USD to BRL in August 2026: high, low, average
Updated September 26, 2026
One US dollar bought 5.1481 Brazilian reais on average in August 2026. The dollar started the month at its low, 5.0675 on August 3, reached a high of 5.2102 on August 17 and closed at 5.1718. Over the month it gained 2.06% against the real. The figures are cross rates derived from 21 European Central Bank reference fixings.
A volatile month
The Brazilian real is one of the more active currencies on this site, and August showed why. The range between the low and the high was 2.82%. The largest daily move was a rise of 1% on August 12, to 5.1557. The dollar rose on 11 fixings and fell on 10, so the direction changed often even though the month ended higher.
USD/BRL day by day
| Date | BRL per 1 USD | Versus previous fixing |
|---|---|---|
| August 3 | 5.0675 | up |
| August 4 | 5.0806 | up |
| August 5 | 5.1153 | up |
| August 6 | 5.1237 | up |
| August 7 | 5.0998 | down |
| August 10 | 5.0856 | down |
| August 11 | 5.1049 | up |
| August 12 | 5.1557 | up |
| August 13 | 5.1811 | up |
| August 14 | 5.1762 | down |
| August 17 | 5.2102 | up |
| August 18 | 5.2074 | down |
| August 19 | 5.2041 | down |
| August 20 | 5.1936 | down |
| August 21 | 5.1729 | down |
| August 24 | 5.1499 | down |
| August 25 | 5.158 | up |
| August 26 | 5.1465 | down |
| August 27 | 5.142 | down |
| August 28 | 5.1641 | up |
| August 31 | 5.1718 | up |
August in context
| Month | Average USD/BRL |
|---|---|
| August 2025 | 5.4544 |
| July 2026 | 5.1193 |
| August 2026 | 5.1481 |
The real was slightly weaker than in July: the August average was 0.56% higher. Against August 2025 the real was much stronger, with the average 5.61% lower than a year earlier.
Who wins and who loses when USD/BRL rises
- Brazilian travellers abroad pay more reais for each dollar when the rate goes up. In August the cheapest day to buy dollars was August 3.
- Brazilian exporters paid in dollars receive more reais. For them the high of August 17 was the best reference day.
- Foreign companies paying salaries or suppliers in Brazil need fewer dollars for the same payroll in reais when the rate is high.
At the monthly average, one real was worth 0.19426 dollars.
Year-on-year: the bigger picture
For someone who last looked at this rate a year ago, the change is significant. A dollar bought 5.4544 reais on average in August 2025 and 5.1481 in August 2026. Budgets, price lists and contracts based on last year's rate will be off by several percent.
The official rate in Brazil
The Central Bank of Brazil publishes its own reference rate, known as PTAX, which Brazilian contracts and tax rules often require. The ECB-based rate here is an international benchmark for comparison. It is useful for checking bank and card rates and for records kept outside Brazil.
How to use the daily table
Pick the row for the day of your transaction and compare it with the rate on your bank or card statement. The difference, as a share of the reference rate, is what the conversion cost you on top of the market. With a currency that moves by a full percent in a day, as the real did on August 12, make sure you compare against the same day, because the day before or after can be far away.
What to do
- Look up the rate of your payment date on the USD/BRL daily rates for August 2026 page.
- Open USD/BRL on the high day of the month to see the August 17 fixing.
- If your contract refers to PTAX, use it for settlement and the ECB-based rate for comparison.
- See USD/BRL in 2026 for the months before August.
- Check the USD to BRL exchange rate today and use the 100 USD to BRL converter for quick estimates.
Questions and answers
What was the average USD to BRL rate in August 2026?
The dollar averaged 5.1481 reais in August 2026, based on 21 ECB cross rates.
What was the highest dollar to real rate in August 2026?
The highest fixing was 5.2102 reais on August 17, 2026. The lowest was 5.0675 on August 3.
Is the real stronger than a year ago?
Yes. The August 2026 average of 5.1481 was 5.61% below the August 2025 average of 5.4544.