Climate averages 1991–2020
Picos weather
in December.
A very hot, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a very hot month in Picos: daytime highs average 34.5°C and nights cool to about 25.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 58 mm of rain on roughly 8 days, which makes December a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average December day.
The nearest other city in this atlas is Araripina (120 km away). In December its highs average 31.4°C, 3.1°C cooler than Picos, with 54 mm of rain.
Among the 448 cities listed in Brazil, Picos ranks joint 3rd of 448 for the warmest December highs and joint 66th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Picos is 6.0°C warmer than that mean.
From December to January, average highs fall by 2.4°C to 32.1°C, and monthly rainfall rises from 58 mm to 141 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
Picos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.1°C24.2°C | 24.2°C | 141 | 16.6 | 12.512 h |
| February | 31.2°C23.5°C | 23.5°C | 141 | 17.1 | 12.312 h |
| March | 30.9°C23.3°C | 23.3°C | 149 | 18.9 | 12.112 h |
| April | 31.4°C23.4°C | 23.4°C | 88 | 11.6 | 12.012 h |
| May | 32.5°C23.8°C | 23.8°C | 30 | 4.8 | 11.812 h |
| June | 32.5°C23.1°C | 23.1°C | 3.9 | 1.0 | 11.712 h |
| July | 32.6°C22.4°C | 22.4°C | 2.2 | 0.5 | 11.812 h |
| August | 33.9°C22.6°C | 22.6°C | 0.7 | 0.1 | 11.912 h |
| September | 35.7°C24.2°C | 24.2°C | 1.7 | 0.2 | 12.112 h |
| October | 36.6°C25.9°C | 25.9°C | 9.4 | 1.4 | 12.312 h |
| November | 35.8°C26.2°C | 26.2°C | 25 | 4.5 | 12.412 h |
| December, selected | 34.5°C25.7°C | 25.7°C | 58 | 7.8 | 12.513 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
- Araripina in DecemberBrazil · 120 kmHigh 31.4°C · Low 22.3°C · 54 mm rain
- Crato in DecemberBrazil · 228 kmHigh 32.9°C · Low 23.0°C · 36 mm rain
- Crateús in DecemberBrazil · 229 kmHigh 34.3°C · Low 23.6°C · 20 mm rain
- Juazeiro do Norte in DecemberBrazil · 238 kmHigh 33.2°C · Low 23.2°C · 33 mm rain
- Casa Nova in DecemberBrazil · 239 kmHigh 33.2°C · Low 24.0°C · 56 mm rain
- Iguatu in DecemberBrazil · 252 kmHigh 34.6°C · Low 24.4°C · 28 mm rain
- Teresina in DecemberBrazil · 266 kmHigh 33.8°C · Low 24.2°C · 93 mm rain
- Petrolina in DecemberBrazil · 279 kmHigh 33.4°C · Low 23.2°C · 50 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 Picos) is explained once on the Picos year overview and on the Sources, method and limits page.