September weather forecast
Kallithea, Greece

September, the first month of the autumn in Kallithea, is still a warm month, with an average temperature ranging between min 20°C (68°F) and max 28°C (82.4°F).
The perfect water temperature of 25°C (77°F) with 10mm (0.39") of accumulated rainfall and only 2 rainfall days, makes September a great period for swimming and other water activities.

Temperature

Kallithea in September undergoes a slight reduction in the average high-temperature, shifting from August's hot 31°C (87.8°F) to a moderately hot 28°C (82.4°F). Kallithea's average low-temperature is measured at an agreeable 20°C (68°F) during September.

Rainfall

In Kallithea, Greece, during September, the rain falls for 2 days and regularly aggregates up to 10mm (0.39") of precipitation. In Kallithea, Greece, during the entire year, the rain falls for 81 days and collects up to 780mm (30.71") of precipitation.

Sea temperature

The months with the warmest seawater in Kallithea are August and September, with an average sea temperature of 25°C (77°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In September, the average length of the day in Kallithea, Greece, is 12h and 28min.
On the first day of September, sunrise is at 06:54 and sunset at 19:57. On the last day of the month, sunrise is at 07:21 and sunset at 19:10 EEST.

Sunshine

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

UV index

In September, the average daily maximum UV index in Kallithea is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Alert! The Sun's UV rays are heightened by the reflection of sand and water.