The price of the dollar in Mexico began trading Tuesday, September 16, at an official rate of $18.35 pesos per dollar, according to data from the Bank of Mexico (Banxico). This exchange rate is a key indicator for the country’s economy, as it reflects the stability of the national currency against other currencies, especially the US dollar. On average, the currency is quoted at $18.0456 MXN for sale in banking institutions, while the purchase price is $18.6296 MXN.
It is important to note that the exchange rate is very sensitive to external events. Global political and economic uncertainty, as well as trade tensions between major powers, can have a direct impact on the value of the Mexican peso. If you’re looking for the dollar’s current price in Mexico, you’ll find the updated exchange rate and bank quotes in this article.
Price of the dollar in Mexico today, September 16, 2025. Check how the currency is quoted against the Mexican peso at banks and exchange offices. | Credit: Reference image generated with Gemini AI
Price of the dollar in Mexico today, September 16, 2025. Check how the currency is quoted against the Mexican peso at banks and exchange offices. | Credit: Reference image generated with Gemini AI
Exchange Rate in Mexico — September 16, 2025
Official Rate
FIX exchange rate (Banxico/DOF): $18.47 MXN per US dollar.
Spot market: $18.3376 MXN per dollar in the early hours of the day, with a previous close of $18.475700 MXN. Another average recorded was between $18.35 and $18.42 MXN.
Therefore, the dollar is bought within an approximate range of ~18.0456 MXN and sold within a range of ~18.6296 MXN, depending on the bank. These values may vary slightly throughout the day due to internal adjustments and schedules at each institution. The ranges reflect slight differences in schedules and internal bank policies.
It is important to keep in mind that the FIX exchange rate is a crucial tool for the Mexican financial market, as it determines the official value of the peso against the US dollar. This value is calculated by the Bank of Mexico (Banxico) based on a weighted average of wholesale transaction quotes. This process ensures that the exchange rate is representative of actual market transactions, guaranteeing transparency and stability for businesses and individuals who operate foreign currency.
The FIX is determined every banking business day starting at 12:00 PM and is officially published in the Official Gazette of the Federation (DOF) the following day. This data is vital, as it is used to settle obligations and contracts denominated in dollars that will be settled in Mexico. Thanks to this mechanism, both companies and individuals can plan and execute international transactions with a clear and regulated reference.
What US economic data influenced the trend of the Mexican peso today?
The US economic data that influenced the trend of the Mexican peso today, Tuesday, September 16, 2025, are primarily the consumer inflation figures (Consumer Price Index, CPI) for the month of August:
The CPI rose 0.2% monthly and 2.7% annually, equal to the previous month’s figure and below analysts’ expectations (2.8% annually was the consensus). Core inflation (excluding food and energy) rose 0.3% monthly and 3.1% annually, reflecting a rebound in services and housing.
These data reinforced expectations of a possible interest rate cut by the Federal Reserve (Fed) in September. Traders bet that the Fed will take action against moderate inflation, which weakened the dollar and favored the Mexican peso with an appreciation during the session.
In addition, attention was paid to the extension of US tariffs on China and the packed agenda of other indicators that could influence the Fed’s future decisions, such as wholesale inflation, retail sales, and consumer confidence, although those data have not yet been released today.
Furthermore, the beginning of September was marked by low trading volume due to the Labor Day holiday in the US, which amplified exchange rate movements in Mexico.
Markets also focused on the agenda of pending US economic reports, such as retail sales and employment figures, in addition to the uncertain environment generated by trade and political disputes.
In summary, the appreciation of the Mexican peso was primarily due to lower-than-anticipated inflation in the U.S., fueling expectations of less restrictive monetary policy from the Fed and weakening the dollar in international markets today.
What was the closing price of the dollar in Mexico on September 15?
The closing price of the dollar in Mexico on Friday, September 12, 2025, was 18.3376 pesos per dollar, according to average bank data and the interbank register announced by the Bank of Mexico (Banxico) and specialized media. This value represents the weighted average with which transactions were settled at the end of the exchange trading day.
It is also reported that the official FIX exchange rate for settling dollar-denominated obligations, published in the Official Gazette of the Federation (DOF), was 18.475700 pesos per dollar for that same day.
US dollar bills next to the Mexican peso, illustrating the exchange rate for September 16, 2025, in Mexico. This shows the current USD to MXN exchange rate. | Credit: Reference image generated with Gemini AI
US dollar bills next to the Mexican peso, illustrating the exchange rate for September 16, 2025, in Mexico. This shows the current USD to MXN exchange rate. | Credit: Reference image generated with Gemini AI
What is the difference between the Banco de México exchange rate and the market price?
The main difference between the Banco de México (Banxico) exchange rate and the market price is the way they are calculated and used:
Banxico Exchange Rate (FIX):
This is a reference rate that the Bank of Mexico determines and publishes daily, usually around midday.
It is calculated from a weighted average of quotes collected from the wholesale exchange market during three specific periods in the morning, considering transactions that reflect prevailing market conditions.
The FIX is used to settle payment obligations in foreign currency, banking transactions, contracts, and settlements, and is the official reference rate for invoicing and institutional transactions.
It remains fixed until the next business day, so it is not updated in real time, and is generally more stable.
Market price (spot, bank, or window exchange rate):
This is the actual price at which dollars are bought and sold in banks, exchange houses, or financial platforms, and may differ between institutions.
This price varies constantly throughout the day depending on supply and demand, economic expectations, monetary policy, news, and international factors.
It’s usually a little higher for the public because it includes commissions, profit margins, operating costs, and risk. That’s why it’s higher than the FIX at the teller window, and each bank offers different buy and sell prices.
Therefore, when you check a bank rate, there’s usually a difference of a few cents (sometimes more) compared to the FIX value. The FIX helps bring order and transparency to the Mexican market, but it doesn’t determine the final price of each individual transaction.
How does US inflation affect the Mexican peso’s price today?
US inflation directly influences the trend of the Mexican peso today, Tuesday, September 16, 2025, changing market expectations about the Federal Reserve’s (Fed) monetary policy and the behavior of the dollar:
US inflation directly affects the Mexican peso’s price, especially on days like today. If US inflation turns out to be lower than expected, as it was today, it raises expectations that the Federal Reserve (Fed) could cut interest rates or not raise them in the near future. This weakens the dollar against other currencies and generally strengthens the Mexican peso.
Thus, low inflation in the US today is driving the strength of the Mexican peso, as it reduces global demand for dollars and increases pressure on US authorities to avoid tightening monetary policy. This causes the dollar’s exchange rate to trend downward against the Mexican peso during the day.
Source: elcomercio
