Italy weather in September
In September, popular resorts in Italy (Palermo, Catania, Cagliari, Sorrento, Bari) average 26°C by day and 19°C at night, and the sea is about 24°C. On average 59 mm of rain falls during the month.
That is 4°C cooler than in August, and in October days average 22°C.
It is good weather for both the beach and sightseeing. The sea is warm and pleasant for swimming.
Warmest resorts in Italy in September
Italy weather in other months
See also
FAQ
Is it warm in Italy in September?
In September, popular resorts in Italy (Palermo, Catania, Cagliari, Sorrento, Bari) average 26°C by day and 19°C at night, and the sea is about 24°C. On average 59 mm of rain falls during the month. It is good weather for both the beach and sightseeing.
What is the sea temperature in Italy in September?
About 24°C on average. The warmest water is in Catania (26°C).
Where is it warmest in Italy in September?
The warmest place is Catania (28°C by day), followed by Palermo (27°C) and Bari (26°C).
Does it rain in Italy in September?
On average 59 mm of rain falls in the month. It is a fairly wet month, so pack a jacket.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.