Rain causing car not to start?

relay
#1

My 1993 Honda Civic is having issues starting after a night of rain. When this happened a month ago we tested the battery, which was fine, and ended up having it towed. After putting in a new relay assembly and coil assembly everything was fine… until this morning. Again, it doesn’t sound like the battery is dead, and again it’s been after a long night of rain. Any ideas?

#2

Do you mean that it won’t turn over?

Or, will it turn over and just never start? (Try new spark plug wires if this is the case)

#3

Spark plug wires is good, If it has a distributor a new cap and as long as you are in there a rotor would be a good idea.