The baht has already strengthened by 9 per cent since early this year as a result of the continued inflow of foreign capital, according to the Bank of Thailand (BoT).
BoT Assistant Governor Suchada Kirakul conceded the baht surged to second and third strongest among the countries in Asia.
However, it continued moving in concert with other currencies in the region.
She said foreign capital had flowed without interruption into Asian countries, including Thailand, as data on the United States economy indicated a picture of fragility in general, impacting consumer confidence.
Such figures made investors worry that the US government might adopt measures to inject further liquidity into the system.
Investors believed the Federal Reserve will continue with a low interest policy for the long term. (MCOT online news)