Sea breeze removes the warning signal. Most bad burns here happen on a boat.
Hurghada sits at roughly 27° north, the UV index runs to 11 or 12 through the summer, and there is almost no cloud. That combination burns unprotected skin in well under twenty minutes.

The specific trap is the boat. A steady breeze on deck removes the feeling of heat that normally tells you to move into shade, and the water reflects a second dose upwards. People who would never lie on a beach for four hours will sit on a deck for four hours without noticing.
A routine that works: a rash vest instead of relying on cream for your back and shoulders, factor 50 on everything else applied before you leave rather than on board, reapplied after every swim, and a hat with a brim that survives wind. The backs of the knees, the tops of the feet and the ears are where people get caught.


A steady breeze on deck removes the feeling of heat that normally tells you to move into shade, and the water reflects a second dose upwards.
Use mineral sunscreen — zinc or titanium — rather than chemical filters. Oxybenzone and octinoxate damage coral, and several marine parks in the region have moved to restrict them. It is the same protection with less collateral.

