Climate averages 1991–2020
Russas weather
in December.
A very hot, fairly dry 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 very hot month in Russas: daytime highs average 34.3°C and nights cool to about 24.3°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 16 mm of rain on roughly 3 days, which makes December a fairly dry month (the 5th 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 Mossoró (75 km away). In December its highs average 34.4°C, about as warm as Russas, with 16 mm of rain.
Among the 448 cities listed in Brazil, Russas ranks joint 8th of 448 for the warmest December highs and joint 6th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Russas is 5.9°C warmer than that mean.
From December to January, average highs fall by 1.2°C to 33.2°C, and monthly rainfall rises from 16 mm to 74 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
Russas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.2°C24.2°C | 24.2°C | 74 | 11.7 | 12.412 h |
| February | 32.4°C24.0°C | 24.0°C | 95 | 14.1 | 12.312 h |
| March | 31.6°C23.9°C | 23.9°C | 161 | 19.2 | 12.112 h |
| April | 31.2°C23.8°C | 23.8°C | 152 | 17.6 | 12.012 h |
| May | 31.9°C23.8°C | 23.8°C | 71 | 10.4 | 11.912 h |
| June | 32.1°C23.3°C | 23.3°C | 29 | 6.4 | 11.812 h |
| July | 32.7°C22.9°C | 22.9°C | 18 | 3.0 | 11.912 h |
| August | 34.3°C22.7°C | 22.7°C | 3.0 | 0.6 | 12.012 h |
| September | 35.2°C23.1°C | 23.1°C | 1.2 | 0.2 | 12.112 h |
| October | 35.2°C23.6°C | 23.6°C | 2.6 | 0.3 | 12.212 h |
| November | 34.9°C24.0°C | 24.0°C | 2.9 | 0.4 | 12.312 h |
| December, selected | 34.3°C24.3°C | 24.3°C | 16 | 3.4 | 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
- Mossoró in DecemberBrazil · 75 kmHigh 34.4°C · Low 24.4°C · 16 mm rain
- Cascavel, Brazil in DecemberBrazil · 94 kmHigh 30.0°C · Low 25.2°C · 27 mm rain
- Pacajus in DecemberBrazil · 101 kmHigh 32.1°C · Low 24.2°C · 26 mm rain
- Horizonte in DecemberBrazil · 109 kmHigh 31.5°C · Low 24.2°C · 30 mm rain
- Quixadá in DecemberBrazil · 115 kmHigh 34.4°C · Low 23.9°C · 21 mm rain
- Pacatuba in DecemberBrazil · 128 kmHigh 31.7°C · Low 24.5°C · 30 mm rain
- Eusébio in DecemberBrazil · 128 kmHigh 30.8°C · Low 25.0°C · 30 mm rain
- Maracanaú in DecemberBrazil · 138 kmHigh 31.3°C · Low 24.9°C · 27 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 Russas) is explained once on the Russas year overview and on the Sources, method and limits page.