Climate averages 1991–2020
Barreiras weather
in January.
A hot, wet month: the joint 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Barreiras: daytime highs average 30.2°C and nights cool to about 21.8°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 139 mm of rain on roughly 16 days, which makes January a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average January day.
The nearest other city in this atlas is Luis Eduardo Magalhães (87 km away). In January its highs average 27.8°C, 2.4°C cooler than Barreiras, with 177 mm of rain.
Among the 448 cities listed in Brazil, Barreiras ranks joint 69th of 448 for the warmest January highs and joint 106th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Barreiras is 1.8°C warmer than that mean.
From January to February, average highs fall by 0.1°C to 30.1°C, and monthly rainfall falls from 139 mm to 123 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Luis Eduardo Magalhães in JanuaryBrazil · 87 kmHigh 27.8°C · Low 19.7°C · 177 mm rain
- Guanambi in JanuaryBrazil · 332 kmHigh 30.7°C · Low 21.5°C · 82 mm rain
- Irecê in JanuaryBrazil · 354 kmHigh 29.9°C · Low 20.3°C · 100 mm rain
- Palmas in JanuaryBrazil · 426 kmHigh 29.8°C · Low 22.7°C · 354 mm rain
- Brumado in JanuaryBrazil · 426 kmHigh 31.2°C · Low 21.8°C · 73 mm rain
- Janaúba in JanuaryBrazil · 445 kmHigh 30.4°C · Low 21.6°C · 112 mm rain
- Gurupi in JanuaryBrazil · 446 kmHigh 29.6°C · Low 22.6°C · 290 mm rain
- Formosa, Brazil in JanuaryBrazil · 454 kmHigh 27.3°C · Low 19.5°C · 202 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.