Climate averages 1991–2020
Arapiraca weather
in September.
A warm, fairly dry month: the 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Arapiraca: daytime highs average 27.4°C and nights cool to about 19.9°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 29 mm of rain on roughly 11 days, which makes September a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average September day.
The nearest other city in this atlas is Rio Largo (94 km away). In September its highs average 26.5°C, 0.9°C cooler than Arapiraca, with 65 mm of rain.
Among the 448 cities listed in Brazil, Arapiraca ranks joint 219th of 448 for the warmest September highs and joint 87th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Arapiraca is 0.1°C cooler than that mean.
From September to October, average highs rise by 2.3°C to 29.7°C, and monthly rainfall falls from 29 mm to 21 mm.
The annual picture
September 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
Arapiraca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.7°C22.6°C | 22.6°C | 34 | 8.6 | 12.613 h |
| February | 31.5°C22.7°C | 22.7°C | 38 | 9.0 | 12.412 h |
| March | 31.3°C22.8°C | 22.8°C | 49 | 11.5 | 12.212 h |
| April | 30.1°C22.4°C | 22.4°C | 63 | 14.1 | 11.912 h |
| May | 28.0°C21.5°C | 21.5°C | 74 | 16.8 | 11.712 h |
| June | 26.3°C20.4°C | 20.4°C | 67 | 19.2 | 11.612 h |
| July | 25.3°C19.4°C | 19.4°C | 63 | 19.3 | 11.612 h |
| August | 25.7°C19.1°C | 19.1°C | 42 | 16.2 | 11.812 h |
| September, selected | 27.4°C19.9°C | 19.9°C | 29 | 11.4 | 12.012 h |
| October | 29.7°C21.1°C | 21.1°C | 21 | 6.4 | 12.312 h |
| November | 31.2°C21.8°C | 21.8°C | 28 | 4.3 | 12.613 h |
| December | 32.0°C22.4°C | 22.4°C | 17 | 4.7 | 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
September in nearby cities
- Rio Largo in SeptemberBrazil · 94 kmHigh 26.5°C · Low 21.1°C · 65 mm rain
- Garanhuns in SeptemberBrazil · 98 kmHigh 24.1°C · Low 16.1°C · 30 mm rain
- Maceió in SeptemberBrazil · 102 kmHigh 26.4°C · Low 22.6°C · 68 mm rain
- Itabaiana in SeptemberBrazil · 133 kmHigh 26.9°C · Low 19.9°C · 43 mm rain
- Aracaju in SeptemberBrazil · 136 kmHigh 26.2°C · Low 22.5°C · 67 mm rain
- São Cristóvão in SeptemberBrazil · 152 kmHigh 26.0°C · Low 22.3°C · 64 mm rain
- Arcoverde in SeptemberBrazil · 154 kmHigh 29.6°C · Low 18.0°C · 4.0 mm rain
- Belo Jardim in SeptemberBrazil · 160 kmHigh 27.8°C · Low 18.2°C · 8.2 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 Arapiraca) is explained once on the Arapiraca year overview and on the Sources, method and limits page.