im hoping someone can help.. it only happens when it rains but the floor in the front of the car gets a puddle and it happens everytime. Maybe its the door seal ? it happens even if i dont drive the car in the rain but never happens when i wash the car.

 

windshield seal, there's a few posts on it here pretty easy fix with rtv or silicone under a few bucks

 

There is a TSB about this somewhere. My car does this occasionally, just not motivated enough to fix it.

 

I just got the new seals for the doors today. Going to try that out

 

It's probably the windshield like tejas said.

 

Im going to do the windshield but it was just replaced like a year ago