 °C	36.2 °C	17.2 °C	29	12
December	28.7 °C	21.1 °C	24.6 °C	33.5 °C	16.0 °C	30	6

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	34 mm	6	12 h/day	53 %	72 %	16 km/h
February	29 mm	6	12 h/day	43 %	68 %	16 km/h
March	40 mm	7	12 h/day	40 %	65 %	16 km/h
April	60 mm	10	12 h/day	54 %	66 %	14 km/h
May	56 mm	8	13 h/day	65 %	65 %	16 km/h
June	36 mm	6	13 h/day	81 %	67 %	20 km/h
July	29 mm	6	13 h/day	85 %	65 %	21 km/h
August	41 mm	7	12 h/day	81 %	65 %	19 km/h
September	51 mm	8	12 h/day	74 %	65 %	16 km/h
October	193 mm	17	12 h/day	78 %	74 %	12 km/h
November	262 mm	21	12 h/day	77 %	82 %	11 km/h
December	131 mm	13	12 h/day	68 %	78 %	15 km/h

How Tirunelveli compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Tirunelveli	36 °C	20 °C	962 mm	363
Thoothukudi · India	34 °C	23 °C	902 mm	365
Nāgercoil · India	33 °C	22 °C	976 mm	364
Sivakasi · India	37 °C	20 °C	879 mm	363

Where Tirunelveli ranks

Ranking	Position	Value
The warmest places in Asia in February	34th of 50	33 °C
The warmest places in Asia year-round	37th of 50	33 °C

Planning a trip? See the best time to visit Tirunelveli.

QuestionsCommon questions about Tirunelveli’s climate

When is the best time to visit Tirunelveli?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, November, December sit closest to 20 °C on average, May is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Tirunelveli get?

In May, the warmest month, daily highs average 36 °C. About 293 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average 20 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Tirunelveli?

November, averaging 262 mm over 21 days with rain. The driest month is July with 29 mm. The year as a whole averages 962 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Tirunelveli rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 8.727°, 77.684° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.