Another double dose of weather related paraphilias for you today.
Ombrophilia is sexual arousal from rain.
Pluviophilia is sexual arousal from being rained upon.
This "Is it normal to have a rain fetish?" submission on Is It Normal is an example of Ombrophilia rather than Pluviophilia, as the writer specifically makes the distinction of being aroused by the fact that it's raining, and not being aroused by being rained upon:
"I wouldn't really know if this is considered a fetish or not, but rain really turns me on. The cloudy weather or late night rain makes me really horny. I can be in my room all alone and bored and just the fact that it's raining really excites me. It's not to go outside and have sex while rain is pouring on you, it's to have sex while it rains. This thought is really sexy to me, and I really want to try it. I've been told this is a fetish, but I don't see it that way. Do you think it's a 'rain fetish'? Does anybody else feel this way?"