It is well known that the Greeks are excellent merchants. Many neighbor countries are coming to Greece because of shopping. For most of tourists, one vacation can not be finished without at least one day of shopping, especially if it is the period of sales. Many tourists are planning their vacation according to the dates of sales.
The minimum discount is 30%, but some things are even 70 to 80% discounted.

In general, the periods of sales are, more and less, the same every year and there are four in total, two summer and two winter. During those periods the shops are usually open even on Sunday.

Winter sales in shops, in Greece, always start the second week in January. They may start few days earlier or later.
The sale lasts till the end of February, so till 28th or 29th February.
Also, there is a short period of sale (10 days sale) which is always in the first 10 days in November, from 1st till 10th.

Winter sale 2018 starts on Monday, 8th January and it ends on Wednesday, 28th February. The next period of sales is already mentioned period of 10 days, from 1st till 10th November.

Winter sale 2019 starts on Monday, 14th January and it ends on Thursday, 28th February.
Winter sale 2020 starts on Monday, 13th January and it ends on Saturday, 28th February. Sale in November in 2019 and 2020 is from 1st till 10th November.

Summer sales are in May, July and August. The first period is always in the first 10 days of May, second one starts the second week of July and it lasts till the end of August. It can be remembered as the general rule which is always respected.

Concrete, the first summer period of sales 2018 starts on Tuesday, 1st May and it ends on Thursday 10th May. The second period starts on Monday, 9th July and it ends on Friday, 31st August. Very similar dates are also for 2019, the only difference is that the second summer period of sales starts 8th July, and 2020 it starts 13th July. The both end on 31st August.

On the very beginning of the sales there is the largest selection of clothes and footwear, while at the end is the smallest, but often the unsold clothes and footwear are additionally discounted in order to be sold. In that period usually only large numbers of clothes and footwear are left.

Also, it happens that some shops low the prices few days before the official beginning of sales. It can be followed on websites of some shops, especially if you already now what you want to buy.

In Greece a large selection of clothes and footwear with reasonable prices can be found even when there are no sales.

In the periods of sales, also the household equipment is discounted, not only clothes and footwear.

The working hours of shops in Greece you can check here.