Can you still tan or get sunburned under a beach umbrella or in the shade in Turkey?

You can still tan on a pier under an umbrella: even if you stay mostly in the shade, swimming and snorkeling increase sun exposure because sunlight reflects off the water.

Poolside or beach umbrellas do not provide full protection: shade reduces direct sun but does not block scattered UV. That is why travelers still use professional SPF 50+ throughout the day even while staying under an umbrella.

If you plan to sunbathe intentionally in Turkey, it can be quite harsh because the sun is very strong. A safer approach is to stay under an umbrella and swim regularly, since you may still tan gradually without lying in direct sun.