March, April, November and December bring the most comfortable weather, with warm days, cooler evenings and calm, clear seas that are excellent for diving and snorkeling. Winter (December to February) is mild and sunny by day but can feel cool after sunset, so pack a light layer. Summer (June to September) is very hot, often into the low-to-mid 40s Celsius by day, though the sea stays warm and diving continues year-round; plan around the midday heat and stay hydrated.
Sharm el-Sheikh has a desert climate with strong sun almost every day of the year and little natural shade at the beach or on excursions. Use high-factor sunscreen, wear a hat, and drink more water than feels necessary, especially between June and September.
Diving and snorkeling standards vary between operators, and equipment on cheaper boats isn't always well maintained. Book only with PADI- or SSI-affiliated dive centers, check your insurance covers diving, and never dive beyond your certification level.
The reefs are beautiful but sharp, and stepping on coral, sea urchins or the occasional stonefish can cause painful injuries. Wear water shoes when wading, never touch or stand on coral, and keep a respectful distance from marine life you don't recognize.
Desert safari routes cross unlit roads and rough tracks after dark. Book quad bike and jeep excursions with a licensed operator who provides a safety briefing, helmets and well-maintained vehicles, and follow the guide's route closely.