Belém weather in December
In December, Belém has an average high of 31 °C88 °F and an average low of 24 °C76 °F, with about 188 mm7.4 in of precipitation. It is the 4th warmest month of the year and ranks 6th for precipitation.
How December compares with other months
Compared with November, December is 1.2 °C2.1 °F cooler on average and wetter by 94 mm3.7 in. Compared with January, December is 1.4 °C2.4 °F warmer on average and drier by 123 mm4.8 in. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 79% and the average cloud amount 72%.
Is December a good time to visit Belém?
December is not among the most comfortable months by our comfort score: it is hot (average high 31 °C88 °F), it is fairly wet (188 mm7.4 in) and it is humid (79%). The most comfortable months in Belém are August and September.
What to wear in December
For Belém in December, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Belém | 3188 | 2476 | 1887.4 |
| Ananindeua | 3290 | 2374 | 1676.6 |
| Castanhal | 3289 | 2374 | 1676.6 |
| Cametá | 3188 | 2475 | 2027.9 |
| Bragança | 3188 | 2576 | 773.0 |
| Paragominas | 3391 | 2374 | 1244.9 |
| Breves | 3289 | 2374 | 1817.1 |
| Tucuruí | 3187 | 2476 | 1817.1 |
| Macapá | 3289 | 2474 | 1395.5 |
Other months in Belém
- January29 °C83 °F / 24 °C75 °F
- February28 °C82 °F / 24 °C75 °F
- March28 °C82 °F / 24 °C75 °F
- April28 °C82 °F / 24 °C76 °F
- May28 °C83 °F / 24 °C76 °F
- June29 °C83 °F / 24 °C75 °F
- July29 °C84 °F / 24 °C75 °F
- August31 °C87 °F / 24 °C75 °F
- September33 °C91 °F / 24 °C75 °F
- October33 °C92 °F / 24 °C76 °F
- November33 °C91 °F / 25 °C76 °F
- December31 °C88 °F / 24 °C76 °F
Frequently asked questions
How warm is Belém in December?
In December the average high in Belém is 31 °C (88 °F) and the average low is 24 °C (76 °F).
Does it rain a lot in Belém in December?
On average about 188 mm (7.4 in) of precipitation falls in December; it ranks 6th of the 12 months.
Is December the warmest month in Belém?
No. The warmest month in Belém is October, with an average high of 33 °C (92 °F). The coldest month is August, with an average low of 24 °C (75 °F).
How long is the day in Belém in December?
In the middle of December the day in Belém lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Belém in December?
The average relative humidity in December is about 79%. Combined with warm days, it can feel muggy.
How cloudy is Belém in December?
On average about 72% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.