China's consumer price index (CPI), the main gauge of inflation, will rise 3.8 percent in the fourth quarter, the State Information Center (SIC) forecast Friday.

In a report in China Securities Journal, the SIC, a National Development and Reform Commission (NDRC) think tank, said the whole-year CPI is likely to slightly exceed the government's target of 3 percent, but still "within tolerance of the society".

"The steep rise in the prices of edible oil, sugar and cotton are the major impetus behind the higher figure," the report said.

The report noted "imported inflation will exacerbate", as the weakening U.S. dollar, a result of the second round of quantitative easing monetary policy of the Federal Reserve, will push up prices of major commodities like gold, non-ferrous metal and crude oil.

In addition, the government's measure to save energy and cut emission will also increase the price of water, natural gas and refined oil. Higher labor costs will also play a part in price rise, it said.

China's CPI soared to a 25-month high of 4.4 percent year on year in October, said the National Bureau of Statistics earlier this month.

China's State Council Wednesday announced price control guidelines to reassure consumers facing rising inflation and urged local authorities to offer temporary subsidies to needy families.

To tame mounting inflation pressure, China's central bank raised benchmark interest rates last month and ordered banks to set aside more reserves Wednesday in its latest effort to rein in liquidity.

The SIC also urged authorities to shift its monetary policy from relatively easy to prudent while taking measures to rein in inflation.