Mendoza Area @ Christmas - 24-26

Looks like the only time we can be in Mendoza is 24-26 of December. We'll likely go to Cacheuta on December 25. What will it be like on the afternoon/evening of the 24th? The evening of the 25th? All day (until 18:00) on the 26th?

We'd like to experience Mendoza but are worried it will mostly be closed.

Thanks