In English the article "the" is not needed (vară) but in Romanian you have to add it "the summer" (vara).

On my android it sounds as though she is saying A vară

why does not accept both vara and vară?

Because it is litle diferent a and ă it is not the same thing

Because in English the article is not needed "Summer vară" but in Romanian the article is compulsary "the" summer = vara

Why not a season of the year?