Climate averages 1991–2020
Bacabal weather
in September.
A very hot, very dry month: the 2nd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Bacabal: daytime highs average 34.9°C and nights cool to about 24.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 7.4 mm of rain on roughly 1 day, which makes September a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.
The nearest other city in this atlas is Santa Inês (91 km away). In September its highs average 34.0°C, 0.9°C cooler than Bacabal, with 12 mm of rain.
Among the 448 cities listed in Brazil, Bacabal ranks joint 10th of 448 for the warmest September highs and 37th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Bacabal is 7.4°C warmer than that mean.
From September to October, average highs rise by 0.2°C to 35.1°C, and monthly rainfall rises from 7.4 mm to 17 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
Bacabal climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.3°C23.5°C | 23.5°C | 249 | 25.1 | 12.312 h |
| February | 29.8°C23.2°C | 23.2°C | 270 | 25.2 | 12.212 h |
| March | 29.6°C23.2°C | 23.2°C | 316 | 29.1 | 12.112 h |
| April | 29.6°C23.3°C | 23.3°C | 265 | 26.7 | 12.012 h |
| May | 30.0°C23.5°C | 23.5°C | 130 | 18.5 | 11.912 h |
| June | 31.0°C23.4°C | 23.4°C | 35 | 7.2 | 11.912 h |
| July | 32.2°C23.4°C | 23.4°C | 15 | 3.0 | 11.912 h |
| August | 33.9°C23.9°C | 23.9°C | 5.4 | 1.1 | 12.012 h |
| September, selected | 34.9°C24.7°C | 24.7°C | 7.4 | 1.3 | 12.112 h |
| October | 35.1°C25.2°C | 25.2°C | 17 | 3.4 | 12.212 h |
| November | 34.1°C25.1°C | 25.1°C | 51 | 8.1 | 12.312 h |
| December | 32.6°C24.5°C | 24.5°C | 131 | 15.3 | 12.412 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
- Santa Inês in SeptemberBrazil · 91 kmHigh 34.0°C · Low 24.3°C · 12 mm rain
- Codó in SeptemberBrazil · 102 kmHigh 35.2°C · Low 24.2°C · 6.2 mm rain
- Barra do Corda in SeptemberBrazil · 151 kmHigh 34.9°C · Low 23.9°C · 10 mm rain
- Chapadinha in SeptemberBrazil · 167 kmHigh 34.9°C · Low 24.2°C · 3.5 mm rain
- Caxias in SeptemberBrazil · 173 kmHigh 36.1°C · Low 23.9°C · 5.0 mm rain
- Pinheiro in SeptemberBrazil · 193 kmHigh 32.0°C · Low 24.2°C · 14 mm rain
- São Luís in SeptemberBrazil · 197 kmHigh 31.2°C · Low 25.5°C · 11 mm rain
- São José de Ribamar in SeptemberBrazil · 203 kmHigh 30.1°C · Low 25.8°C · 11 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 Bacabal) is explained once on the Bacabal year overview and on the Sources, method and limits page.