The average forecast among analysts was for French inflation to be 3.2 percent in September, according to Bloomberg.
Later on Wednesday, preliminary inflation figures for September are also expected from Italy and Germany.
On Tuesday, unexpectedly high Spanish inflation figures for September were reported, and on Friday, a first estimate of inflation across the eurozone will be released.
Inflation in the major euro countries is crucial data ahead of upcoming interest-rate decisions from the European Central Bank (ECB), which in turn affects the Swedish Central Bank's interest-rate policy and thus the interest rates Swedish households and companies must pay.
