Belém climate

Name: Belém
Address: BR

Belém is warmest in October, with average highs of 32 °C, and coldest in March, when nights average 24 °C. April is the wettest month (402 mm) and September the driest (27 mm). Figures are 1991–2020 climate normals.

Across a full year Belém averages 2,052 mm of rain and 365 days above 25 °C.

Brazil · population 1,499,641 · 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 32 °C
Coldest month March 24 °C
Driest month September 27 mm
Wettest month April 402 mm
Least cloud August 36 % cloud
Hottest on record December 35 °C
Coldest on record August 22 °C
Warmest sea June 29 °C

What to expectBelém through the year

Belém changes little through the year. Average daily highs stay between 29 and 32 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 365 days a year reach 25 °C, 187 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in December.

Rain is strongly seasonal. April averages 402 mm against 27 mm in September — 15 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Belém is warmest in June at 29 °C and coldest in March at 28 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	29.2 °C	236 mm	81 %
February	28.6 °C	311 mm	86 %
March	28.6 °C	399 mm	88 %
April	28.7 °C	402 mm	88 %
May	29.2 °C	262 mm	75 %
June	29.5 °C	115 mm	53 %
July	29.9 °C	72 mm	44 %
August	31.0 °C	38 mm	36 %
September	31.7 °C	27 mm	38 %
October	32.1 °C	32 mm	46 %
November	31.8 °C	46 mm	59 %
December	30.8 °C	113 mm	68 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	29.2 °C	24.3 °C	26.1 °C	33.1 °C	22.7 °C	31	9
February	28.6 °C	24.0 °C	25.7 °C	32.7 °C	22.2 °C	28	4
March	28.6 °C	24.0 °C	25.7 °C	33.4 °C	22.6 °C	31	3
April	28.7 °C	24.1 °C	25.8 °C	31.9 °C	22.6 °C	30	4
May	29.2 °C	24.3 °C	26.2 °C	31.9 °C	22.6 °C	31	8
June	29.5 °C	24.2 °C	26.3 °C	31.9 °C	22.5 °C	30	8
July	29.9 °C	24.0 °C	26.4 °C	32.8 °C	22.2 °C	31	12
August	31.0 °C	24.3 °C	27.0 °C	34.2 °C	21.9 °C	31	26
September	31.7 °C	24.5 °C	27.4 °C	34.6 °C	22.9 °C	30	29
October	32.1 °C	24.7 °C	27.7 °C	34.6 °C	23.0 °C	31	31
November	31.8 °C	24.9 °C	27.8 °C	34.7 °C	22.9 °C	30	29
December	30.8 °C	24.8 °C	27.2 °C	35.0 °C	22.8 °C	31	23

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	236 mm	27	12 h/day	81 %	85 %	13 km/h	28.5 °C
February	311 mm	27	12 h/day	86 %	87 %	13 km/h	28.4 °C
March	399 mm	30	12 h/day	88 %	88 %	12 km/h	28.3 °C
April	402 mm	29	12 h/day	88 %	88 %	11 km/h	28.6 °C
May	262 mm	27	12 h/day	75 %	87 %	11 km/h	29.0 °C
June	115 mm	21	12 h/day	53 %	84 %	12 km/h	29.4 °C
July	72 mm	15	12 h/day	44 %	82 %	12 km/h	29.3 °C
August	38 mm	10	12 h/day	36 %	79 %	14 km/h	29.1 °C
September	27 mm	7	12 h/day	38 %	76 %	16 km/h	28.9 °C
October	32 mm	7	12 h/day	46 %	74 %	16 km/h	28.7 °C
November	46 mm	8	12 h/day	59 %	75 %	15 km/h	28.7 °C
December	113 mm	18	12 h/day	68 %	79 %	14 km/h	28.7 °C

How Belém 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
Belém	32 °C	24 °C	2,052 mm	365
Ananindeua · Brazil	33 °C	24 °C	2,521 mm	364
Abaetetuba · Brazil	33 °C	24 °C	1,980 mm	364
Castanhal · Brazil	33 °C	23 °C	2,237 mm	365

Where Belém ranks

Ranking	Position	Value
The warmest places in South America in November	11th of 50	32 °C
The warmest places in South America in December	31st of 50	31 °C
The warmest places in South America in October	33rd of 50	32 °C
The warmest places in South America in August	45th of 50	31 °C
The warmest places in South America in September	45th of 50	32 °C
The warmest places in South America in July	50th of 50	30 °C

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

QuestionsCommon questions about Belém’s climate

When is the best time to visit Belém?

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

How hot does Belém get?

In October, the warmest month, daily highs average 32 °C. About 187 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

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

Which month is wettest in Belém?

April, averaging 402 mm over 29 days with rain. The driest month is September with 27 mm. The year as a whole averages 2,052 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 Belém 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: -1.456°, -48.504° (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.