Climate averages 1991–2020
Viana, Brazil 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 Viana, Brazil: daytime highs average 28.8°C and nights cool to about 22.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 206 mm of rain on roughly 16 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 20 min on an average December day.
The nearest other city in this atlas is Cariacica (16 km away). In December its highs average 27.9°C, 0.9°C cooler than Viana, Brazil, with 227 mm of rain.
Among the 448 cities listed in Brazil, Viana, Brazil ranks joint 192nd of 448 for the warmest December highs and joint 263rd of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Viana, Brazil is 0.3°C warmer than that mean.
From December to January, average highs rise by 0.9°C to 29.7°C, and monthly rainfall falls from 206 mm to 138 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
Viana, Brazil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C23.2°C | 23.2°C | 138 | 12.1 | 13.213 h |
| February | 30.1°C23.3°C | 23.3°C | 95 | 10.1 | 12.813 h |
| March | 29.3°C23.0°C | 23.0°C | 159 | 14.3 | 12.212 h |
| April | 27.7°C21.7°C | 21.7°C | 104 | 14.4 | 11.612 h |
| May | 25.9°C19.6°C | 19.6°C | 63 | 10.5 | 11.211 h |
| June | 25.2°C18.4°C | 18.4°C | 38 | 7.5 | 10.911 h |
| July | 24.6°C17.8°C | 17.8°C | 42 | 8.2 | 11.011 h |
| August | 25.0°C18.0°C | 18.0°C | 43 | 7.9 | 11.411 h |
| September | 26.2°C19.2°C | 19.2°C | 63 | 9.7 | 12.012 h |
| October | 27.2°C20.5°C | 20.5°C | 113 | 11.8 | 12.513 h |
| November | 27.3°C21.5°C | 21.5°C | 208 | 15.9 | 13.113 h |
| December, selected | 28.8°C22.6°C | 22.6°C | 206 | 16.3 | 13.313 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
- Cariacica in DecemberBrazil · 16 kmHigh 27.9°C · Low 22.2°C · 227 mm rain
- Vila Velha in DecemberBrazil · 22 kmHigh 27.9°C · Low 22.9°C · 156 mm rain
- Guarapari in DecemberBrazil · 31 kmHigh 28.4°C · Low 23.3°C · 168 mm rain
- Serra in DecemberBrazil · 35 kmHigh 28.1°C · Low 22.4°C · 156 mm rain
- Aracruz in DecemberBrazil · 68 kmHigh 29.1°C · Low 22.1°C · 177 mm rain
- Cachoeiro de Itapemirim in DecemberBrazil · 82 kmHigh 29.5°C · Low 21.8°C · 225 mm rain
- Colatina in DecemberBrazil · 96 kmHigh 29.7°C · Low 22.2°C · 168 mm rain
- Linhares in DecemberBrazil · 120 kmHigh 29.3°C · Low 22.5°C · 171 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 Viana) is explained once on the Viana, Brazil year overview and on the Sources, method and limits page.