When to go
Lazio in September
Across the 60 Lazio towns we hold, September averages 25 degrees by day and 16 at night, with about 10 days of rain. The sea off the 10 coastal towns sits around 25 degrees. Measured 2020–2024.
Where to go in September
Picked by a rule, not by mood: the weather in the comfortable band, our own editorial verdict on the town, a festival that month, and a sea worth swimming in. The reason is printed under each one.

Ponza
Province: Latina · 5 m
Averages 25 degrees with about 7 rain days. We list it as best in May–Jun, Sep. The sea is around 25 degrees.

Ventotene
Province: Latina · 18 m
Averages 25 degrees with about 8 rain days. We list it as best in May–Sep. The sea is around 26 degrees.

San Felice Circeo
Province: Latina · 100 m
Averages 26 degrees with about 9 rain days. We list it as best in May–Sep. The sea is around 25 degrees.

Minturno
Province: Latina · 140 m
Averages 26 degrees with about 9 rain days. We list it as best in May–Sep. The sea is around 26 degrees.

Anagni
Province: Frosinone · 424 m
Averages 26 degrees with about 8 rain days. We list it as best in Apr–Oct.

Arpino
Province: Frosinone · 450 m
Averages 25 degrees with about 8 rain days. We list it as best in Apr–Oct.

Collalto Sabino
Province: Rieti · 980 m
Averages 22 degrees with about 8 rain days. We list it as best in May–Oct.

Bassano in Teverina
Province: Viterbo · 304 m
Averages 27 degrees with about 9 rain days. We list it as best in Apr–Oct.

Bomarzo
Province: Viterbo · 263 m
Averages 27 degrees with about 9 rain days. We list it as best in Apr–Oct.

Montefiascone
Province: Viterbo · 590 m
Averages 24 degrees with about 9 rain days. We list it as best in Apr–Oct.
What is on in September
5 festivals we hold a source for. Recurring events, so the month is the promise and the exact dates are the comune’s to publish.
