Climate averages 1991–2020
Duque de Caxias weather
in December.
A hot, very wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Duque de Caxias: daytime highs average 29.8°C and nights cool to about 22.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 237 mm of rain on roughly 21 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 30 min on an average December day.
The nearest other city in this atlas is Belford Roxo (9 km away). In December its highs average 30.0°C, about as warm as Duque de Caxias, with 192 mm of rain.
Among the 448 cities listed in Brazil, Duque de Caxias ranks joint 109th of 448 for the warmest December highs and joint 357th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Duque de Caxias is 1.4°C warmer than that mean.
From December to January, average highs rise by 1.0°C to 30.9°C, and monthly rainfall rises from 237 mm to 265 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
Duque de Caxias climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.9°C23.2°C | 23.2°C | 265 | 21.2 | 13.413 h |
| February | 31.4°C23.3°C | 23.3°C | 200 | 17.9 | 12.913 h |
| March | 29.7°C22.6°C | 22.6°C | 216 | 21.0 | 12.212 h |
| April | 28.1°C21.0°C | 21.0°C | 106 | 13.5 | 11.612 h |
| May | 25.8°C18.3°C | 18.3°C | 74 | 11.0 | 11.011 h |
| June | 25.4°C16.9°C | 16.9°C | 47 | 7.2 | 10.811 h |
| July | 25.1°C16.1°C | 16.1°C | 47 | 7.4 | 10.911 h |
| August | 26.1°C16.7°C | 16.7°C | 44 | 7.5 | 11.311 h |
| September | 27.1°C18.2°C | 18.2°C | 86 | 11.0 | 11.912 h |
| October | 28.2°C19.8°C | 19.8°C | 121 | 14.3 | 12.613 h |
| November | 28.1°C20.8°C | 20.8°C | 213 | 19.0 | 13.213 h |
| December, selected | 29.8°C22.3°C | 22.3°C | 237 | 21.1 | 13.514 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
- Belford Roxo in DecemberBrazil · 9 kmHigh 30.0°C · Low 22.5°C · 192 mm rain
- Nova Iguaçu in DecemberBrazil · 15 kmHigh 30.0°C · Low 22.3°C · 192 mm rain
- Rio de Janeiro in DecemberBrazil · 19 kmHigh 29.7°C · Low 22.6°C · 151 mm rain
- Barra da Tijuca in DecemberBrazil · 24 kmHigh 30.2°C · Low 23.0°C · 151 mm rain
- Queimados in DecemberBrazil · 26 kmHigh 29.8°C · Low 21.8°C · 192 mm rain
- São Gonçalo in DecemberBrazil · 27 kmHigh 29.1°C · Low 22.1°C · 229 mm rain
- Magé in DecemberBrazil · 31 kmHigh 29.1°C · Low 21.9°C · 229 mm rain
- Petrópolis in DecemberBrazil · 34 kmHigh 26.1°C · Low 18.9°C · 295 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 Duque de Caxias) is explained once on the Duque de Caxias year overview and on the Sources, method and limits page.