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Piraeus Weather September

Piraeus is situated in Mediterranean climate zone that typically has warm or hot summer with mild rains and soft but rainy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Piraeus in September.
![]() | average daily high | +28.7°C |
![]() | average daily low | +19.8°C |
![]() | sea temperature | +25°C |
![]() | daytime | 12.8 h |
![]() | sunny / overcast hours | 8.4 / 4.4 |
![]() | average monthly precipitation | 14 mm |
High season with the best weather conditions for the beach leisure in Piraeus are typically June, July, August, September.
Temperature in Piraeus
In September the average daily maximum in Piraeus is +28.7°C, and the minimum +19.8°C.
The hottest September day on record is +38.6°C, and the coldest +8.9°C.
Best beach resorts in September:

Barcelona
Spain

Nice
France

Rimini
Italy

Cannes
France

Lisbon
Portugal

Marseille
France
Daylight hours
There are 12.8 hours of daylight in Piraeus in September. Out of these, on average 8.4 are sunny, which means there is quite a lot of sun.
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Sea temperature
The average monthly temperature in the Aegean Sea on the beaches of Piraeus in September is +25°C.
The water is warm enough for nearly everyone to bathe in.
Precipitation
The amount of precipitation in Piraeus in September is usually 14 mm, a negligible amount.