Early-bird Christmas shoppers have been advised to hold their fire and wait until prices drop in the final weeks before December 25.
Analysis website mySupermarket.co.uk said the prices for some grocery products such as chocolates will tumble in the weeks before Christmas.
When comparing the prices of boxes of chocolates available in the past three Decembers with today's prices, mySupermarket claimed they were on average 45% more expensive, and Christmas puddings 8% more pricey.
The website is advising shoppers to put off buying some goods now and wait a few weeks for prices to fall at the start of December.
Jonny Steel, spokesperson for mySupermarket.co.uk said: 'It's good to be super-organised ahead of Christmas but often it's worth holding back on buying your Christmas treats until December.
"As early as September we've been teased with mince pies, Christmas puddings and sweets in supermarkets tempting us to stock up in advance, but as the research shows on average prices will drop in the coming months.
"Consumers are continuing to feel the pinch and might be cutting back for Christmas this year, especially as food inflation is predicted to rise again. So when purchasing treats for the family make sure you shop with your head and not your stomach."