Climate averages 1991–2020
Angra dos Reis weather
in December.
A hot, very wet month: the 4th 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 Angra dos Reis: daytime highs average 28.0°C and nights cool to about 23.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 244 mm of rain on roughly 23 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 31 min on an average December day.
The nearest other city in this atlas is Barra Mansa (54 km away). In December its highs average 27.9°C, about as warm as Angra dos Reis, with 248 mm of rain.
Among the 448 cities listed in Brazil, Angra dos Reis ranks joint 248th of 448 for the warmest December highs and joint 367th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Angra dos Reis is 0.5°C cooler than that mean.
From December to January, average highs rise by 1.0°C to 29.0°C, and monthly rainfall rises from 244 mm to 301 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
Angra dos Reis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.0°C24.1°C | 24.1°C | 301 | 24.1 | 13.413 h |
| February | 29.5°C24.3°C | 24.3°C | 221 | 20.2 | 12.913 h |
| March | 28.4°C23.5°C | 23.5°C | 232 | 22.9 | 12.212 h |
| April | 27.1°C22.1°C | 22.1°C | 135 | 15.6 | 11.612 h |
| May | 25.1°C19.9°C | 19.9°C | 95 | 12.4 | 11.011 h |
| June | 24.7°C18.7°C | 18.7°C | 59 | 8.5 | 10.711 h |
| July | 24.2°C18.1°C | 18.1°C | 64 | 8.7 | 10.911 h |
| August | 24.8°C18.4°C | 18.4°C | 57 | 8.6 | 11.311 h |
| September | 25.4°C19.5°C | 19.5°C | 104 | 13.2 | 11.912 h |
| October | 26.2°C20.7°C | 20.7°C | 136 | 16.7 | 12.613 h |
| November | 26.4°C21.5°C | 21.5°C | 203 | 20.2 | 13.213 h |
| December, selected | 28.0°C23.0°C | 23.0°C | 244 | 22.7 | 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
- Barra Mansa in DecemberBrazil · 54 kmHigh 27.9°C · Low 19.7°C · 248 mm rain
- Volta Redonda in DecemberBrazil · 58 kmHigh 28.1°C · Low 19.8°C · 240 mm rain
- Itaguaí in DecemberBrazil · 58 kmHigh 29.2°C · Low 22.6°C · 226 mm rain
- Resende in DecemberBrazil · 61 kmHigh 27.2°C · Low 19.2°C · 379 mm rain
- Seropédica in DecemberBrazil · 69 kmHigh 29.6°C · Low 21.8°C · 226 mm rain
- Barra do Piraí in DecemberBrazil · 78 kmHigh 28.5°C · Low 20.5°C · 248 mm rain
- Japeri in DecemberBrazil · 79 kmHigh 30.3°C · Low 22.3°C · 226 mm rain
- Cruzeiro in DecemberBrazil · 82 kmHigh 27.9°C · Low 19.3°C · 241 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 Angra dos Reis) is explained once on the Angra dos Reis year overview and on the Sources, method and limits page.