Best Time to Dive the Red Sea: A Month-by-Month Guide
The Red Sea is a year-round destination — the water is warm and the visibility superb in every season — but the “best” time really depends on what you want to see and how you like to dive. This month-by-month guide covers water temperature, visibility, the marine-life calendar, crowds and pricing, and what to pack, so you can time your trip perfectly.
Water temperature & visibility by season
| Season | Water temp | Highlights |
|---|---|---|
| Spring (Mar–May) | ~22–26°C | Warming water, fewer crowds, good value, mantas possible |
| Summer (Jun–Aug) | ~27–30°C | Warmest; prime shark season; busiest |
| Autumn (Sep–Nov) | ~26–28°C | Calm seas, superb visibility — the sweet spot |
| Winter (Dec–Feb) | ~21–23°C | Quieter, cheaper, great for wrecks and reefs |
Season by season
Spring (March–May)
Warming water, fewer crowds and good value, with a chance of mantas and even a passing whale shark as plankton blooms.
Summer (June–August)
The warmest water and prime shark season — oceanic whitetips at Elphinstone, and hammerheads at the Brothers and Daedalus. Also the busiest and most in-demand period, so book ahead.
Autumn (September–November)
Warm water, calm seas and outstanding visibility — for many divers, the sweet spot of the year, combining good conditions with thinning crowds.
Winter (December–February)
Cooler water (bring a 5mm or semi-dry), quieter reefs and good value; ideal for wrecks and reef diving, though some offshore liveaboard routes ease off.
The marine-life calendar
Sharks (oceanic whitetips, hammerheads) peak in summer and early autumn; dolphins and turtles are reliable year-round at Marsa Alam; mantas and whale sharks are occasional spring/summer visitors. Coral spawning and fish aggregations bring extra spectacle in the warmer months.
Crowds & pricing
Summer and holiday periods are busiest and priciest; spring and autumn offer the best balance of conditions and value; winter is quietest and cheapest.
What to pack by season
A 3mm wetsuit is plenty in summer; 5mm for spring and autumn; a 5mm semi-dry (plus hood) for winter. Bring a computer, an SMB and reef-safe sunscreen year-round.
By destination
Sharm El Sheikh dives well all year; Marsa Alam is year-round with summer best for sharks; the Deep South and liveaboard routes shine in the warmer months.
Frequently asked questions
When is the best time to see sharks in the Red Sea?
Summer and early autumn, especially on the offshore reefs of Marsa Alam and the Brothers/Daedalus liveaboard route.
Can you dive the Red Sea in winter?
Yes — it is quieter and cheaper, with slightly cooler water; a 5mm semi-dry keeps you comfortable, and the wrecks and reefs are excellent.
What is the cheapest time to dive the Red Sea?
Winter and the shoulder months typically offer the lowest prices and quietest reefs.
Which month has the best visibility?
Autumn generally offers the calmest seas and clearest water, though visibility is good year-round.
Plan around the season
Tell us when you can travel and what you want to see, and we will suggest the best destination and dates — get a tailor-made plan.
