Turkey in September: Weather, Tips & What to Expect
Turkey is one of the rare countries that can experience all four seasons at once, thanks to its geographical location. If you are planning to visit Turkey in September and wondering what the weather is like in Turkey in September, make sure you keep reading through this article! September in Turkey is a special period that partially retains the warmth of summer while also beginning to bring the coolness of autumn. For those wishing to enjoy a beach holiday, the sea water still retains its summer warmth, while for those interested in cultural and nature tourism, temperatures have dropped to a more favourable level. So, what is the weather like in Turkey in September? What are the best places to visit in Turkey in September? Can you swim in the sea in Turkey in September? Let's explore together!
Weather in Turkey in September
According to data from the General Directorate of Meteorology, September 2024 was 1–2 °C warmer than the long-term average. Temperatures were above normal, particularly along the Marmara, Aegean and Mediterranean coasts, while temperatures in Central Anatolia and the eastern regions were close to average. This makes September a golden time to visit Turkey.
Marmara Region: Average temperature 22–23 °C. Pleasant during the day, slightly cool in the evenings.
Aegean Region: Average 23–26 °C. Warm during the day, mild in the evenings.
Mediterranean Region: Temperatures between 25–30 °C, one of the most suitable periods for seaside tourism.
Central Anatolia: 18–24 °C, with a noticeable coolness in the mornings and evenings.
Black Sea: Average 20–23 °C, with a higher probability of rainfall compared to other regions.
Eastern and Southeastern Anatolia: 20–30 °C, warm during the day, cooler at night.
In terms of rainfall, although September is generally more active than the summer months across Turkey, it is typically characterised by low rainfall and plenty of sunshine. The Black Sea coast is an exception, where sudden showers and short downpours can occur.
Sea Water Temperature – Can You Swim in the Sea in Turkey in September?
Sea tourism continues on Turkey's shores in September. Water temperatures along the Mediterranean coast reach 28–29 °C, offering almost the same enjoyment as in the height of summer. The Aegean coast, meanwhile, offers refreshing temperatures of 23–26 °C, which are still ideal for swimming. In the Marmara region, temperatures begin to drop to between 20–23 °C, so it may feel a little cool for those accustomed to the summer heat. The sea is cooler on the Black Sea coast, but there are still quite a few people swimming in areas such as Trabzon and Rize.
From this perspective, the answer to the question ‘Can you swim in the sea in Turkey in September?’ is definitely yes. Tourist areas such as Antalya, Alanya, Bodrum, Kuşadası and Çeşme are still busy, but with the summer crowds thinning out, a more peaceful holiday is possible.
Regional Climate in September in Turkey
Thanks to its geographical diversity, Turkey offers opportunities for seaside tourism, cool mountain retreats, and historical and cultural tours all at the same time. In September, weather conditions generally provide the ideal balance for travel. Here is a detailed examination and recommendations by region:
1. Marmara Region in September – Istanbul's Autumn Weather and Historical Riches
In September, temperatures in Marmara generally hover around 20–25 °C. Days are warm and sunny, while evenings are cool and windy. While walking along the Bosphorus in Istanbul, you may feel like summer is still here, but the coolness of the evening may require a light jacket.
Places to Visit:
Istanbul: Classics such as Sultanahmet, Topkapı Palace, Hagia Sophia and the Grand Bazaar in the Historic Peninsula are a must-see.
Çanakkale: The ancient city of Troy and the Gallipoli Peninsula appeal to both history buffs and nature walkers.
Bursa: Highlights in the city, the first capital of the Ottoman Empire, include the Grand Mosque, Cumalıkızık Village, and İskender kebab.
Things to Do:
A Bosphorus tour or a bike ride on the Princes' Islands in Istanbul.
A walk in Belgrade Forest in the cool autumn air.
Exploring the historic battlefields and visiting the memorials in Çanakkale.
Cuisine: Fish sandwiches, stuffed mussels, boza, chestnut sweets, and Istanbul simit.
2. Aegean Region in September – Olive Trees and Harvest Time
The Aegean still retains its summer warmth in September. Temperatures between 23–30°C are ideal for both beach holidays and cultural excursions. The seawater is still warm, so beach fun continues. At the same time, September is the harvest season in the Aegean; vineyards come alive, and wine festivals are held.
Places to Visit:
Izmir: Ephesus Ancient City, Sirince Village, and Kemeraltı Bazaar.
Muğla: The bays of Bodrum, Marmaris bay tours, Fethiye Ölüdeniz.
Denizli: Pamukkale travertines and the ancient city of Hierapolis.
Things to Do:
Windsurfing in Alaçatı.
Wine tasting in Selçuk and Şirince during the grape harvest season.
Paragliding in Ölüdeniz, boat tour in Dalyan and caretta caretta turtle watching.
Cuisine: Artichokes in olive oil, sea fennel, kumru (a type of sandwich), boyoz (a type of pastry), seafood.
3. Mediterranean Region in September – For Those Who Don't Want to Leave Summer Behind
In September, temperatures in the Mediterranean are around 25–32 °C. The sun is still strong, and the sea is at its most enjoyable. The summer crowds have thinned out, and the beaches are more peaceful. That's why the Mediterranean provides the clearest answer to the question, ‘Can you swim in the sea in Turkey in September?’
Places to Visit:
Antalya: Kaleiçi, Düden Waterfall, Olympos and Phaselis Ancient City.
Alanya: Alanya Castle, Cleopatra Beach.
Kaş & Kalkan: The most popular destinations for diving and boat tours.
Things to Do:
Boat tours and diving in Antalya and Alanya.
Rafting in Köprülü Canyon.
Hiking on the Lycian Way.
Tour of the sunken city of Kekova in Kaş.
Cuisine: Tantuni, stuffed courgette flowers, tahini salad, ice cream.
4. Central Anatolia in September – Cool Nights and History-Filled Days
In Central Anatolia, September temperatures range between 18–25 °C. Days are comfortable for sightseeing, while evenings require a coat or cardigan due to the coolness. Cappadocia, in particular, is one of the best times for hot air balloon tours and nature walks in September.
Places to Visit:
Cappadocia: Fairy Chimneys, Göreme Open Air Museum, Uçhisar Castle.
Ankara: Anıtkabir, Museum of Anatolian Civilisations.
Konya: Mevlana Museum and Sille Village.
Things to Do:
Hot air balloon tour in Cappadocia.
Nature walk in Ihlara Valley.
Gondola ride along the Porsuk River in Eskişehir.
Cuisine: Testi kebab, clay pot beans, Konya meat bread, Ankara döner.
5. Black Sea Region in September – A Thousand Shades of Green
The Black Sea remains cool and rainy even in September. Average temperatures range from 20–23 °C, but be prepared for sudden showers. It is one of the best times for nature lovers; the highlands, forests and streams take on the first colours of autumn.
Places to Visit:
Trabzon: Sumela Monastery, Uzungöl.
Rize: Ayder Plateau, Fırtına River.
Artvin: Karagöl Sahara National Park.
Things to Do:
Mountain pasture walks, camping and nature photography.
Visiting tea fields and experiencing the harvest.
Nature sports such as zip-lining and rafting.
Cuisine: Kuymak (mıhlama), steamed anchovies, black cabbage soup, and Laz pastry.
6. Eastern and Southeastern Anatolia in September – A Journey Through Culture and History
Daytime temperatures in Eastern and Southeastern Anatolia range from 20–30 °C, while nights are cool. September is one of the most comfortable times to explore the region. Rich in both culture and history, these areas offer a different experience of Turkey.
Places to Visit:
Mardin: Stone houses, Dara Ancient City, Mardin Museum.
Diyarbakır: UNESCO heritage walls, Hevsel Gardens.
Van: Lake Van, Akdamar Island and Van Castle.
Şanlıurfa: Göbeklitepe, Balıklıgöl.
Things to Do:
Boat tour in Van.
Cultural tour of Mardin's streets.
Sıra gecesi experience in Urfa.
Coffee break in historic inns in Diyarbakır.
Cuisine: Lahmacun, liver kebab, stuffed meatballs, Van breakfast, katmer.
Why Visit Turkey in September?
In summary, a holiday in Turkey in September is one of the most appealing times of the year, with its warm but not stifling climate, beaches suitable for seaside tourism, historical and cultural riches, and delicious cuisine. Visitors to Turkey during this period enjoy a holiday experience away from the crowds and filled with the unique landscapes offered by nature.
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