The Persian Gulf in January: +22°C. The Black Sea in July: +24°C. The difference is two degrees, yet one is called "winter swimming" and the other is the height of beach season.

Dubai is one of the few resorts where you can comfortably swim year-round. The average annual water temperature in the Persian Gulf is +28.3°C, and even in the coldest month it never drops below +21°C. For comparison, the Black Sea near Sochi doesn't hit that temperature until late June.

What Happens to the Water in Winter

The Persian Gulf is shallow and enclosed, so it cools down slowly. Water temperatures by winter month:

  • December: +23–25°C early on, settling to +23–24°C by month's end.
  • January: +21–23°C — the annual minimum.
  • February: +22–23°C, with a gradual warming trend beginning.

For context: the Black Sea near Sochi peaks at +24–26°C in July; near Anapa, +24–25°C. Winter Dubai is comparable to the Black Sea in June — a month when most Russians are already swimming without hesitation.

Why It Can Feel Different Than the Numbers Suggest

The thermometer reading isn't everything. At +22°C in the water, what matters is what's happening on shore. In Dubai, winter air sits at +24–26°C during the day, the sun is bright, and the wind is gentle. You step out of the sea and it's warm and comfortable.

On the Black Sea at the same +22°C water temperature in June, the air might be +20°C with wind, and after swimming all you want is to wrap yourself in a towel.

But Dubai's winter has its own catch: evenings turn cool. Temperatures drop to +14–16°C, and after sunset it gets chilly on the beach. Comfortable swimming runs from about 10 a.m. to 4–5 p.m., while the sun is high.

When the Water Is Warmer Than a Black Sea Summer

Taking the Black Sea's July range (+24–26°C) as a benchmark, the Persian Gulf exceeds those values for eight months of the year — April through November. In October, Dubai's water is still +30°C; in November, +27°C. Even December at +24°C matches the Black Sea's peak.

The only months the Persian Gulf dips slightly below a Black Sea summer are January and February. Even then, the gap is a couple of degrees — not a chasm.

Summer Dubai: The Other Extreme

In summer, the Persian Gulf heats up to +32–34°C. That's no longer a refreshing swim — it's a dip into warm soup. With air at +40–45°C and humidity reaching 90%, stepping onto the beach becomes an endurance test.

Most tourists in July–August actually prefer heated pools surrounded by air-conditioned lounge areas — paradoxical, but true.

That's precisely why winter is Dubai's high season, not summer. The best beach weather here runs from October through April — exactly when it's cold in Russia.

Where to Swim in Winter

All of Dubai's main beaches operate year-round. The differences come down to infrastructure and atmosphere:

  • JBR Beach (Jumeirah Beach Residence) — the most popular city beach. Restaurants, rentals, loungers. Busy in winter, but without the summer crush.
  • Kite Beach — for the active crowd: kitesurfing, volleyball, jogging. Winter winds are stronger, which is great for kiters.
  • La Mer — a stylish beachfront district with cafés and boutiques. Perfect for a leisurely day by the water.
  • Hotel beaches — Atlantis, Jumeirah, Madinat. Heated pools on hand in case the sea feels a touch too cool.

What Russian Tourists Should Keep in Mind

Winter is peak season in Dubai, and prices reflect it. Hotels in December–January cost one and a half to two times more than in May or September. Book well in advance, especially over the New Year holidays — Dubai has long been one of the top destinations for Russians during the festive season.

Direct flights from Moscow take about 5 hours; from St. Petersburg, 5.5. Russian citizens don't need a visa for stays of up to 90 days.

One final note: don't fly to Dubai in winter solely for the sea. The water is comfortable but not hot, and for those accustomed to a Black Sea August at +28°C, January's +22°C may feel bracing. Winter Dubai works best as a combination: beach in the morning, city in the afternoon. And it's in precisely that format that it delivers best.