Belém weather in December

December in Belém: sweltering, rainy, with clean air — a good time to visit.

#7 of 12 months in Belém · #369 of 604 destinations to visit in December · comfort 65/100 (tier C)

Updated June 2026 · climate normals from ERA5 reanalysis

Belém climate normals — December

Daytime high31°C / 87°F🔥 sweltering
Nighttime low25°C / 78°F
Feels like (high)36°C / 97°F
Rainfall133 mm / 5.2 in🌧 rainy
Rainy days21 days
Humidity80%💦 very humid
Dew point23°C / 74°F
Sunshine10.1 h/day
Daylight12.2 h
Wind14 km/h / 9 mph
Air quality (US AQI)37🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

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Belém in December — FAQ

Is December a good time to visit Belém?
December in Belém: sweltering, rainy, with clean air — a good time to visit. It ranks #7 of 12 months for Belém on SeasonMap's comfort score (65/100).
What is the weather like in Belém in December?
In December, Belém averages a daily high of 30.6°C and a low of 25.3°C, with about 132.6 mm of rain over roughly 20.6 rainy days.
What is the air quality in Belém in December?
Belém has a mean US Air Quality Index of about 37 in December.

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