Very hot in Sep
37°C average high
avg high · 27° at night
25°C+ on almost every day · often 35°C+
Turkey
Dalaman & Marmaris weather in September
Is it warm? Yes. September in Dalaman & Marmaris is hot: afternoons average 32°C and nights 22°C. Most days (80%) peak between 28°C and 36°C.
Hot · average high
32°C
25°C or more on almost every day. 35°C or more on about one in ten days.
- Average low22°overnight
- Sea28°average, 2023–2025
- Rainy days217 mm in the month
- SkyMostly clear10% cloud · 91% clear days
How warm it really gets
Every September afternoon from 2011–2025: 450 days. Most (80%) peaked between 28° and 36°.
September, year by year
The average September high in each year. The warmest, 2020, averaged 34°C; the coolest, 2014, 29°C.
Compared with home
Average September highs. Expect rain on about 2 days (17 mm in a typical month).
- Dalaman & Marmaris32°
- London19°
- Manchester17°
- Dublin17°
- Cork17°
- Belfast16°
- Glasgow16°
Warmer in September, not much further
Flying times are estimates from Dublin; Dalaman & Marmaris is about 4h 30m.
Very hot in Sep
37°C average high
avg high · 24° at night
25°C+ on almost every day · often 35°C+
Very hot in Sep
33°C average high
avg high · 26° at night
25°C+ on almost every day
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology