Climate averages 1991–2020
Petrolina weather
in April.
A hot, fairly dry month: the 8th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Petrolina: daytime highs average 31.9°C and nights cool to about 22.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 32 mm of rain on roughly 6 days, which makes April a fairly dry month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average April day.
The nearest other city in this atlas is Casa Nova (58 km away). In April its highs average 31.8°C, about as warm as Petrolina, with 43 mm of rain.
Among the 448 cities listed in Brazil, Petrolina ranks joint 2nd of 448 for the warmest April highs and 3rd of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Petrolina is 4.9°C warmer than that mean.
From April to May, average highs fall by 0.9°C to 31.0°C, and monthly rainfall falls from 32 mm to 10 mm.
The annual picture
April 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
Petrolina climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.6°C23.0°C | 23.0°C | 80 | 8.7 | 12.613 h |
| February | 32.3°C22.9°C | 22.9°C | 67 | 9.5 | 12.412 h |
| March | 32.1°C22.9°C | 22.9°C | 79 | 10.1 | 12.212 h |
| April, selected | 31.9°C22.6°C | 22.6°C | 32 | 6.0 | 11.912 h |
| May | 31.0°C21.8°C | 21.8°C | 10 | 2.0 | 11.712 h |
| June | 29.5°C20.6°C | 20.6°C | 3.4 | 0.7 | 11.612 h |
| July | 29.0°C19.6°C | 19.6°C | 2.8 | 0.4 | 11.612 h |
| August | 30.1°C19.4°C | 19.4°C | 1.2 | 0.2 | 11.812 h |
| September | 32.4°C20.3°C | 20.3°C | 1.0 | 0.1 | 12.012 h |
| October | 34.0°C21.8°C | 21.8°C | 10 | 1.5 | 12.312 h |
| November | 33.8°C22.8°C | 22.8°C | 32 | 3.9 | 12.513 h |
| December | 33.4°C23.2°C | 23.2°C | 50 | 6.2 | 12.713 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
April in nearby cities
- Casa Nova in AprilBrazil · 58 kmHigh 31.8°C · Low 23.3°C · 43 mm rain
- Senhor do Bonfim in AprilBrazil · 123 kmHigh 28.3°C · Low 20.4°C · 54 mm rain
- Campo Formoso in AprilBrazil · 125 kmHigh 28.3°C · Low 20.5°C · 54 mm rain
- Jacobina in AprilBrazil · 198 kmHigh 28.4°C · Low 21.0°C · 55 mm rain
- Araripina in AprilBrazil · 203 kmHigh 28.6°C · Low 20.9°C · 95 mm rain
- Paulo Afonso in AprilBrazil · 251 kmHigh 31.9°C · Low 22.5°C · 29 mm rain
- Irecê in AprilBrazil · 259 kmHigh 29.6°C · Low 20.4°C · 34 mm rain
- Crato in AprilBrazil · 269 kmHigh 29.6°C · Low 22.1°C · 106 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 Petrolina) is explained once on the Petrolina year overview and on the Sources, method and limits page.