Climate averages 1991–2020
Macapá weather
in December.
A hot, wet month: the joint 4th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Macapá: daytime highs average 30.1°C and nights cool to about 24.3°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 128 mm of rain on roughly 23 days, which makes December a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average December day.
The nearest other city in this atlas is Santana (15 km away). In December its highs average 30.4°C, about as warm as Macapá, with 105 mm of rain.
Among the 448 cities listed in Brazil, Macapá ranks joint 87th of 448 for the warmest December highs and 116th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Macapá is 1.6°C warmer than that mean.
From December to January, average highs fall by 1.6°C to 28.5°C, and monthly rainfall rises from 128 mm to 274 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Macapá climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C23.5°C | 23.5°C | 274 | 29.2 | 12.112 h |
| February | 28.0°C23.3°C | 23.3°C | 325 | 27.0 | 12.112 h |
| March | 28.1°C23.4°C | 23.4°C | 387 | 29.2 | 12.112 h |
| April | 28.1°C23.4°C | 23.4°C | 384 | 29.2 | 12.112 h |
| May | 28.4°C23.6°C | 23.6°C | 357 | 29.6 | 12.112 h |
| June | 28.7°C23.7°C | 23.7°C | 205 | 27.3 | 12.112 h |
| July | 29.0°C23.7°C | 23.7°C | 155 | 25.8 | 12.112 h |
| August | 30.1°C24.4°C | 24.4°C | 73 | 17.9 | 12.112 h |
| September | 31.2°C24.8°C | 24.8°C | 26 | 8.7 | 12.112 h |
| October | 31.8°C25.0°C | 25.0°C | 17 | 4.5 | 12.112 h |
| November | 31.6°C25.0°C | 25.0°C | 35 | 8.5 | 12.112 h |
| December, selected | 30.1°C24.3°C | 24.3°C | 128 | 22.8 | 12.112 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Santana in DecemberBrazil · 15 kmHigh 30.4°C · Low 24.3°C · 105 mm rain
- Breves in DecemberBrazil · 202 kmHigh 31.6°C · Low 24.4°C · 125 mm rain
- Cametá in DecemberBrazil · 308 kmHigh 31.4°C · Low 24.6°C · 151 mm rain
- Abaetetuba in DecemberBrazil · 312 kmHigh 31.1°C · Low 24.8°C · 112 mm rain
- Barcarena in DecemberBrazil · 321 kmHigh 30.6°C · Low 25.0°C · 103 mm rain
- Belém in DecemberBrazil · 330 kmHigh 30.7°C · Low 24.9°C · 108 mm rain
- Moju in DecemberBrazil · 333 kmHigh 31.9°C · Low 24.1°C · 140 mm rain
- Ananindeua in DecemberBrazil · 338 kmHigh 31.1°C · Low 24.5°C · 143 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Macapá) is explained once on the Macapá year overview and on the Sources, method and limits page.