Barreiras climate
Barreiras (Bahia, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 27 °C80 °F, and about 892 mm35 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Barreiras climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3189 | 2271 | 2680 | 1606.3 |
| Feb | 3188 | 2170 | 2679 | 1224.8 |
| Mar | 3188 | 2171 | 2679 | 1475.8 |
| Apr | 3289 | 2170 | 2679 | 752.9 |
| May | 3391 | 2169 | 2780 | 200.8 |
| Jun | 3290 | 1966 | 2678 | 30.1 |
| Jul | 3290 | 1864 | 2577 | 10.0 |
| Aug | 3493 | 1966 | 2679 | 10.1 |
| Sep | 3697 | 2170 | 2883 | 80.3 |
| Oct | 3696 | 2373 | 2985 | 642.5 |
| Nov | 3391 | 2272 | 2781 | 1405.5 |
| Dec | 3289 | 2271 | 2780 | 1546.1 |
| Year | 3697 | 1864 | 2780 | 89235 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 71% | 67% | 6.2 | 12:46 |
| Feb | 73% | 66% | 6.0 | 12:30 |
| Mar | 74% | 66% | 5.8 | 12:12 |
| Apr | 69% | 52% | 5.6 | 11:51 |
| May | 58% | 39% | 5.2 | 11:34 |
| Jun | 51% | 23% | 5.2 | 11:25 |
| Jul | 47% | 17% | 5.5 | 11:28 |
| Aug | 42% | 20% | 6.1 | 11:43 |
| Sep | 38% | 28% | 6.6 | 12:03 |
| Oct | 47% | 53% | 6.3 | 12:24 |
| Nov | 64% | 70% | 5.8 | 12:42 |
| Dec | 69% | 67% | 6.1 | 12:50 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Barreiras is like
The warmest month is October, with an average high of 36 °C96 °F and a low of 23 °C73 °F. The coldest is July, when highs average 32 °C90 °F and lows 18 °C64 °F. Seasonal differences are small — just 4.2 °C7.6 °F between the warmest and the coolest month.
Annual precipitation is moderate at about 892 mm35 in. The wettest three-month stretch is November–January, which brings 51% of the annual total. Months with less than 20 mm0.8 in on average: May–September. The wettest month is January (160 mm6.3 in), the driest is July (1 mm0.0 in).
Relative humidity ranges from 38% in September to 74% in March. The clearest skies (lowest average cloud amount, 17%) are typical of July. Average wind speed near the ground ranges from 5 km/h (3 mph) in March to 10 km/h (6 mph) in September. Daylight lasts from about 11.4 hours in June to 12.8 hours in December.
Best time to visit Barreiras
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–July. Average highs then reach 32 °C89 °F to 33 °C91 °F. Precipitation is 1 mm0.0 in to 75 mm2.9 in per month.
The most challenging month is November, which is hot, with average highs of 33 °C91 °F.
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Barreiras
- Wetter months (November–April) — highs 3188 to 33 °C91 °F, lows 2170 to 22 °C72 °F, about 133 mm5.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Drier months (May–October) — highs 3290 to 36 °C97 °F, lows 1864 to 23 °C73 °F, about 16 mm0.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Barreiras compares
World Climates covers 223 places in Brazil. By annual mean temperature, Barreiras is the 39th warmest of them. By annual precipitation, it is the 215th wettest. See all of them on the Brazil climate page.
Some places in other countries have a very similar pattern of temperature and rainfall (with seasons shifted for the other hemisphere). The closest matches are Jalingo (Nigeria, Aw), Minna (Nigeria, Aw) and Bida (Nigeria, Aw).
Nearby places
- Climate in Luis Eduardo Magalhães 87 km · 24 °C76 °F · 1,044 mm41 in
- Climate in Palmas 426 km · 27 °C80 °F · 1,510 mm59 in
- Climate in Planaltina 480 km · 22 °C71 °F · 1,219 mm48 in
- Climate in Brasília 513 km · 21 °C70 °F · 1,303 mm51 in
- Climate in Montes Claros 524 km · 24 °C75 °F · 865 mm34 in
- Climate in Balsas 526 km · 28 °C82 °F · 1,207 mm48 in
- Climate in Ceilândia 529 km · 21 °C70 °F · 1,303 mm51 in
- Climate in Vitória da Conquista 541 km · 21 °C70 °F · 761 mm30 in
Frequently asked questions
What is the warmest month in Barreiras?
October is the warmest month in Barreiras. Its average high is 36 °C (96 °F) and its average low is 23 °C (73 °F).
What is the coldest month in Barreiras?
July is the coldest month. Its average high is 32 °C (90 °F) and its average low is 18 °C (64 °F).
When does it rain the most in Barreiras?
January is the wettest month with about 160 mm (6.3 in) of precipitation. July is the driest with about 1 mm (0.0 in).
What is the best time to visit Barreiras?
Judging by long-term averages, the most comfortable months are April–July.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 615 m, while Barreiras lies at about 472 m. Temperatures on this page were therefore adjusted by +0.9 °C1.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.