I have a Cateye brand light mounted on my handlebars, an energizer headlamp strapped to my pumpkin-head, and a rear blinkie.

With the inevitable summer Florida rains, [sometimes heavy] can anybody offer any tips on whether these lights will hold up in the rain? Or should I cover them with plastic baggies? Or should I pocket them during the heavy rains and just ride with reckless and free abandon into the darkness?

Most of my [night-time] ten mile commute is on a bike trail that sometimes is quite dark and in some places is covered by over-hanging tree limbs; but generally it is in good paved condition.

Will rain ruin the lights? Thanks.

If a light can't withstand rain, it is a poor light. I know that doesn't answer your question but it is something to consider when purchasing lights.

I will pass along one hard earned tip about riding in the rain when it's dark, you can't judge the depth of water, it could be 1/4" deep or it could be hiding a 2' pot hole.

I've never had problems with rain on any of my lights. For peace of mind, you could check the instructions.

I'd have confidence in the cateye, but the energizer hmmm not sure. I run with a dinotte front and back with no problems so far in lots of rain. I also have used a planet bike super flash in back as a back up to the dinotte, I have had a couple of the super flash lights fail due to I believe rain. However the super flash is supper affordable so I continue to use them. On my helmet I use a Princeton Tec EOS, which I like very much, and again no problems with it.

While I can't comment on your particular lights in your particular climate, I would suggest at least a 2nd rear light for just-in-case scenarios.

If you've been using them fine so far, I wouldn't worry about them. I think my concern would be humidity, but I don't live in Florida.

I run a Front Hub Dynamo, for reliable lighting , year around.
no dead battery issues..

decent lights , should have the edges join to keep the wet out,
perhaps make a Gasket to go in-between, part of the product.

Depending on how powerful they are, using them in the rain may be useless. But as another said, the Cateye should be good. Don't know about the others.