The high inflation was driven by over 9 per cent increase in housing and utilities sector within the Colombo Consumers Price Index which the analysts put down to the government's electricity tariff hike.
The domestic tariff hike triggered island-wide protests as opposition trade unions staged a token one-day strike last week.
The tariff hike came as the International Monetary Fund (IMF) admonished the government and asked it to cut down losses of state-owned enterprises (SoEs).
Against IMF opinion, the Central Bank eased its policy interest rates during the month which it said was aimed at invigorating growth.