São José climate

Name: São José
Address: BR

São José is warmest in January, with average highs of 28 °C, and coldest in July, when nights average 11 °C. January is the wettest month (318 mm) and July the driest (90 mm). Figures are 1991–2020 climate normals.

Across a full year São José averages 2,043 mm of rain and 167 days above 25 °C.

Brazil · population 200,000 · 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 January 28 °C
Coldest month July 11 °C
Driest month July 90 mm
Wettest month January 318 mm
Least cloud August 52 % cloud
Hottest on record February 38 °C
Coldest on record July 0 °C

What to expectSão José through the year

São José has a clear annual cycle: average daily highs run from 20 °C in July to 28 °C in January, a swing of 8.6 °C in mean temperature across the year.

Counted across a normal year, 167 days a year reach 25 °C, 41 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in February.

Rain is strongly seasonal. January averages 318 mm against 90 mm in July — 3.5 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.0 °C	318 mm	69 %
February	27.8 °C	280 mm	68 %
March	26.9 °C	198 mm	64 %
April	25.1 °C	122 mm	57 %
May	21.9 °C	131 mm	57 %
June	20.6 °C	96 mm	57 %
July	20.1 °C	90 mm	53 %
August	21.8 °C	96 mm	52 %
September	22.4 °C	138 mm	65 %
October	24.0 °C	166 mm	73 %
November	25.5 °C	188 mm	66 %
December	27.6 °C	220 mm	67 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.0 °C	20.0 °C	23.6 °C	37.4 °C	12.5 °C	25	8
February	27.8 °C	20.0 °C	23.5 °C	38.2 °C	12.6 °C	22	7
March	26.9 °C	19.0 °C	22.5 °C	35.2 °C	9.8 °C	21	5
April	25.1 °C	16.6 °C	20.5 °C	33.3 °C	5.8 °C	15	2
May	21.9 °C	13.4 °C	17.3 °C	31.5 °C	3.3 °C	6	0
June	20.6 °C	11.7 °C	15.6 °C	30.9 °C	0.7 °C	5	0
July	20.1 °C	10.9 °C	15.0 °C	29.4 °C	0.0 °C	5	0
August	21.8 °C	12.0 °C	16.3 °C	32.8 °C	0.2 °C	8	1
September	22.4 °C	13.7 °C	17.5 °C	36.0 °C	1.6 °C	8	2
October	24.0 °C	15.8 °C	19.4 °C	37.4 °C	6.2 °C	12	3
November	25.5 °C	17.0 °C	20.9 °C	37.0 °C	8.3 °C	17	4
December	27.6 °C	19.0 °C	22.9 °C	38.0 °C	10.4 °C	23	8

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	318 mm	23	14 h/day	69 %	83 %	10 km/h
February	280 mm	21	13 h/day	68 %	84 %	9.7 km/h
March	198 mm	21	12 h/day	64 %	84 %	9.7 km/h
April	122 mm	13	11 h/day	57 %	83 %	9.8 km/h
May	131 mm	11	11 h/day	57 %	84 %	9.9 km/h
June	96 mm	10	10 h/day	57 %	84 %	9.8 km/h
July	90 mm	10	11 h/day	53 %	83 %	10 km/h
August	96 mm	10	11 h/day	52 %	81 %	11 km/h
September	138 mm	13	12 h/day	65 %	81 %	12 km/h
October	166 mm	18	13 h/day	73 %	82 %	12 km/h
November	188 mm	17	14 h/day	66 %	80 %	12 km/h
December	220 mm	19	14 h/day	67 %	80 %	11 km/h

How São José 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	28 °C	11 °C	2,043 mm	167
Criciúma · Brazil	27 °C	11 °C	1,489 mm	149
Palhoça · Brazil	28 °C	13 °C	1,730 mm	154
São José · Brazil	28 °C	13 °C	1,666 mm	151
Florianópolis · Brazil	28 °C	14 °C	1,658 mm	138
Lages · Brazil	25 °C	7.4 °C	1,747 mm	71
Blumenau · Brazil	28 °C	13 °C	1,744 mm	169

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

QuestionsCommon questions about São José’s climate

When is the best time to visit São José?

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

How hot does São José get?

In January, the warmest month, daily highs average 28 °C. About 41 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 11 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in São José?

January, averaging 318 mm over 23 days with rain. The driest month is July with 90 mm. The year as a whole averages 2,043 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 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: -28.213°, -49.164° (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.