Marmaris weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: June – October
What is the weather like in Marmaris in September?
In September, Marmaris is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 26.3 °C – lovely and warm for swimming. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 17 mm in total. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is an excellent month for a holiday in Marmaris.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 100 | 100 | 90 |
| Day | 31° | 28° | 24° |
| Night | 25° | 22° | 19° |
| Sea | 27° | 26° | 24° |
| Sun | 12 h | 11 h | 9 h |
| Rain days | 1 | 2 | 5 |
More details for September
- Daylight
- 12 h 28 min06:48 – 19:16
- UV index
- 7 · highclear sky, noon (estimate)
- Muggy days
- 17 daysdew point 18 °C or more
- Wind
- 14 km/haverage daily peak
- Cloud cover
- 10 %on average
- Hot days
- 6 days30 °C or more
- Time zone
- UTC+3Europe/Istanbul
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
Marmaris in September: quick answers
Is Marmaris hot in September?
Yes. In September, Marmaris is hot: daytime highs average 28 °C and nights stay around 22 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Marmaris in September?
Yes. In September the sea averages 26.3 °C – lovely and warm for swimming.
Does it rain much in Marmaris in September?
Rain is rare: about 2 days bring 17 mm in total.
Marmaris month by month
The whole year in MarmarisAll destinations: Turkey
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)