Beach
Sharm al-Luli
Red Sea Governorate, Egypt · sea 29.9 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
bay and beach south of Marsa Alam, Egypt
Wikipedia has no article about this beach yet. It is on the atlas from its Wikidata record and its photograph.
Questions
How warm is the sea at Sharm al-Luli?
The sea off Sharm al-Luli averages 29.9 °C at its warmest, in August, and 22.7 °C at its coolest. These are monthly means from NOAA's OISST v2.1 satellite and buoy record for 1991 to 2020, sampled at the beach's own coordinates.
When can you swim at Sharm al-Luli?
The sea reaches 20 °C or more from All year. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Sharm al-Luli?
Sharm al-Luli is on the coast of Red Sea Governorate, Egypt, at 24.6131, 35.1175. The map on this site flies straight to it.