The USD/JPY exchange rate fell to 149.5500 on September 26, 2025, down 0.22% from the previous session. Over the past month, the Japanese Yen has weakened 1.50%, and is down by 5.17% over the last 12 months. Japanese Yen - values, historical data, forecasts and news - updated on September of 2025.

View market daily updates and historical trends for US Dollar to Japanese Yen Exchange Rate. Source: European Central Bank. Track economic data with YChar…

The amount of Japanese yen that could be bought with USD kept increasing since September 2020. As of September 12, 2025, the exchange rate reached approximately 147.22 Japanese yen. The average (standardized) measure is based on the calculation of many observations throughout the period in question. It is therefore different from an annual measure at a point, which reflects concrete values as of the end of the year.

A graphic that displays the dollar performance against other currencies reveals that economic developments had mixed results on currency exchanges. The third quarter of 2023 marked a period of disinflation in the euro area, while China's projected growth was projected to go up. The United States economy was said to have a relatively strong performance in Q3 2023, although growing capital market interest rate and the resumption of student loan repayments might dampen this growth at the end of 2023. A relatively weak Japanese yen Q3 2023 saw pressure from investors towards Japanese authorities on how they would respond to the situation surrounding the Japanese yen. The USD/JPY rate was close to ***, whereas analysts suspected it should be around ** given the country's purchase power parity. The main reason for this disparity is said to be the differences in central bank interest rates between the United States, the euro area, and Japan. Any future aggressive changes from, especially the U.S. Fed might lower those differences. Financial markets responded somewhat disappoint when Japan did not announce major plans to tackle the situation. Potential rent decreases in 2024 Central bank rates peak in 2023, although it is expected that some of these will decline in early 2024. That said, analysts expect overall policies will remain restrictive. For example, the Bank of England's interest rate remained unchanged at **** percent in Q3 2023. It is believed the United Kingdom's central bank will ease its interest rate in 2024 but less than either the U.S. Fed or the European Central Bank. This should be a positive development for the pound compared to either the euro or the dollar.

Inflation rates in the Association of Southeast Asian Nations (ASEAN) ranged from ** percent inflation in Myanmar to **** percent inflation in Thailand in 2025. Only a few countries are in the 2 to 6 percent range that many economists view as optimal for emerging economies. Effects of high inflation High inflation is generally detrimental to the economy. Prices tend to rise faster than wages, meaning that people and firms have less purchasing power. This in turn leads to slower growth in the gross domestic product (GDP). It also leads to a weaker currency. For countries with a positive trade balance this can be beneficial, because exports are relatively cheaper to foreign buyers. Through the same mechanism, net importers suffer from a weaker currency. Additionally, inflation makes a country’s national debt less expensive if the debt is denominated in the local currency. However, most of this debt is in U.S. dollars, so inflation makes the debt more difficult to service and repay. Risks of deflation With deflation, consumers and firms delay investments because they expect prices to be lower in the future. This slows consumption and investment, two major components of GDP growth. The most common example of this is Japan, where the GDP growth rate has been low for a long time due, in large part, to deflation. For this reason, countries like Brunei would rather see low and stable inflation than slight deflation.