Climate averages 1991–2020
Casa Nova weather
by month.
See how the year changes. October has the highest average daily maximum; August has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Casa Nova averages a daytime high of 32.0°C and a nighttime low of 22.5°C, with about 434 mm of rain on roughly 57 days. October is the warmest month (average high 34.2°C) and July the coolest (29.7°C). January is the wettest month with 97 mm; August is the driest with under 1 mm.
The annual picture
A year in Casa Nova
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
Casa Nova climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.3°C23.7°C | 23.7°C | 97 | 10.4 | 12.613 h |
| February | 31.9°C23.5°C | 23.5°C | 82 | 11.1 | 12.412 h |
| March | 31.8°C23.6°C | 23.6°C | 96 | 11.9 | 12.212 h |
| April | 31.8°C23.3°C | 23.3°C | 43 | 7.4 | 11.912 h |
| May | 31.3°C22.5°C | 22.5°C | 10 | 2.3 | 11.712 h |
| June | 30.1°C21.3°C | 21.3°C | 2.4 | 0.4 | 11.612 h |
| July | 29.7°C20.3°C | 20.3°C | 2.2 | 0.2 | 11.612 h |
| August | 30.7°C20.1°C | 20.1°C | 0.7 | 0.1 | 11.812 h |
| September | 32.8°C21.2°C | 21.2°C | 1.0 | 0.1 | 12.012 h |
| October | 34.2°C22.8°C | 22.8°C | 9.5 | 1.5 | 12.312 h |
| November | 33.8°C23.7°C | 23.7°C | 34 | 4.5 | 12.513 h |
| December | 33.2°C24.0°C | 24.0°C | 56 | 6.9 | 12.613 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
Nearby cities
- PetrolinaBrazil · 58 kmHigh 31.8°C · Low 21.7°C · 368 mm rain a year
- Campo FormosoBrazil · 165 kmHigh 27.6°C · Low 19.4°C · 693 mm rain a year
- Senhor do BonfimBrazil · 167 kmHigh 27.7°C · Low 19.3°C · 693 mm rain a year
- AraripinaBrazil · 185 kmHigh 29.6°C · Low 20.4°C · 767 mm rain a year
- JacobinaBrazil · 229 kmHigh 27.9°C · Low 19.9°C · 654 mm rain a year
- PicosBrazil · 239 kmHigh 33.3°C · Low 24.0°C · 650 mm rain a year
- IrecêBrazil · 256 kmHigh 29.4°C · Low 19.4°C · 473 mm rain a year
- CratoBrazil · 276 kmHigh 31.0°C · Low 21.7°C · 678 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC-3, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at -9.20°, -41.00° (4 km from the city centre), adjusted up by 0.6°C for the difference between the city's elevation (311 m) and the cell's (405 m). Rain comes from the 0.25° cell at -9.25°, -41.00°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.