September weather forecast and climate
Athens, Greece

The ancient city of Athens in Greece with a view of the Parthenon Temple at dusk
The ancient city of Athens in Greece with a view of the Parthenon Temple at dusk
As autumn comes, some of the summer heat starts to fade slightly. Average temperatures in Athens are still at a pleasant 24°C (75.2°F). The amount of sunshine a day also starts to drop, with 7 hours of sun, but there is still a low chance of rain.
Going to the beach in Glyfada, and adjacent suburbs is a pleasant activity as the sea remains heated.

What is the temperature in September in Athens?

In September, in Athens, the average high-temperature is 28.7°C (83.7°F), and the average low-temperature is 19.8°C (67.6°F).

How many days does it rain in September in Athens?

In September, in Athens, the rain falls for 3.3 days. Throughout September, 13.9mm (0.5") of precipitation is accumulated.

How warm is the water in September in Athens?

The average seawater temperature, in September, is 25°C (77°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Average temperature in September - Athens, Greece
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is August (33.7°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in September: 19.8°C

The month with the highest average low temperature is August (23.8°C).
Coldest months (with the lowest average low temperature) are January and February (6.8°C).

Average humidity in September - Athens, Greece
  • Average humidity in September: 57.2%

The month with the highest relative humidity is November (71.9%).
The month with the lowest relative humidity is August (47.6%).

Average rainfall in September - Athens, Greece
  • Average rainfall in September: 13.9mm

The wettest month (with the highest rainfall) is December (69.1mm).
The driest month (with the lowest rainfall) is July (5.8mm).

Average rainfall days in September - Athens, Greece
  • Average rainfall days in September: 3.3 days

The month with the highest number of rainy days is January (12.6 days).
The month with the lowest number of rainy days is August (1.7 days).

Average sea temperature in September - Athens, Greece
  • Average sea temperature in September: 25°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

Average daylight in September / Average sunshine in September - Athens, Greece
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.4h

The month with most sunshine is July (Average sunshine: 12.4h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in September - Athens, Greece
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

deutscheenglishespañolрусский中文