The economic climate indicator, which measures business confidence, stood at plus 0.7 in September, unchanged from August, the National Statistics Institute (INE) said on Monday. It has been rising since January 2013.
INE said its consumer confidence indicator rose to a negative reading of 24.6 in September, from minus 25.5 in August.
The indices started rebounding at the start of 2013, when Portugal began to recover from its debt crisis which led to the worst economic slump since the 1970s. This year, the economy is expected to grow for the first time since 2010.