The price of an ice cream doesn’t change much over the course of the year but hot weather makes ice cream more appealing and this is when demand is at its highest. The same rings true for property. Demand for your property will be highest when it is at its most appealing.
Buyers are looking for properties at all times of the year so if your property is warm and gets good winter sun, why not market it at a time when there is less competition? Alternately you might have a well-established garden that flourishes in spring so this will be the best time to market your home. Whatever the season, take the time to present your house well to maximise interest and achieve the best possible price.