After it rains we have noticed that the rear passenger side floor well gets very wet, sometimes standing water. What could cause this?

Question edited for clarity, add maker.
Question moved to model category.

Based on our research the RAV4s with wet floors are usually, but not always, clogged sunroof drains or drain outlets. Other RAV4 owners found that the body trim surrounding their windshield or even the fender panel had degraded and failed, allowing water to seep in during heavy rain.
Aug 12, 2015

If the passenger floor of your RAV4 is wet - here is the fix

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Wet Passenger Floor

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Sep 26, 2015 - After a few years, some foam will start to stiffen up and allowing water to seep past them allowing the water to pool around the opening.

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Don A has an excellent answer, but if you have a sunroof, that is more likely the reason. The pipe runs down between the door pillar and the windshield and there is often a join there which can part. Be careful with compressed air as it can blow joints apart.

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My 2022 Nissan Sentra is leaking water into the front

JustAnswer https://www.justanswer.com > Nissan Repair
May 28, 2023 - I noticed water leakage about 1 month after I purchased the car. It had rained and there was puddle on the carpet and weather mat on the front ...

1 answer · Top answer: Hello and welcome to JustAnswer! Thank you for choosing us to answer your

Have you checked the rubber door seals for ingress?

It sounds like the door seal or window. To be sure, if u want to, get in the car, close the doors & windows & have someone spray the car w a hose. Good luck. Check all the seals first.

Usually if the drain tube for the AC is plugged the front passenger floor gets wet, not the rear.

I am guessing that you recently had a windshield replaced. If so they didn't seal it well and it leaks in there. You can go to a glass shop and have it re-sealed or you can buy sealer at most automotive stores and do it yourself.

The other option is that it is leaking in through the air intake between your hood and the windshield. That is the air intake for your heating and air conditioning. There are drains in the line that can get clogged up. If that is the case the best option is to take it to a repair shop.

Question:Are you running your heater? If yes, your heater core is leaking. Its located behind the dash on the passenger side. Sorry to say, change it. You can do this yourself. Just a tight space to work, and hard on your patience.

Sounds to me like your issue is with condensation from your air conditioner. The condensation isn't properly draining, probably from a damaged or clogged drain hose.

Is it possible the water is actually coming from the A/C evaporator case, whose DRAIN IS CLOGGED ? The water produced by the A/C then leaks out of the case, down under the carpeting, then depending how vehicle is parked, can flow to the rear floors and carpet. Hope this helps