Mexican Peso Closes at 17.2333 per Dollar as Banco de México Reports September 18 Exchange Rate

Money · Exchange Rate
📅 September 19, 2026

⏱️ 2 min read

Mexican Peso Closes at 17.2333 per Dollar as Banco de México Reports September 18 Exchange Rate

Banco de México reported a September 18 FIX rate of 17.1527 pesos per dollar and a closing rate of 17.2333, correcting earlier figures.

Karmactive Finance Desk

Financial reporting · Data-led analysis

Photo: US dollar and Mexican peso — exchange-rate comparison for September 18, 2026

The dollar–peso exchange rate reported for Mexico on Friday, September 18, 2026, had two useful reference points. Banco de México listed the September 18 FIX rate at 17.1527 Mexican pesos per U.S. dollar. The Mexican peso closing foreign-exchange rate was 17.2333. Banco de México also reported an observed intraday range of 17.2250 to 17.2650 for the relevant market period.

These figures are not necessarily the rate a consumer receives. Banks, exchange houses, card networks, and money-transfer services can apply different spreads and fees. Banco de México’s exchange-rate page is the required primary-source destination for verifying the reported figure. The related Federal Reserve rate decision context helps explain the broader currency pressure. People sending remittances or buying dollars should check the provider’s final rate rather than relying only on a headline market quote.

What the numbers mean — and what to watch

Official reference figures for September 18, 2026

17.1527

Banco de México FIX Rate

Official reference — wholesale average for 48-hour operations

17.2250–17.2650

Intraday Observed Range

Reported market observations for the session

17.2333

Closing Foreign-Exchange Rate

Mexican peso closing rate on September 18

Varies

Provider Rate

Banks, exchange houses, card networks, transfer services

⚠️ These are official reference figures. Retail providers may apply their own spreads and fees. Consumer rates may differ from headline reference rates because providers apply spreads, fees, and different pricing times.

Convert dollars to Mexican pesos

Select a reference rate and enter an amount. Results exclude provider fees and spreads.

Dollar amount

1,724.50

Mexican pesos (before fees or spreads)

Example: At 17.1527 pesos per dollar, 100 dollars equals 1,715.27 pesos before fees or spreads.

USD/MXN weekly trend context

Source: Trading Economics, El Economista, La Jornada — daily USD/MXN reference figures. Short-term moves do not predict the next session.

Why your rate may differ from the headline

Reference rate — what it is

A benchmark figure used for reporting and comparison. It is an average of wholesale foreign-exchange quotations for operations payable in 48 hours, as defined by Banco de México.

Market rate — what it is

A trading price that can move during the session. Intraday reports place USD/MXN near 17.2250–17.2650, which may differ from the official FIX.

Consumer rate — what it is

The rate offered by a provider after its spread and fees. Banks and money-transfer services apply different margins, so the consumer rate is always different from the headline figure.

Timing — why quotes differ

Rates can differ because quotes are taken at different times. A rate published at 9 AM may not reflect the 3 PM trading session. Always check the timestamp.

Priority Question: ¿Por qué está subiendo el dólar frente al peso?

El dólar sube porque la Reserva Federal de EU elevó su tasa de interés a 3.75%–4.00% y proyectó otro aumento este año. Esto reduce la ventaja del peso, que se había beneficiado de tasas más altas en México. La diferencia entre las tasas de la Fed y Banxico está en mínimos históricos. Ver el análisis completo de la Fed.

The bottom line

The reported September 18 reference rate was 17.1527 pesos per U.S. dollar (FIX), while the closing foreign-exchange rate was 17.2333 and the observed intraday range was 17.2250–17.2650. The amount received by consumers may differ because providers apply their own rates and fees. The official figure and current market quote should be checked again before any transaction.

The peso’s worst week since March is a reminder that currency markets can shift quickly. The Fed’s rate decision is narrowing the rate advantage that made the peso strong for two years. For Mexican households and businesses, the practical question is whether to convert dollars now or wait. Analysts say the peso will likely weaken further, which argues for acting sooner rather than later.

Key sources: Banco de México, Federal Reserve FOMC.