September weather forecast
Mikonos, Greece

September, the first month of the autumn in Mikonos, is still a warm month, with an average temperature fluctuating between 24°C (75.2°F) and 18°C (64.4°F).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 27°C (80.6°F) to a still moderately hot 24°C (75.2°F). Mikonos's nighttime temperature in September drops to an average of 18°C (64.4°F).

Rainfall

In Mikonos, in September, it is raining for 2 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, in Mikonos, there are 68 rainfall days, and 526mm (20.71") of precipitation is accumulated.

Sea temperature

In Mikonos, the average seawater temperature in September is 23.7°C (74.7°F).
Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 23.7°C (74.7°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

In Mikonos, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 06:49 and sunset at 19:47. On the last day of September, sunrise is at 07:13 and sunset at 19:03 EEST.

Sunshine

In September, the average sunshine is 11h.

UV index

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 7 in September translates into these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.