The Indonesian rupiah strengthened to Rp18,063 per US dollar in Thursday morning trading, gaining five points or 0.03 percent from the previous close.
The move reflects a broader softening of the US dollar following the release of softer-than-expected US inflation data, which has reduced pressure on emerging market currencies.
The modest appreciation in Jakarta comes as global markets digest the latest US price figures, which have bolstered expectations for a more dovish Federal Reserve stance.
A weaker dollar typically provides relief to EM currencies that have faced headwinds from higher US interest rates and strong greenback demand.
This development mirrors trends seen across other Asian markets.
The Indian rupee recently posted its strongest weekly performance in 11 weeks, reaching 94.32 per dollar, driven by similar factors including falling crude oil prices and a retreating US dollar.