The only one I'm even tempted to think might be too young is the Syrah, but even then it's almost 6 years old. It would depend mostly on the winemaker's intentions with it, and how they made it.

I'd assume, without knowing much about the winemaker or their style, that the Grenache is good to go now. The tempranillo should be right around that point too.

That said, unless you can store them properly, you're better off drinking them all now rather than store them in bad conditions. If you open a bottle too young, you can adjust for that with a long decant. You can't, however, fix improper storage.

If you really want to find out, email the winery. They know their wines and can advise you better than this sub.

When you do open them, why don't you come back and tell us how they taste! That's a lot more fun for this sub.