Piracicaba climate

Name: Piracicaba
Address: BR

Piracicaba is warmest in October, with average highs of 29 °C, and coldest in July, when nights average 13 °C. January is the wettest month (254 mm) and August the driest (30 mm). Figures are 1991–2020 climate normals.

Across a full year Piracicaba averages 1,300 mm of rain and 276 days above 25 °C.

Brazil · population 440,835 · 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 October 29 °C
Coldest month July 13 °C
Driest month August 30 mm
Wettest month January 254 mm
Least cloud August 34 % cloud
Hottest on record October 40 °C
Coldest on record July 2.3 °C

What to expectPiracicaba through the year

Piracicaba has a clear annual cycle: average daily highs run from 24 °C in July to 29 °C in October, a swing of 6.1 °C in mean temperature across the year.

Counted across a normal year, 276 days a year reach 25 °C, 72 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in October.

Rain is strongly seasonal. January averages 254 mm against 30 mm in August — 8.6 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.7 °C	254 mm	74 %
February	28.9 °C	188 mm	68 %
March	28.1 °C	147 mm	59 %
April	27.2 °C	56 mm	47 %
May	24.7 °C	51 mm	47 %
June	24.1 °C	39 mm	42 %
July	24.5 °C	31 mm	38 %
August	26.5 °C	30 mm	34 %
September	28.4 °C	60 mm	45 %
October	28.9 °C	103 mm	62 %
November	28.4 °C	149 mm	64 %
December	28.8 °C	194 mm	69 %

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	20.4 °C	24.1 °C	37.9 °C	14.2 °C	28	9
February	28.9 °C	20.4 °C	24.2 °C	37.6 °C	15.0 °C	27	9
March	28.1 °C	19.6 °C	23.4 °C	36.2 °C	13.6 °C	28	6
April	27.2 °C	17.8 °C	22.1 °C	34.1 °C	9.2 °C	25	3
May	24.7 °C	14.8 °C	19.3 °C	31.7 °C	6.5 °C	14	1
June	24.1 °C	13.4 °C	18.2 °C	30.4 °C	3.4 °C	12	0
July	24.5 °C	13.0 °C	18.1 °C	31.9 °C	2.3 °C	15	0
August	26.5 °C	13.9 °C	19.6 °C	34.8 °C	4.8 °C	22	4
September	28.4 °C	16.4 °C	21.8 °C	38.8 °C	6.9 °C	24	11
October	28.9 °C	18.1 °C	23.0 °C	40.3 °C	9.8 °C	26	12
November	28.4 °C	18.7 °C	23.1 °C	37.1 °C	11.5 °C	26	8
December	28.8 °C	20.0 °C	23.9 °C	36.2 °C	13.8 °C	29	9

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	254 mm	23	13 h/day	74 %	79 %	13 km/h
February	188 mm	19	13 h/day	68 %	79 %	13 km/h
March	147 mm	17	12 h/day	59 %	80 %	13 km/h
April	56 mm	8	12 h/day	47 %	76 %	13 km/h
May	51 mm	6	11 h/day	47 %	75 %	13 km/h
June	39 mm	4	11 h/day	42 %	74 %	13 km/h
July	31 mm	4	11 h/day	38 %	69 %	13 km/h
August	30 mm	4	11 h/day	34 %	64 %	15 km/h
September	60 mm	8	12 h/day	45 %	64 %	17 km/h
October	103 mm	12	13 h/day	62 %	69 %	17 km/h
November	149 mm	15	13 h/day	64 %	73 %	16 km/h
December	194 mm	20	14 h/day	69 %	77 %	15 km/h

How Piracicaba 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
Piracicaba	29 °C	13 °C	1,300 mm	276
Santa Bárbara d'Oeste · Brazil	29 °C	13 °C	1,374 mm	267
Limeira · Brazil	29 °C	13 °C	1,515 mm	273
Sumaré · Brazil	29 °C	13 °C	1,422 mm	265
Campinas · Brazil	28 °C	13 °C	1,405 mm	239
Itu · Brazil	28 °C	13 °C	1,310 mm	229
Mogi Guaçu · Brazil	29 °C	12 °C	1,411 mm	275

Where Piracicaba ranks

Ranking	Position	Value
Places with the best weather in South America in June	28thof 50	94/100
Places with the best weather in South America in July	29thof 50	95/100
Places with the best weather in South America in May	33rdof 50	92/100

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

QuestionsCommon questions about Piracicaba’s climate

When is the best time to visit Piracicaba?

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

How hot does Piracicaba get?

In October, the warmest month, daily highs average 29 °C. About 72 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 13 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Piracicaba?

January, averaging 254 mm over 23 days with rain. The driest month is August with 30 mm. The year as a whole averages 1,300 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 Piracicaba 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
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.