Is it common to experience more hair loss during the summer?

This summer, my hair has been falling out a lot more than usual, but I don't know the exact reason... I did go for a walk in the strong sunlight this time, but could that be related? I tend to be sensitive to the heat, it was really hot. I don't think my scalp and hair condition are in bad shape this summer~ I think my long hair makes it look like I'm losing more hair, but I heard this amount is normal, so I was relieved. However, lately, I've been noticing more hair clumps in the drain filter after showering than beforeㅠㅠ

Is this related to the season or just because my scalp is not in good condition right now? Where can I get this checked?