São José do Rio Preto climate

Name: São José do Rio Preto
Address: BR

São José do Rio Preto is warmest in October, with average highs of 31 °C, and coldest in July, when nights average 16 °C. January is the wettest month (267 mm) and July the driest (14 mm). Figures are 1991–2020 climate normals.

Across a full year São José do Rio Preto averages 1,396 mm of rain and 324 days above 25 °C.

Brazil · population 480,393 · 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 31 °C
Coldest month July 16 °C
Driest month July 14 mm
Wettest month January 267 mm
Least cloud August 29 % cloud
Hottest on record September 40 °C
Coldest on record June 2.7 °C

What to expectSão José do Rio Preto through the year

São José do Rio Preto has a clear annual cycle: average daily highs run from 27 °C in July to 31 °C in October, a swing of 5.0 °C in mean temperature across the year.

Counted across a normal year, 324 days a year reach 25 °C, 104 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in September.

Rain is strongly seasonal. January averages 267 mm against 14 mm in July — 18 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.9 °C	267 mm	78 %
February	29.1 °C	194 mm	72 %
March	28.7 °C	183 mm	62 %
April	28.2 °C	70 mm	46 %
May	26.2 °C	46 mm	43 %
June	25.9 °C	26 mm	36 %
July	26.5 °C	14 mm	32 %
August	28.9 °C	17 mm	29 %
September	30.7 °C	59 mm	40 %
October	30.7 °C	115 mm	59 %
November	29.4 °C	170 mm	66 %
December	29.0 °C	234 mm	74 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.9 °C	21.7 °C	24.9 °C	35.4 °C	17.3 °C	30	9
February	29.1 °C	21.6 °C	24.9 °C	35.9 °C	17.6 °C	27	9
March	28.7 °C	21.0 °C	24.4 °C	33.8 °C	15.9 °C	29	7
April	28.2 °C	19.6 °C	23.5 °C	33.0 °C	9.0 °C	28	6
May	26.2 °C	16.8 °C	21.1 °C	31.8 °C	8.3 °C	21	1
June	25.9 °C	15.9 °C	20.4 °C	30.7 °C	2.7 °C	21	0
July	26.5 °C	15.8 °C	20.6 °C	32.0 °C	4.7 °C	24	2
August	28.9 °C	17.2 °C	22.6 °C	35.8 °C	6.3 °C	27	12
September	30.7 °C	19.4 °C	24.6 °C	40.3 °C	7.5 °C	27	18
October	30.7 °C	20.8 °C	25.4 °C	40.3 °C	12.8 °C	30	17
November	29.4 °C	20.8 °C	24.7 °C	37.7 °C	14.0 °C	29	12
December	29.0 °C	21.5 °C	24.9 °C	36.1 °C	14.7 °C	30	10

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	267 mm	23	13 h/day	78 %	81 %	13 km/h
February	194 mm	20	13 h/day	72 %	80 %	12 km/h
March	183 mm	20	12 h/day	62 %	80 %	12 km/h
April	70 mm	9	12 h/day	46 %	74 %	12 km/h
May	46 mm	5	11 h/day	43 %	70 %	13 km/h
June	26 mm	3	11 h/day	36 %	67 %	14 km/h
July	14 mm	2	11 h/day	32 %	59 %	15 km/h
August	17 mm	3	11 h/day	29 %	51 %	16 km/h
September	59 mm	7	12 h/day	40 %	55 %	17 km/h
October	115 mm	13	13 h/day	59 %	64 %	16 km/h
November	170 mm	17	13 h/day	66 %	73 %	15 km/h
December	234 mm	23	13 h/day	74 %	79 %	14 km/h

How São José do Rio Preto 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
São José do Rio Preto	31 °C	16 °C	1,396 mm	324
Araçatuba · Brazil	31 °C	16 °C	1,272 mm	325
Araraquara · Brazil	29 °C	14 °C	1,391 mm	277
Marília · Brazil	29 °C	14 °C	1,277 mm	266

Planning a trip? See the best time to visit São José do Rio Preto.

QuestionsCommon questions about São José do Rio Preto’s climate

When is the best time to visit São José do Rio Preto?

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

How hot does São José do Rio Preto get?

In October, the warmest month, daily highs average 31 °C. About 104 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 16 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in São José do Rio Preto?

January, averaging 267 mm over 23 days with rain. The driest month is July with 14 mm. The year as a whole averages 1,396 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 São José do Rio Preto 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: -20.820°, -49.379° (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.