This took annual inflation to 0.6 percent in January, after 0.9 percent in December.
While prices for clothing, footwear, recreation and culture fell, the downward pressure on inflation from those items was partly offset by slightly higher prices for food, insurance and housing.
A new congestion charge for motorists in Stockholm added to inflationary pressures in the month with about 0.05 percentage points.
When calculated according to a harmonized European index, Swedish prices fell by 0.7 percent in January from December and rose by 1.1 percent from January 2005.
The Swedish central bank, the Riksbank, has an annual inflation target of 2.0 percent.