Soaked carpet after a rain

I can't for the life of me find why my carpet is always wet after a rain. I see some water around the sill carpet hold down. With new wind lace which I believe is installed correctly, leaks all the time. Anyone have any cures? Thanks.
So, it is usually either the windshield, the wiper pivot gaskets, or the firewall gaskets... Sometimes it can be from a couple other spots, but these are what u should check into first, and in that order...