September weather forecastPireas, Greece
September
Weather in September
The ideal sea water temperature of 25°C (77°F) makes September in Pireas, Greece, the best time for swimming and other water activities.Sea temperature
In September, the average sea temperature is 25°C (77°F).Note: For swimming, diving, and enjoying other water activities, the range of 25°C (77°F) to 29°C (84.2°F) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.
Daylight
In September, the average length of the day in Pireas is 12h and 26min.On the first day of September in Pireas, sunrise is at 06:55 and sunset at 19:54. On the last day of the month, sunrise is at 07:20 and sunset at 19:09 EEST.
Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Pireas, Greece, in September, the average water temperature 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.
The average day length in September in Pireas is 12h and 26min.
On the first day of September in Pireas, sunrise is at 06:55 and sunset at 19:54. On the last day of the month, sunrise is at 07:20 and sunset at 19:09 EEST.
Average sea temperature in September
Pireas, 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
Pireas, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).





