Thoothukudi climate

Name: Thoothukudi
Address: IN

Thoothukudi is warmest in May, with average highs of 34 °C, and coldest in January, when nights average 23 °C. November is the wettest month (274 mm) and July the driest (17 mm). Figures are 1991–2020 climate normals.

Across a full year Thoothukudi averages 902 mm of rain and 365 days above 25 °C.

India · population 410,760 · 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 34 °C
Coldest month January 23 °C
Driest month July 17 mm
Wettest month November 274 mm
Least cloud March 40 % cloud
Hottest on record May 40 °C
Coldest on record December 20 °C
Warmest sea April 30 °C

What to expectThoothukudi through the year

Thoothukudi has a clear annual cycle: average daily highs run from 29 °C in January to 34 °C in May, a swing of 4.7 °C in mean temperature across the year.

Counted across a normal year, 365 days a year reach 25 °C, 242 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in May.

Rain is strongly seasonal. November averages 274 mm against 17 mm in July — 16 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Thoothukudi is warmest in April at 30 °C and coldest in January at 27 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.7 °C	36 mm	51 %
February	29.7 °C	30 mm	42 %
March	31.2 °C	44 mm	40 %
April	32.4 °C	55 mm	52 %
May	33.7 °C	42 mm	64 %
June	33.4 °C	22 mm	80 %
July	33.0 °C	17 mm	84 %
August	32.7 °C	22 mm	80 %
September	32.5 °C	36 mm	73 %
October	30.8 °C	191 mm	77 %
November	28.7 °C	274 mm	75 %
December	28.2 °C	133 mm	65 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.7 °C	22.8 °C	25.6 °C	31.1 °C	19.8 °C	31	1
February	29.7 °C	23.5 °C	26.5 °C	32.3 °C	19.9 °C	28	11
March	31.2 °C	24.7 °C	28.0 °C	34.4 °C	20.5 °C	31	26
April	32.4 °C	26.5 °C	29.5 °C	37.4 °C	23.4 °C	30	28
May	33.7 °C	27.3 °C	30.3 °C	40.0 °C	24.9 °C	31	30
June	33.4 °C	26.7 °C	29.6 °C	39.0 °C	24.9 °C	30	29
July	33.0 °C	26.3 °C	29.2 °C	38.1 °C	24.1 °C	31	30
August	32.7 °C	26.1 °C	29.0 °C	37.5 °C	23.9 °C	31	30
September	32.5 °C	26.0 °C	28.9 °C	37.6 °C	23.6 °C	30	29
October	30.8 °C	25.2 °C	27.7 °C	37.5 °C	22.5 °C	31	20
November	28.7 °C	24.2 °C	26.3 °C	32.2 °C	21.1 °C	30	4
December	28.2 °C	23.3 °C	25.7 °C	31.6 °C	19.7 °C	31	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	36 mm	6	12 h/day	51 %	74 %	21 km/h	27.1 °C
February	30 mm	6	12 h/day	42 %	74 %	21 km/h	27.6 °C
March	44 mm	7	12 h/day	40 %	74 %	20 km/h	29.0 °C
April	55 mm	9	12 h/day	52 %	74 %	19 km/h	30.3 °C
May	42 mm	6	13 h/day	64 %	69 %	21 km/h	29.9 °C
June	22 mm	4	13 h/day	80 %	67 %	23 km/h	28.6 °C
July	17 mm	4	13 h/day	84 %	66 %	23 km/h	27.9 °C
August	22 mm	5	12 h/day	80 %	67 %	22 km/h	27.8 °C
September	36 mm	7	12 h/day	73 %	68 %	20 km/h	28.0 °C
October	191 mm	17	12 h/day	77 %	76 %	17 km/h	28.4 °C
November	274 mm	21	12 h/day	75 %	82 %	16 km/h	28.4 °C
December	133 mm	13	12 h/day	65 %	77 %	20 km/h	27.6 °C

How Thoothukudi 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
Thoothukudi	34 °C	23 °C	902 mm	365
Tirunelveli · India	36 °C	20 °C	962 mm	363
Sivakasi · India	37 °C	20 °C	879 mm	363
Nāgercoil · India	33 °C	22 °C	976 mm	364

Where Thoothukudi ranks

Ranking	Position	Value
Warmest sea temperatures in Asia in April	3rd of 50	30 °C
Warmest sea temperatures in the world in April	3rd of 50	30 °C
Best beach destinations in Asia in June	38th of 50	79/100
Best beach destinations in Asia in July	41st of 50	83/100
Best beach destinations in Asia year-round	41st of 50	78/100

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

QuestionsCommon questions about Thoothukudi’s climate

When is the best time to visit Thoothukudi?

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 Thoothukudi get?

In May, the warmest month, daily highs average 34 °C. About 242 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average 23 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Thoothukudi?

November, averaging 274 mm over 21 days with rain. The driest month is July with 17 mm. The year as a whole averages 902 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 Thoothukudi 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: 8.767°, 78.134° (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.