Climate averages 1991–2020
Barreiras weather
in October.
A very hot, moderately wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a very hot month in Barreiras: daytime highs average 34.1°C and nights cool to about 23.1°C. By daytime temperature it is the warmest month of the year.
Expect about 51 mm of rain on roughly 7 days, which makes October a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average October day.
The nearest other city in this atlas is Luis Eduardo Magalhães (87 km away). In October its highs average 31.4°C, 2.6°C cooler than Barreiras, with 69 mm of rain.
Among the 448 cities listed in Brazil, Barreiras ranks joint 21st of 448 for the warmest October highs and 98th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Barreiras is 5.8°C warmer than that mean.
From October to November, average highs fall by 2.7°C to 31.3°C, and monthly rainfall rises from 51 mm to 154 mm.
The annual picture
October 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
Barreiras climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C21.8°C | 21.8°C | 139 | 16.4 | 12.713 h |
| February | 30.1°C21.7°C | 21.7°C | 123 | 15.8 | 12.512 h |
| March | 30.1°C21.7°C | 21.7°C | 142 | 16.5 | 12.212 h |
| April | 30.2°C21.6°C | 21.6°C | 68 | 10.2 | 11.812 h |
| May | 30.4°C20.9°C | 20.9°C | 18 | 3.1 | 11.612 h |
| June | 30.1°C19.8°C | 19.8°C | 1.5 | 0.3 | 11.411 h |
| July | 30.2°C19.0°C | 19.0°C | 0.2 | 0.0 | 11.511 h |
| August | 31.7°C19.6°C | 19.6°C | 0.5 | 0.1 | 11.712 h |
| September | 33.8°C21.6°C | 21.6°C | 8.2 | 1.1 | 12.012 h |
| October, selected | 34.1°C23.1°C | 23.1°C | 51 | 6.5 | 12.412 h |
| November | 31.3°C22.5°C | 22.5°C | 154 | 14.1 | 12.713 h |
| December | 30.7°C22.0°C | 22.0°C | 143 | 14.7 | 12.813 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
October in nearby cities
- Luis Eduardo Magalhães in OctoberBrazil · 87 kmHigh 31.4°C · Low 20.8°C · 69 mm rain
- Guanambi in OctoberBrazil · 332 kmHigh 32.3°C · Low 20.7°C · 35 mm rain
- Irecê in OctoberBrazil · 354 kmHigh 31.6°C · Low 19.8°C · 21 mm rain
- Palmas in OctoberBrazil · 426 kmHigh 33.3°C · Low 24.0°C · 129 mm rain
- Brumado in OctoberBrazil · 426 kmHigh 31.8°C · Low 20.7°C · 36 mm rain
- Janaúba in OctoberBrazil · 445 kmHigh 32.8°C · Low 21.4°C · 53 mm rain
- Gurupi in OctoberBrazil · 446 kmHigh 33.2°C · Low 24.3°C · 108 mm rain
- Formosa, Brazil in OctoberBrazil · 454 kmHigh 30.1°C · Low 20.2°C · 103 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 Barreiras) is explained once on the Barreiras year overview and on the Sources, method and limits page.