Red Sea water temperature in Egypt, month by month

Short answer: The Red Sea off Egypt is swimmable all year. On average the water is coolest in February and March, at about 22°C, and warmest in August, at about 28°C in Sharm El Sheikh and Hurghada and 29°C in Marsa Alam.

Average sea temperature by month (°C)

These are long-term averages. The water on a given day can be a degree or two different, and it feels cooler on a windy day or after a long time in the water.

What it means on a boat day

• June to November: the warmest water, the easiest months for long swims and for children.
• December to May: cooler water; a rash vest or a short wetsuit keeps you comfortable for longer, and the boat’s shade and a towel matter more between swims.
• The north wind can be stronger in some months; the month-by-month weather guides explain it.

Read the weather guides for Sharm El Sheikh, Hurghada and Marsa Alam, and snorkeling in the Red Sea.

Questions

Is the Red Sea warm enough to swim in winter?

Yes, for most people. The average stays at about 22 to 25°C from December to April. Many guests wear a rash vest or a thin wetsuit to stay in longer.

Does the boat provide wetsuits?

It depends on the boat. Your quote says what gear is included before you pay.