Is it normal for tires to constantly deflate during the summer?

If someones letting them down then yes 😂😉

Just look for punctures or if the rubber is old and cracked or spray some soapy water around the rim and see if there's bubbles ie air escaping.

I'd think the opposite, that they would inflate from the heat. But what do I know.

One tire or all of them?
With heat they should gain psi.
Cool nights you'll lose or or two pounds.

Not at all.you must have a leak.or the bead that seals it is not holding anymore.

No. Better check if you ran over a nail or other sharp object.

No they deflate in cold weather

No. Have them checked.

yes if it was really hot and it gets really cool they definitely change their pressure I just had to deal with that this morning.. you did say tires like it's all of them correct?

No

no

No, it’s not. Usually that would mean there’s a hole or leak in a tire. Your tires might be melting.

I dunno