Charging in the rain is perfectly safe
The EVSE never has any power coming from it until *after* it communicates with the car to determine that everything is ready for charging to begin - Anytime you have the plug in your hand, there is no voltage or current present . . . . you'll never shock yourself handling a wet EVSE plug. Keep the cover on it when not in use, and don't open the inside protective cap on the car socket until you're ready to plug it in. Keeping both those as dry as possible is a good idea, but don't worry about getting shocked standing in a puddle of water - That won't happen
This is one of the many things the J-1772 protocol had to address - Recharging must be 'idiot-proof' or someone, somewhere could get hurt which would give all EV's a bad name, so . . . . they're definitely smarter than their owners :lol:
Don