Climate averages 1991–2020
Ceará-Mirim weather
in December.
A hot, fairly dry month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Ceará-Mirim: daytime highs average 30.3°C and nights cool to about 24.4°C. By daytime temperature it is the warmest month of the year.
Expect about 23 mm of rain on roughly 9 days, which makes December a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average December day.
The nearest other city in this atlas is Macaíba (26 km away). In December its highs average 31.0°C, 0.6°C warmer than Ceará-Mirim, with 40 mm of rain.
Among the 448 cities listed in Brazil, Ceará-Mirim ranks joint 78th of 448 for the warmest December highs and 17th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Ceará-Mirim is 1.9°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 30.2°C, and monthly rainfall rises from 23 mm to 51 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
Ceará-Mirim climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C24.4°C | 24.4°C | 51 | 14.5 | 12.412 h |
| February | 30.2°C24.4°C | 24.4°C | 65 | 15.7 | 12.312 h |
| March | 29.9°C24.3°C | 24.3°C | 99 | 20.4 | 12.112 h |
| April | 29.3°C24.2°C | 24.2°C | 113 | 20.2 | 12.012 h |
| May | 28.9°C23.9°C | 23.9°C | 85 | 15.4 | 11.912 h |
| June | 27.9°C23.1°C | 23.1°C | 75 | 14.5 | 11.812 h |
| July | 27.4°C22.4°C | 22.4°C | 61 | 12.1 | 11.812 h |
| August | 28.0°C22.4°C | 22.4°C | 21 | 7.1 | 11.912 h |
| September | 29.0°C23.0°C | 23.0°C | 12 | 4.6 | 12.112 h |
| October | 29.8°C23.7°C | 23.7°C | 10 | 3.5 | 12.212 h |
| November | 30.2°C24.2°C | 24.2°C | 12 | 4.7 | 12.412 h |
| December, selected | 30.3°C24.4°C | 24.4°C | 23 | 9.4 | 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
- Macaíba in DecemberBrazil · 26 kmHigh 31.0°C · Low 24.4°C · 40 mm rain
- Natal in DecemberBrazil · 30 kmHigh 29.5°C · Low 24.7°C · 40 mm rain
- Parnamirim in DecemberBrazil · 36 kmHigh 29.9°C · Low 24.5°C · 25 mm rain
- Santa Rita in DecemberBrazil · 172 kmHigh 30.1°C · Low 24.5°C · 33 mm rain
- João Pessoa in DecemberBrazil · 176 kmHigh 29.3°C · Low 24.5°C · 29 mm rain
- Campina Grande in DecemberBrazil · 184 kmHigh 30.4°C · Low 20.7°C · 15 mm rain
- Mossoró in DecemberBrazil · 218 kmHigh 34.4°C · Low 24.4°C · 16 mm rain
- Goiana in DecemberBrazil · 219 kmHigh 30.1°C · Low 23.9°C · 30 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 Ceará-Mirim) is explained once on the Ceará-Mirim year overview and on the Sources, method and limits page.