Climate averages 1991–2020
Açailândia weather
in December.
A hot, wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Açailândia: daytime highs average 30.0°C and nights cool to about 22.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 165 mm of rain on roughly 21 days, which makes December a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average December day.
The nearest other city in this atlas is Imperatriz (64 km away). In December its highs average 30.3°C, about as warm as Açailândia, with 144 mm of rain.
Among the 448 cities listed in Brazil, Açailândia ranks joint 93rd of 448 for the warmest December highs and joint 166th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Açailândia is 1.5°C warmer than that mean.
From December to January, average highs fall by 1.4°C to 28.5°C, and monthly rainfall rises from 165 mm to 255 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
Açailândia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C22.0°C | 22.0°C | 255 | 27.4 | 12.412 h |
| February | 28.3°C21.9°C | 21.9°C | 262 | 25.4 | 12.312 h |
| March | 28.2°C22.0°C | 22.0°C | 300 | 28.8 | 12.112 h |
| April | 28.4°C22.0°C | 22.0°C | 210 | 24.6 | 12.012 h |
| May | 29.1°C21.9°C | 21.9°C | 102 | 14.9 | 11.912 h |
| June | 30.6°C21.6°C | 21.6°C | 15 | 3.3 | 11.812 h |
| July | 31.9°C21.6°C | 21.6°C | 8.6 | 1.7 | 11.912 h |
| August | 33.2°C22.1°C | 22.1°C | 3.5 | 0.7 | 12.012 h |
| September | 33.6°C22.9°C | 22.9°C | 14 | 2.8 | 12.112 h |
| October | 33.0°C23.4°C | 23.4°C | 41 | 7.1 | 12.212 h |
| November | 31.5°C23.1°C | 23.1°C | 101 | 14.5 | 12.312 h |
| December, selected | 30.0°C22.6°C | 22.6°C | 165 | 21.4 | 12.412 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
- Imperatriz in DecemberBrazil · 64 kmHigh 30.3°C · Low 23.7°C · 144 mm rain
- Grajaú in DecemberBrazil · 180 kmHigh 30.7°C · Low 23.2°C · 135 mm rain
- Marabá in DecemberBrazil · 187 kmHigh 29.8°C · Low 23.4°C · 216 mm rain
- Paragominas in DecemberBrazil · 218 kmHigh 32.3°C · Low 23.7°C · 113 mm rain
- Barra do Corda in DecemberBrazil · 258 kmHigh 31.2°C · Low 23.5°C · 135 mm rain
- Araguaína in DecemberBrazil · 261 kmHigh 29.6°C · Low 22.4°C · 229 mm rain
- Tailândia in DecemberBrazil · 274 kmHigh 32.2°C · Low 23.8°C · 149 mm rain
- Tucuruí in DecemberBrazil · 275 kmHigh 30.5°C · Low 24.6°C · 198 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 Açailândia) is explained once on the Açailândia year overview and on the Sources, method and limits page.