Blumenau climate

Name: Blumenau
Address: BR

Blumenau is warmest in February, with average highs of 28 °C, and coldest in July, when nights average 13 °C. January is the wettest month (235 mm) and April the driest (94 mm). Figures are 1991–2020 climate normals.

Across a full year Blumenau averages 1,744 mm of rain, 169 days above 25 °C and 0 days below freezing.

Brazil · population 361,261 · 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 February 28 °C
Coldest month July 13 °C
Driest month April 94 mm
Wettest month January 235 mm
Least cloud July 63 % cloud
Hottest on record October 38 °C
Coldest on record July -0.2 °C

What to expectBlumenau through the year

Blumenau has a clear annual cycle: average daily highs run from 20 °C in July to 28 °C in February, a swing of 8.4 °C in mean temperature across the year.

Counted across a normal year, 169 days a year reach 25 °C, 38 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in October.

Rain is strongly seasonal. January averages 235 mm against 94 mm in April — 2.5 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.4 °C	235 mm	76 %
February	28.4 °C	221 mm	75 %
March	27.3 °C	147 mm	71 %
April	25.5 °C	94 mm	66 %
May	22.5 °C	109 mm	63 %
June	20.9 °C	108 mm	65 %
July	20.4 °C	96 mm	63 %
August	21.5 °C	97 mm	66 %
September	22.4 °C	159 mm	76 %
October	24.1 °C	152 mm	82 %
November	25.5 °C	153 mm	77 %
December	27.6 °C	173 mm	76 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.4 °C	21.4 °C	24.3 °C	37.0 °C	13.7 °C	26	10
February	28.4 °C	21.6 °C	24.4 °C	36.9 °C	13.4 °C	25	8
March	27.3 °C	20.6 °C	23.4 °C	35.6 °C	11.2 °C	24	5
April	25.5 °C	18.4 °C	21.5 °C	33.1 °C	8.0 °C	17	1
May	22.5 °C	15.2 °C	18.5 °C	30.3 °C	4.0 °C	6	0
June	20.9 °C	13.4 °C	16.7 °C	29.9 °C	1.7 °C	4	0
July	20.4 °C	12.6 °C	16.0 °C	29.6 °C	-0.2 °C	4	0
August	21.5 °C	13.6 °C	16.9 °C	33.4 °C	1.2 °C	6	1
September	22.4 °C	15.2 °C	18.2 °C	34.6 °C	4.4 °C	7	1
October	24.1 °C	17.2 °C	20.1 °C	38.2 °C	7.9 °C	11	2
November	25.5 °C	18.4 °C	21.5 °C	34.5 °C	10.3 °C	16	3
December	27.6 °C	20.3 °C	23.5 °C	37.1 °C	12.2 °C	24	8

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	235 mm	22	14 h/day	76 %	85 %	12 km/h
February	221 mm	20	13 h/day	75 %	86 %	11 km/h
March	147 mm	19	12 h/day	71 %	86 %	11 km/h
April	94 mm	12	11 h/day	66 %	85 %	10 km/h
May	109 mm	11	11 h/day	63 %	85 %	9.9 km/h
June	108 mm	10	10 h/day	65 %	86 %	9.5 km/h
July	96 mm	10	11 h/day	63 %	86 %	9.8 km/h
August	97 mm	10	11 h/day	66 %	86 %	11 km/h
September	159 mm	13	12 h/day	76 %	85 %	12 km/h
October	152 mm	17	13 h/day	82 %	85 %	12 km/h
November	153 mm	18	13 h/day	77 %	84 %	13 km/h
December	173 mm	19	14 h/day	76 %	83 %	13 km/h

How Blumenau 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
Blumenau	28 °C	13 °C	1,744 mm	169
Itajaí · Brazil	27 °C	14 °C	1,664 mm	131
Jaraguá do Sul · Brazil	28 °C	13 °C	1,767 mm	172
Joinville · Brazil	28 °C	13 °C	1,897 mm	168
São José · Brazil	28 °C	13 °C	1,666 mm	151
Palhoça · Brazil	28 °C	13 °C	1,730 mm	154
Florianópolis · Brazil	28 °C	14 °C	1,658 mm	138

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

QuestionsCommon questions about Blumenau’s climate

When is the best time to visit Blumenau?

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, February is the warmest month and April the driest. The month-by-month table above has the full picture.

How hot does Blumenau get?

In February, the warmest month, daily highs average 28 °C. About 38 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 13 °C in July, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Blumenau?

January, averaging 235 mm over 22 days with rain. The driest month is April with 94 mm. The year as a whole averages 1,744 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 Blumenau 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: -26.919°, -49.066° (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.