Thrissur climate

Name: Thrissur
Address: IN

Thrissur is warmest in March, with average highs of 34 °C, and coldest in December, when nights average 23 °C. June is the wettest month (518 mm) and January the driest (7.6 mm). Figures are 1991–2020 climate normals.

Across a full year Thrissur averages 2,569 mm of rain and 364 days above 25 °C.

India · population 315,957 · 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 March 34 °C
Coldest month December 23 °C
Driest month January 8 mm
Wettest month June 518 mm
Least cloud February 32 % cloud
Hottest on record February 40 °C
Coldest on record December 19 °C
Warmest sea April 30 °C

What to expectThrissur through the year

Thrissur has a clear annual cycle: average daily highs run from 31 °C in December to 34 °C in March, a swing of 3.6 °C in mean temperature across the year.

Counted across a normal year, 364 days a year reach 25 °C, 192 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in February.

Rain is strongly seasonal. June averages 518 mm against 8 mm in January — 68 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Thrissur is warmest in April at 30 °C and coldest in August 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	33.2 °C	8 mm	34 %
February	34.2 °C	16 mm	32 %
March	34.3 °C	54 mm	40 %
April	32.4 °C	139 mm	64 %
May	30.7 °C	259 mm	81 %
June	28.3 °C	518 mm	93 %
July	27.7 °C	489 mm	95 %
August	27.8 °C	374 mm	92 %
September	28.5 °C	257 mm	84 %
October	29.1 °C	285 mm	82 %
November	30.0 °C	135 mm	69 %
December	31.3 °C	37 mm	48 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	33.2 °C	23.1 °C	27.4 °C	37.2 °C	19.6 °C	31	31
February	34.2 °C	23.8 °C	28.2 °C	40.1 °C	20.4 °C	28	28
March	34.3 °C	25.0 °C	28.8 °C	39.8 °C	21.3 °C	31	31
April	32.4 °C	25.4 °C	28.4 °C	38.6 °C	22.7 °C	30	29
May	30.7 °C	25.2 °C	27.6 °C	35.3 °C	22.9 °C	31	22
June	28.3 °C	24.2 °C	25.8 °C	32.9 °C	21.7 °C	30	3
July	27.7 °C	23.7 °C	25.2 °C	31.0 °C	21.9 °C	31	0
August	27.8 °C	23.6 °C	25.3 °C	31.3 °C	22.0 °C	30	0
September	28.5 °C	23.6 °C	25.7 °C	32.7 °C	22.0 °C	30	3
October	29.1 °C	23.5 °C	25.8 °C	32.8 °C	20.4 °C	31	7
November	30.0 °C	23.3 °C	26.2 °C	33.7 °C	19.3 °C	30	15
December	31.3 °C	23.0 °C	26.6 °C	36.0 °C	18.5 °C	31	25

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	8 mm	2	12 h/day	34 %	61 %	16 km/h	28.4 °C
February	16 mm	3	12 h/day	32 %	64 %	16 km/h	28.6 °C
March	54 mm	10	12 h/day	40 %	70 %	16 km/h	29.4 °C
April	139 mm	23	12 h/day	64 %	79 %	14 km/h	30.0 °C
May	259 mm	26	13 h/day	81 %	84 %	13 km/h	29.8 °C
June	518 mm	29	13 h/day	93 %	90 %	15 km/h	28.5 °C
July	489 mm	30	13 h/day	95 %	90 %	16 km/h	27.1 °C
August	374 mm	28	12 h/day	92 %	89 %	15 km/h	26.6 °C
September	257 mm	23	12 h/day	84 %	88 %	14 km/h	27.4 °C
October	285 mm	26	12 h/day	82 %	87 %	11 km/h	28.5 °C
November	135 mm	15	12 h/day	69 %	81 %	11 km/h	28.9 °C
December	37 mm	5	12 h/day	48 %	68 %	15 km/h	28.7 °C

Where Thrissur ranks

Ranking	Position	Value
The warmest places in Asia in January	1st of 50	33 °C
The warmest places in Asia in February	3rd of 50	34 °C
The warmest places in Asia in December	7th of 50	31 °C
Warmest sea temperatures in Asia in March	24th of 50	29 °C
Warmest sea temperatures in Asia in April	27th of 50	30 °C
Warmest sea temperatures in the world in April	27th of 50	30 °C

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

QuestionsCommon questions about Thrissur’s climate

When is the best time to visit Thrissur?

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

How hot does Thrissur get?

In March, the warmest month, daily highs average 34 °C. About 192 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 December, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Thrissur?

June, averaging 518 mm over 29 days with rain. The driest month is January with 8 mm. The year as a whole averages 2,569 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 Thrissur 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: 10.517°, 76.217° (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.