Why is the sea water cold in Antalya and which beach has warmer water?

From messages by 2 participants in 1 source · Last activity: today

TL;DR

Konyaaltı and Mermerli beaches can have cold underwater currents from groundwater, especially after rain; Alanya's water is often warmer by comparison. Temperatures usually return to normal within a day or two.

What the community said

On 7 September 2026, the sea at Lara reportedly felt cool and bracing.

36 days ago Lara

On 18 September 2026, visitors staying at Eftalia reported very warm, calm and clean seawater.

25 days ago Eftalia

In the evening at Konyaaltı beach the water was warm and pleasant, swam until dark. The cooling was linked to recent rain — by the next day it was back to normal, clean water, pebble bottom instead of sticky sand.

Konyaaltı beach

Confirmed that Alanya's water feels warmer with no icy bottom currents, unlike Antalya.

Alanya

At Mermerli and Konyaaltı beaches the water feels cold due to underground currents, even though online sources list around 28°C (82°F); it felt colder than the Black Sea coast.

Mermerli and Konyaaltı beaches