Manaus climate

Name: Manaus
Address: BR

Manaus is warmest in October, with average highs of 31 °C, and coldest in July, when nights average 24 °C. March is the wettest month (362 mm) and August the driest (96 mm). Figures are 1991–2020 climate normals.

Across a full year Manaus averages 2,694 mm of rain and 364 days above 25 °C.

Brazil · population 2,219,580 · 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 24 °C
Driest month August 96 mm
Wettest month March 362 mm
Least cloud August 53 % cloud
Hottest on record October 39 °C
Coldest on record June 21 °C

What to expectManaus through the year

Manaus changes little through the year. Average daily highs stay between 30 and 31 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 364 days a year reach 25 °C, 147 of them reach 30 °C. The warmest reading in the 1991–2020 record is 39 °C, in October.

Rain is strongly seasonal. March averages 362 mm against 96 mm in August — 3.8 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	29.1 °C	296 mm	88 %
February	29.0 °C	291 mm	89 %
March	29.1 °C	362 mm	90 %
April	28.9 °C	350 mm	90 %
May	28.9 °C	303 mm	84 %
June	29.1 °C	162 mm	66 %
July	29.5 °C	104 mm	55 %
August	30.7 °C	96 mm	53 %
September	31.1 °C	116 mm	64 %
October	31.1 °C	148 mm	74 %
November	30.5 °C	188 mm	83 %
December	29.5 °C	278 mm	85 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	29.1 °C	24.0 °C	26.1 °C	36.1 °C	22.3 °C	31	8
February	29.0 °C	24.0 °C	26.0 °C	33.2 °C	22.3 °C	28	7
March	29.1 °C	24.1 °C	26.0 °C	32.6 °C	22.2 °C	31	9
April	28.9 °C	24.0 °C	26.0 °C	32.9 °C	22.2 °C	30	7
May	28.9 °C	23.9 °C	25.9 °C	31.9 °C	22.5 °C	31	6
June	29.1 °C	23.7 °C	26.0 °C	31.5 °C	21.3 °C	30	7
July	29.5 °C	23.6 °C	26.2 °C	33.9 °C	21.4 °C	31	11
August	30.7 °C	24.1 °C	27.0 °C	35.9 °C	21.4 °C	31	20
September	31.1 °C	24.5 °C	27.4 °C	38.4 °C	22.8 °C	30	21
October	31.1 °C	24.9 °C	27.6 °C	38.8 °C	22.4 °C	31	23
November	30.5 °C	24.8 °C	27.2 °C	36.0 °C	23.2 °C	30	19
December	29.5 °C	24.3 °C	26.5 °C	35.8 °C	22.8 °C	31	10

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	296 mm	28	12 h/day	88 %	87 %	10 km/h
February	291 mm	25	12 h/day	89 %	88 %	11 km/h
March	362 mm	29	12 h/day	90 %	88 %	10 km/h
April	350 mm	28	12 h/day	90 %	89 %	9.4 km/h
May	303 mm	28	12 h/day	84 %	89 %	9.1 km/h
June	162 mm	23	12 h/day	66 %	87 %	9.7 km/h
July	104 mm	19	12 h/day	55 %	85 %	9.3 km/h
August	96 mm	17	12 h/day	53 %	82 %	9.6 km/h
September	116 mm	19	12 h/day	64 %	82 %	9.6 km/h
October	148 mm	21	12 h/day	74 %	82 %	9.6 km/h
November	188 mm	23	12 h/day	83 %	85 %	9.3 km/h
December	278 mm	28	12 h/day	85 %	87 %	9.4 km/h

Where Manaus ranks

Ranking	Position	Value
The warmest places in South America in November	40th of 50	30 °C
The warmest places in South America in August	49th of 50	31 °C
The warmest places in South America in October	50th of 50	31 °C

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

QuestionsCommon questions about Manaus’s climate

When is the best time to visit Manaus?

That depends on what you want, so the honest answer is a comparison rather than a single month. April, May, June 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 Manaus get?

In October, the warmest month, daily highs average 31 °C. About 147 days a year pass 30 °C. The highest value in the 1991–2020 record is 39 °C.

How cold does it get in winter?

Nights average 24 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Manaus?

March, averaging 362 mm over 29 days with rain. The driest month is August with 96 mm. The year as a whole averages 2,694 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 Manaus 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: -3.102°, -60.025° (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.