I have a 2013 honda accord ex-l v6 2dr coupe and today I notices some water residue in the drainage track underneathe the sunroof.

Is this normal or is there a problem with the seal?

I also noticed when the car sits in the hot sun, I can hear the gasket rubbing against the metal when I tilt the subnroof. I don't notice when the car is colder.

Thank you in advance

 

Does the water leak down inside the car?

After rain, it's not unusual for water in that tray, after all that's where the water goes to the drain hoses at the 4 corners. The weatherstripping around the glass isn't completely watertight.

For the rubbing sound, open the roof when you wax the car so you get some wax on the edge where that gasket rubs. And/or some rubber-conditioner dressing is usually a bit slippery too which improves it.