Climate averages 1991–2020
Chapadinha weather
in December.
A hot, moderately wet month: the 4th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Chapadinha: daytime highs average 33.8°C and nights cool to about 24.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 63 mm of rain on roughly 9 days, which makes December a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average December day.
The nearest other city in this atlas is Codó (98 km away). In December its highs average 32.9°C, 0.9°C cooler than Chapadinha, with 112 mm of rain.
Among the 448 cities listed in Brazil, Chapadinha ranks joint 12th of 448 for the warmest December highs and 69th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Chapadinha is 5.4°C warmer than that mean.
From December to January, average highs fall by 2.8°C to 31.0°C, and monthly rainfall rises from 63 mm to 198 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
Chapadinha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C23.5°C | 23.5°C | 198 | 21.4 | 12.312 h |
| February | 30.0°C23.1°C | 23.1°C | 253 | 23.0 | 12.212 h |
| March | 29.7°C22.9°C | 22.9°C | 300 | 27.5 | 12.112 h |
| April | 29.5°C22.9°C | 22.9°C | 312 | 26.1 | 12.012 h |
| May | 29.9°C23.0°C | 23.0°C | 175 | 18.8 | 11.912 h |
| June | 30.6°C22.9°C | 22.9°C | 42 | 8.2 | 11.912 h |
| July | 31.8°C23.0°C | 23.0°C | 23 | 3.9 | 11.912 h |
| August | 33.6°C23.6°C | 23.6°C | 3.8 | 0.7 | 12.012 h |
| September | 34.9°C24.2°C | 24.2°C | 3.5 | 0.7 | 12.112 h |
| October | 35.5°C24.6°C | 24.6°C | 12 | 1.4 | 12.212 h |
| November | 34.9°C24.9°C | 24.9°C | 29 | 4.0 | 12.312 h |
| December, selected | 33.8°C24.7°C | 24.7°C | 63 | 9.3 | 12.312 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
- Codó in DecemberBrazil · 98 kmHigh 32.9°C · Low 24.3°C · 112 mm rain
- Caxias in DecemberBrazil · 124 kmHigh 33.1°C · Low 24.1°C · 103 mm rain
- São José de Ribamar in DecemberBrazil · 153 kmHigh 29.3°C · Low 25.8°C · 75 mm rain
- Teresina in DecemberBrazil · 162 kmHigh 33.8°C · Low 24.2°C · 93 mm rain
- Bacabal in DecemberBrazil · 167 kmHigh 32.6°C · Low 24.5°C · 131 mm rain
- São Luís in DecemberBrazil · 171 kmHigh 30.4°C · Low 25.5°C · 73 mm rain
- Parnaíba in DecemberBrazil · 199 kmHigh 32.1°C · Low 25.5°C · 35 mm rain
- Santa Inês in DecemberBrazil · 224 kmHigh 32.3°C · Low 24.5°C · 120 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 Chapadinha) is explained once on the Chapadinha year overview and on the Sources, method and limits page.