What's the sea temperature in Antalya in summer and when is the best time to visit if you don't like extreme heat?

By late September, after the peak summer heat has eased, daytime temperatures average about 25–27°C (77–81°F) and the sea remains comfortable for swimming at roughly 25°C (77°F).

Sensation on entry differs from some other resorts: in Antalya the water can feel cool right when you step in, especially if you stay still, and only feels comfortable once you're fully submerged. At sunrise the water feels especially brisk and cool.

At Konyaaltı beach around 7am the air is quite comfortable, about +28°C, but by midday it gets so hot that people retreat indoors under air conditioning.

At the peak of summer, daytime air temperature can reach up to 45°C (113°F), and it only becomes comfortable to walk outside after 9pm. The sea itself stays very warm and pleasant for swimming.

When air temperature goes above 40°C (104°F), it's tough to stay outdoors for long — better to move in short bursts between shaded spots. On the seaside promenade, a breeze makes the heat quite bearable, but wearing a hat and staying hydrated is important.

In mid-July, sea water along the Antalya coast stays around 25-28°C (77-82°F), depending on the specific beach and time of day.

On the main Antalya coastline the water tends to be warmer, around 30°C (86°F), while some nearby areas run a couple degrees cooler, around 28°C (82°F).

Heat tolerance is very individual — some travelers feel uncomfortable at 25°C (77°F), while others handle 30°C (86°F) fine. Staying right by the sea usually feels more comfortable thanks to constant breeze and shaded spots.

If you don't tolerate intense heat well, plan your trip for May or September — during these months it's comfortable almost everywhere, not just right on the coast.