Climate averages 1991–2020
Mossoró weather
in December.
A very hot, fairly dry month: the 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 Mossoró: daytime highs average 34.4°C and nights cool to about 24.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 16 mm of rain on roughly 4 days, which makes December a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average December day.
The nearest other city in this atlas is Russas (75 km away). In December its highs average 34.3°C, about as warm as Mossoró, with 16 mm of rain.
Among the 448 cities listed in Brazil, Mossoró ranks joint 6th 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; Mossoró is 5.9°C warmer than that mean.
From December to January, average highs fall by 1.1°C to 33.2°C, and monthly rainfall rises from 16 mm to 68 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
Mossoró climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.2°C24.4°C | 24.4°C | 68 | 12.0 | 12.412 h |
| February | 32.6°C24.2°C | 24.2°C | 84 | 13.4 | 12.312 h |
| March | 31.8°C24.1°C | 24.1°C | 127 | 18.3 | 12.112 h |
| April | 31.6°C23.9°C | 23.9°C | 117 | 16.6 | 12.012 h |
| May | 32.2°C23.9°C | 23.9°C | 56 | 8.9 | 11.912 h |
| June | 32.2°C23.3°C | 23.3°C | 29 | 5.9 | 11.812 h |
| July | 32.5°C22.7°C | 22.7°C | 18 | 3.0 | 11.812 h |
| August | 34.0°C22.7°C | 22.7°C | 2.8 | 0.5 | 11.912 h |
| September | 34.9°C23.1°C | 23.1°C | 0.9 | 0.2 | 12.112 h |
| October | 35.2°C23.6°C | 23.6°C | 2.1 | 0.2 | 12.212 h |
| November | 34.9°C24.0°C | 24.0°C | 3.1 | 0.5 | 12.312 h |
| December, selected | 34.4°C24.4°C | 24.4°C | 16 | 4.1 | 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
- Russas in DecemberBrazil · 75 kmHigh 34.3°C · Low 24.3°C · 16 mm rain
- Cascavel, Brazil in DecemberBrazil · 154 kmHigh 30.0°C · Low 25.2°C · 27 mm rain
- Pacajus in DecemberBrazil · 167 kmHigh 32.1°C · Low 24.2°C · 26 mm rain
- Horizonte in DecemberBrazil · 175 kmHigh 31.5°C · Low 24.2°C · 30 mm rain
- Quixadá in DecemberBrazil · 187 kmHigh 34.4°C · Low 23.9°C · 21 mm rain
- Eusébio in DecemberBrazil · 189 kmHigh 30.8°C · Low 25.0°C · 30 mm rain
- Pacatuba in DecemberBrazil · 195 kmHigh 31.7°C · Low 24.5°C · 30 mm rain
- Maracanaú in DecemberBrazil · 204 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 Mossoró) is explained once on the Mossoró year overview and on the Sources, method and limits page.