Weather in Turkey in September

September is the coast without the worst of the crowds. The sea is still the point in the south. Sightseeing is easier than in August. Cappadocia becomes pleasant again. People who know the country often call this the month they would actually repeat.

The Aegean starts to cool sooner than the Mediterranean. A week in Bodrum and a week in Antalya are not the same September. The further south you are, the longer the sea holiday lasts.

Average temp: 20°C
13–26°C

Rainfall: 19 mm
Not much rain

Sunshine: 8.9 h
hours per day

What to expect

Daytime

Warm, not punishing, on the Mediterranean and Aegean. You can walk at more hours of the day than in July. Evenings cool enough inland for a layer, still terrace weather on the Antalya harbour.

This is the month a mixed trip works: coast days that are still about the water, then Cappadocia or Pamukkale without the high-summer glare. Istanbul is one of its better faces, which is a low bar in a humid city and still true.

Rain

Mostly dry on the south and west. The first proper autumn showers show up later in the month in the north-west and around the Marmara.

On the Mediterranean you can still ignore rain as a planning constraint. On the Black Sea you never could. The monthly table will show the split if you read it as geography, not as one number for a whole country.