Yes ours does the same. It's strange how it happens only on the passenger side and not the drivers side dooralso!
I've checked the carpets for any water ingress and all seems ok, so I have not bothered to check this issue out. The other half has learned to side step the cupful of water when opening the door after rain.
I've never been a passenger in my car, and SWMBO has never mentioned this so I assume I do not have the problem. Looking around the passenger door if you follow the top of the sill to the front there appears to be a drainage slot where it meets the front wheel arch. There is a plastic cover just in front of the slot. The passenger side would go through more puddles in normal use. Are the slots and plastic arch deflector the same on both sides of your car. It could be the slot is blocked so it does not drain, or the deflector is askew and not stopping the ingress of water (or I could be talking rubbish).
could it be that the door inner seal ,the cellophane type one behind the door card ,has broken down?
ive had them split/puncture or not been replaced correctly. this has led to water collecting in the door and runs out when the door is opened.