© Reuters.

Investing.com– Most Asian currencies fell on Tuesday as traders remained on edge before a Federal Reserve meeting this week, while the Japanese yen (USDJPY) weakened sharply after a historic rate hike by the Bank of Japan.

The dollar firmed in Asian trade, seeing more inflows as uncertainty before the Fed and somewhat dovish signals from the BOJ kept markets biased largely towards the greenback.

BOJ hikes rates, but USDJPY surges on accommodative outlook 

The yen weakened sharply after the BOJ’s first rate hike in 17 years, with the pair surging as far as 150. 

The BOJ by 0.1%, bringing them to neutral territory after nearly a decade of negative rates. The bank also signaled an end to its yield curve control and asset purchase policies.

But the central bank also said that uncertainty over the Japanese economy will keep for the “time being.” Its rate hike on Tuesday, while historic, also marks only a marginal move away from its ultra-dovish stance.

This notion dented the yen, as the main point of pressure on the Japanese currency- high U.S. interest rates- remained unchanged. 

AUDUSD sinks on less hawkish RBA 

The Australian dollar also retreated on Tuesday, with the pair falling 0.4% after the Reserve Bank of Australia , but struck a less hawkish tone than markets were expecting.

The RBA did not offer an explicit warning that interest rates could rise higher to combat sticky inflation, and instead offered largely vague cues on monetary policy remaining tight to offset high price pressures. 

Dollar near two-week high before Fed meeting

The and rose about 0.2% in Asian trade, hitting a near two-week high in anticipation of a Fed decision on Wednesday. 

While the central bank is widely expected to keep interest rates steady, traders were on guard over a more hawkish than feared stance, especially following hotter-than-expected inflation readings for the past two months. 

Fears of the Fed kept most other Asian currencies trading weaker on Tuesday. The rate-sensitive South Korean won’s pair rose 0.1%, as did the Singapore dollar’s pair. 

The Indian rupee was flat, but the pair was seen creeping closer to the 83 level, which puts the rupee in sight of record lows. 

The Chinese yuan’s onshore pair traded sideways, but remained in sight of the 7.2 level following middling readings on the Chinese economy. The offshore yuan’s pair traded well above the 7.2 level, indicating negative sentiment towards the Chinese currency.