Novo Hamburgo climate

Name: Novo Hamburgo
Address: BR

Novo Hamburgo is warmest in January, with average highs of 29 °C, and coldest in July, when nights average 9.4 °C. October is the wettest month (195 mm) and April the driest (119 mm). Figures are 1991–2020 climate normals.

Across a full year Novo Hamburgo averages 1,732 mm of rain, 165 days above 25 °C and 1 days below freezing.

Brazil · population 253,841 · 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 29 °C
Coldest month July 9.4 °C
Driest month April 119 mm
Wettest month October 195 mm
Least cloud March 53 % cloud
Hottest on record December 38 °C
Coldest on record July -2.2 °C

What to expectNovo Hamburgo through the year

Novo Hamburgo has a clear annual cycle: average daily highs run from 19 °C in July to 29 °C in January, a swing of 10 °C in mean temperature across the year.

Counted across a normal year, 165 days a year reach 25 °C, 42 of them reach 30 °C, 1 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in December.

Rain is spread fairly evenly through the year, from 119 mm in April to 195 mm in October. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.7 °C	166 mm	56 %
February	28.3 °C	145 mm	56 %
March	27.0 °C	126 mm	53 %
April	24.5 °C	119 mm	55 %
May	20.9 °C	122 mm	59 %
June	19.2 °C	126 mm	61 %
July	18.7 °C	157 mm	58 %
August	20.8 °C	132 mm	55 %
September	21.7 °C	160 mm	61 %
October	23.8 °C	195 mm	65 %
November	25.8 °C	140 mm	55 %
December	28.1 °C	145 mm	55 %

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	19.6 °C	23.8 °C	37.6 °C	11.6 °C	28	10
February	28.3 °C	19.5 °C	23.6 °C	37.3 °C	10.2 °C	24	8
March	27.0 °C	18.2 °C	22.3 °C	37.5 °C	7.4 °C	22	5
April	24.5 °C	15.7 °C	19.7 °C	33.1 °C	4.1 °C	12	2
May	20.9 °C	12.4 °C	16.2 °C	30.1 °C	1.4 °C	4	0
June	19.2 °C	10.4 °C	14.3 °C	29.2 °C	-1.9 °C	4	0
July	18.7 °C	9.4 °C	13.5 °C	29.2 °C	-2.2 °C	4	0
August	20.8 °C	10.5 °C	15.0 °C	33.4 °C	-0.8 °C	7	1
September	21.7 °C	12.1 °C	16.5 °C	35.8 °C	0.9 °C	7	2
October	23.8 °C	14.5 °C	18.9 °C	36.3 °C	5.0 °C	11	2
November	25.8 °C	15.9 °C	20.6 °C	38.0 °C	7.3 °C	17	4
December	28.1 °C	18.3 °C	22.9 °C	38.3 °C	9.0 °C	25	9

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	166 mm	15	14 h/day	56 %	80 %	15 km/h
February	145 mm	14	13 h/day	56 %	81 %	14 km/h
March	126 mm	13	12 h/day	53 %	82 %	14 km/h
April	119 mm	10	11 h/day	55 %	82 %	13 km/h
May	122 mm	10	11 h/day	59 %	84 %	13 km/h
June	126 mm	10	10 h/day	61 %	85 %	13 km/h
July	157 mm	11	10 h/day	58 %	84 %	14 km/h
August	132 mm	10	11 h/day	55 %	82 %	14 km/h
September	160 mm	12	12 h/day	61 %	82 %	15 km/h
October	195 mm	14	13 h/day	65 %	81 %	16 km/h
November	140 mm	12	14 h/day	55 %	79 %	16 km/h
December	145 mm	13	14 h/day	55 %	78 %	16 km/h

How Novo Hamburgo 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
Novo Hamburgo	29 °C	9.4 °C	1,732 mm	165
Porto Alegre · Brazil	29 °C	10 °C	1,542 mm	170
Viamão · Brazil	28 °C	10 °C	1,553 mm	150
Caxias do Sul · Brazil	25 °C	7.3 °C	2,002 mm	78

Planning a trip? See the best time to visit Novo Hamburgo.

QuestionsCommon questions about Novo Hamburgo’s climate

When is the best time to visit Novo Hamburgo?

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 April the driest. The month-by-month table above has the full picture.

How hot does Novo Hamburgo get?

In January, the warmest month, daily highs average 29 °C. About 42 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 9.4 °C in July, the coldest month. A normal year has 1 nights below freezing.

Which month is wettest in Novo Hamburgo?

October, averaging 195 mm over 14 days with rain. The driest month is April with 119 mm. The year as a whole averages 1,732 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 Novo Hamburgo 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: -29.678°, -51.131° (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.