September Travel in Turkey: Top Destinations for Sun and Sea

28.08.2025 - 11:30

When it comes to holidays in Turkey, the months that first come to mind are usually June, July and August, but September is actually one of the best times for a holiday. The crowds of the summer season gradually thin out, the sea is still warm, and hotels and holiday villages take on a more tranquil atmosphere. The weather is ideal for both daytime beach activities and pleasant evening strolls. In short, September is a unique time to both relax and take advantage of affordable holiday opportunities. So, where should you go for a holiday in Turkey in September? Can one still swim in the sea in September in Turkey? Which regions have warmer weather in Turkey? Let's explore together!

Why Should You Choose a September Holiday in Turkey?

The biggest advantage of September is that it is one of the most balanced periods of the seasonal transition. The scorching heat of summer gradually subsides, while the coolness of autumn has not yet begun. This offers a holiday atmosphere where you can enjoy the sea during the day and breathe easy in the evenings.

Let's elaborate a little more on the reasons for choosing September in Turkey:

Quiet Beaches and More Affordable Prices: Compared to July and August, the busiest months of summer, hotel prices are more affordable in September. Furthermore, thanks to the decrease in crowds, you can find a more comfortable spot on the beach and sit down at restaurants without waiting in line.
Still Warm Sea: The sea temperature along Turkey's southern coast is still quite high in September. Especially in regions such as Antalya, Kaş, and Fethiye, swimming in September is almost as enjoyable as swimming in the middle of summer.
Culture + Beach Holiday Combination: Enjoying the beach during the day and exploring historic cities or going on nature walks in the evening is much more comfortable in September. This is because the temperature is ideal for long walks and outdoor activities.
Romantic Atmosphere: September offers a romantic holiday away from the summer crowds, especially for couples. Sunset views, cool evenings and quiet coves make this period special.

Best Places to Swim in the Sea in Turkey in September

In September, you can comfortably swim in the sea in many regions of Turkey. However, while the sea water remains warmer in some regions, it may be cooler in others. Here is detailed information by region:

Antalya and Surroundings (Lara, Konyaaltı, Kemer, Alanya, Side)

Sea Water Temperature: Average 27–28°C
Weather: Around 30°C during the day, 20–22°C in the evening

Antalya still feels like summer in September. The sea is almost as warm as a swimming pool and rainfall is very rare. Lara and Konyaaltı beaches are particularly popular due to their proximity to the city centre and the facilities they offer. Kemer and Side stand out for both their sea and nightlife.

Bodrum (Gümbet, Bitez, Türkbükü)

Sea Water Temperature: Average 25–26°C
Weather: Daytime 27–30°C, evening 18–20°C

Bodrum enters one of its most enjoyable periods in September. The summer crowds thin out, but the nightlife remains vibrant. The sea is still warm, making it an ideal time for boat trips and bay tours.

Fethiye – Ölüdeniz – Göcek

Sea Water Temperature: Average 27°C
Weather: Daytime 28–32°C, evening 18–21°C

Fethiye and its surroundings are a true blue cruise paradise in September. Taking a boat tour in the bays of Göcek, swimming in Ölüdeniz or hiking in Butterfly Valley is much more enjoyable during this period.

Kaş and Kalkan

Sea Water Temperature: Average 27–28°C
Weather: Daytime 28–31°C, evening 19–21°C

Known as Turkey's diving centre, Kaş is perfect for diving and snorkelling in September. Not only is the sea water temperature high, but visibility is also excellent. Kalkan, on the other hand, stands out for those seeking a peaceful holiday with its tranquil atmosphere and boutique hotels.

Çeşme and Alaçatı

Sea Water Temperature: Average 22–24°C
Weather: Daytime 25–28°C, evening 17–19°C

Çeşme is still lively in September but without the summer crowds. Although the sea is a bit cooler, this period is ideal for windsurfing, especially in Alaçatı. Taking an evening stroll along the marina in Çeşme is also quite enjoyable.

September Vacation in Turkey by Region

Antalya Region: The safest option in September for those who want to get the most out of a beach holiday. It is possible to swim without compromising on the heat.

South Aegean (Bodrum, Marmaris, Datça): Suitable for those who want both entertainment and a nature holiday. Boat tours are very enjoyable in September.

Fethiye & Göcek: The ideal time for those seeking blue cruises and nature holidays.

Northern Aegean (Çeşme, Ayvalık, Foça): Although the sea is cooler, it is advantageous for wind sports. This period is also ideal for those considering a gastronomic holiday.

September Weather in Turkey

In September, the weather still carries summer temperatures along Turkey's southern coast. While temperatures can reach up to 30 degrees in the Mediterranean, daytime temperatures in the Aegean range from 26–30°C. A slight coolness is felt in the evening hours, so it is advisable to bring a light cardigan.

Although the chance of rain is low, short showers may occur towards the end of the month. However, these showers are usually brief and will not affect your holiday.

Would a Vacation be Cheaper in Turkey in September?

Hotel prices in September are lower than during the summer season. You can find particularly advantageous rates by booking early.
Blue cruises and boat tours remain popular during this period, but offer a more tranquil atmosphere compared to the busy summer season.
Booking a car hire at the beginning of September is advantageous in terms of price. Having your own vehicle also makes it much easier to explore the coastal towns.

Activities to Do in September in Turkey

Diving and Snorkelling: Explore the underwater world in the bays of Kaş, Kalkan and Bodrum.

Blue Voyage: Taking a boat trip along the Göcek, Fethiye and Marmaris route is one of September's most enjoyable activities.

Cultural Tours: Visit ancient cities such as Perge, Side and Aspendos in Antalya.

Nature Walks: Routes such as the Lycian Way and Butterfly Valley are easier to explore in September when the weather cools down.

Wind Sports: Çeşme and Alaçatı still offer ideal wind conditions for surfing.

Frequently Asked Questions

Can you swim in the sea in Turkey in September?

Yes. Sea temperatures along the Mediterranean coast in particular range between 25–29°C, making it ideal for swimming.

Which region in Turkey is warmer in September?

The Mediterranean is generally warmer than the Aegean. However, southern Aegean locations such as Bodrum and Fethiye can be as warm as the Mediterranean.

What is the ideal time for a vacation in September in Turkey?

The sea and air are warmer at the beginning of September. The middle and end of September offer a calmer, more peaceful atmosphere.

Should You Have a Vacation in Turkey in September?

Taking a vacation in Turkey in September is one of the best choices in terms of both enjoying the sea and economic advantages. From Antalya to Bodrum, and from Fethiye to Kaş, the sea is still warm, the beaches are quieter, and prices are much more affordable.

When planning a vacation in September in Turkey, you only need to pay attention to the following:

The Mediterranean coast (Antalya, Kaş, Kemer) offers warmer seas.
The south of the Aegean (Bodrum, Fethiye, Datça) stands out for both its warm seas and natural beauty.
The northern Aegean (Çeşme, Ayvalık) may be cooler but it is ideal for wind sports and a gastronomic holiday.

In short, going on a vacation in Turkey in September is an excellent option for those who want to experience all the beauty of summer while avoiding the crowds.