September weather forecast
Güllük, Turkey

September brings the end of the sweltering heat, paving the way for the city's autumn season. Temperatures start to cool down, signifying the start of the transition from summer to fall. Despite this change, the weather remains pleasant with barely any rainfall, a mere 17mm (0.67"), and the sea maintains a warm temperature, still welcoming to swimming and other seaside activities. Güllük’s weather in September is an appealing mixture of late-summer warmth and early-autumn mildness, making it a particularly attractive time for visitors.

Temperature

In September, the average high-temperature marginally decreases from 33°C (91.4°F) in August to a still hot 30°C (86°F). Contrasted against daytime highs, Güllük records an average nighttime low of 17°C (62.6°F) in September.

Rainfall

In Güllük, in September, it is raining for 5 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, there are 101 rainfall days, and 773mm (30.43") of precipitation is accumulated.

Sea temperature

In Güllük, the average seawater temperature in September is 23°C (73.4°F).
Note: Imagine a swim in 23°C (73.4°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

The average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 06:40 and sunset at 19:38. On the last day of the month, sunrise is at 07:04 and sunset at 18:54 +03.

Sunshine

In Güllük, the average sunshine in September is 11h.

UV index

In September, the average daily maximum UV index in Güllük is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.