Best Time to Visit Dalyan, Turkey — Month by Month Climate Guide

Mediterranean climate

Dalyan's climate at a glance

Dalyan enjoys a classic Mediterranean climate — hot, dry summers and mild, wetter winters. With over 300 sunny days a year, it is a reliably warm destination from April through October, and pleasantly mild even in the depths of winter. The sea temperature reaches a glorious 27–29°C in August and September, and stays warm enough for swimming well into October.

What this means in practice is that there is no truly bad time to visit — but each season has a distinct character. High summer is brilliant if you want blazing beach days and a lively town; spring and autumn are ideal for sightseeing, wildlife watching and a quieter pace; winter suits those who want the ruins and river to themselves.

The four seasons

Dalyan in spring — bougainvillea in bloom and warm sunny days

April & May

Spring — the sweet spot

Spring is arguably the finest time to visit Dalyan. The landscape is lush and green after the winter rains, wildflowers carpet the hillsides and the air smells of orange blossom. Temperatures are warm but not punishing — highs of 22–26°C — and the sea is beginning to warm up (18–20°C). The town is quiet, prices are lower, and you can have the ruins and the river largely to yourself.

The Caretta caretta turtles arrive at Iztuzu Beach from late April, making spring the earliest you can observe nesting activity. The Saturday market is at its freshest, piled high with local strawberries, broad beans and early vegetables.

Perfect summer day on the water near Dalyan

June, July & August

Summer — peak season

Summer in Dalyan is hot, bright and thoroughly enjoyable if you embrace the heat. July and August see daytime temperatures regularly reaching 35–38°C — enough to make midday a time for the shade, a cold Efes beer and a long lunch. Mornings and evenings are golden hours.

The sea reaches 26–29°C and the boat tours are at their most abundant. Iztuzu Beach is busy but never overwhelmed. The town is lively, riverside restaurants are packed and the Saturday market is overflowing. This is the time for long, lazy pool mornings, afternoon river boats and crab dinners as the sun goes down over the tombs.

Golden autumn evening on the Dalyan river

September & October

Autumn — arguably the best

September and October are the months most experienced Dalyan visitors prefer. The summer heat softens to a perfect 28–30°C, the sea is at its warmest (24–26°C), the crowds thin out and the quality of light on the river and the tombs is extraordinary — long golden afternoons that seem to last forever.

Most significantly, August through October is turtle hatchling season. At night, tiny loggerhead hatchlings emerge from their nests on Iztuzu Beach and make their first journey to the sea. Witnessing this — hundreds of hatchlings tumbling towards the moonlit water — is one of the most moving wildlife experiences in Turkey.

Lycian rock tombs in the quiet off-season

November through March

Winter — quiet and genuine

Dalyan in winter is a very different place — and a surprisingly appealing one. Temperatures rarely fall below 10°C and daytime highs of 14–18°C are common. The town becomes fully itself: locals return to cafés that were too busy in summer to serve anyone who wasn't a tourist, the market is quieter and more authentic, and the ruins of Kaunos are peaceful.

This is the time for expats and long-stay visitors who have discovered that Dalyan's year-round charm is something special. Swimming is not really on the agenda (sea temperature drops to 16°C), but walking the delta, exploring the ruins and eating well at almost any restaurant in town absolutely is.

Month by month

Dalyan climate by month

Quick reference guide for planning — all temperatures are approximate averages.

Month	Air temp	Sea temp	Crowds	What's happening
January	13°C	16°C	Very low	Town quiet, good for long walkers
February	14°C	16°C	Very low	Almond blossom appears, ruins atmospheric
March	17°C	17°C	Low	First warm days, wildflowers starting
April	22°C	18°C	Low–medium	Turtles arrive, green landscape, ideal hiking
May	27°C	20°C	Medium	Nesting begins, warm enough to swim, pre-peak prices
June	32°C	24°C	High	Peak nesting, warm sea, busy market
July	36°C	27°C	Peak	Hottest month, best beach weather, most lively
August	36°C	29°C	Peak	Hottest sea, hatchlings emerging at night
September	30°C	26°C	High	Best all-round month — warm, quieting, hatchlings
October	25°C	23°C	Medium	Warm, golden, quiet — excellent for sightseeing
November	18°C	20°C	Low	Town slows, still mild, some rain
December	14°C	18°C	Very low	Quiet, authentic, good for expat-style long stays

Highlighted rows indicate our recommended months for most visitors.

Wildlife calendar

The sea turtle calendar

If seeing sea turtles is part of your reason for visiting Dalyan, use this calendar to plan your trip. Timings are approximate and vary year to year with weather conditions.

April–May: Turtles arrive

Female loggerheads return from their ocean feeding grounds to the beach where they were born. The first turtles begin arriving at Iztuzu from late April. Spotting them in the water is possible from this point.

May–July: Nesting season

Females come ashore at night to lay their eggs, digging deep nests in the sand above the high-tide line. Each turtle may lay 3–5 clutches of 70–120 eggs across the season. DEKAMER scientists monitor and mark every nest.

August–October: Hatchlings emerge

After approximately 60 days of incubation, hatchlings begin emerging from nests at night. The tiny turtles instinctively head towards the brightest horizon — the sea — and swim away into the Mediterranean. It is one of the most moving wildlife spectacles in Europe.

When to visit Dalyan