Are debit cards and credit cards rainproof?

Answers:
Yes they are .. I once took my credit cards and debit card scuba diving give or take a few 60 foot down and stills works after 1.5 hour below wet.

I believe so, I hold put mine through the bath on misfortune copious times. They still work!!

Debit and credit cards are both made of plastics, so yes plastic is impermeable. Does that answer your ask?
Thanx for the points.