I'd want to know more, usually outdoor cameras, or at least the better ones, have some sort of heater to help with condensation, and in your case, I'd be worried about humidity if it's not an outdoor rated camera. YMMV.
I probably sound like I'm talking myself into it (and I am...) but I'm wondering if the camera-generated heat is enough to keep condensation off of the camera as well. Even Panny's outdoor rated camera runs off of POE. I'm definitely no expert, but can you actually actively heat something from POE's small amount of power?
Also, How much of a problem IS condensation? The camera will be at the exact same ambient temperature as the outside surroundings. The only time I ever see condensation is on a humid day, when the surface of something is colder than the air temp like a cold drink, poor windows, etc... It's not like I ever go outside and see the bricks on my house or things in my yard dripping with condensation.