Is there a problem with repackaging cat food in self-sealed bags in hot weather?

It's nothing serious, just make sure it's sealed. After all, it is dry food. Just keep it in a cool and dry place and avoid the sun. My cat food is packed in a previously eaten Champions League cat food bag, and the sealing strip is very easy to use, even without putting it in the refrigerator. If you are worried, you can buy a smaller bag and eat it early.