The 10 most beautiful historical towns in Italy
Discover Italy's top 10 historic towns, featuring breathtaking medieval architecture and deep-rooted history, ideal for enthusiasts of extraordinary cities.
During September, Naples experiences high daytime temperatures of 25°C (77°F) and cooler nights around 20°C (68°F). As part of the summer season, expect quite a bit of rainfall. Around 96 mm (3.8 in) is typical.
If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Naples.
Pick a month to see the average temperature, rainfall and sunshine in Naples - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Naples typically drop from around 28°C (82°F) at the start of September to approximately 25°C (77°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 19°C (66°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Naples spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Naples.
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Naples in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Naples climate overview or explore weather in Italy.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most beautiful historical towns in Italy
Discover Italy's top 10 historic towns, featuring breathtaking medieval architecture and deep-rooted history, ideal for enthusiasts of extraordinary cities.
Experience mystical Assisi
Assisi is the most famous town in Umbria and best known because of Saints Francis and Clare of Assisi. Many visitors come to see the breathtaking San Francesco basilica.
The Battle of Oranges
This is one of the most unusual festivals in Italy. The festival is held in the middle of winter during the winter carnival. The entire city of Ivrea near Turin turns into a battlefield.
The most beautiful fishing village of Italy
Portofino is the most beautiful fishing village in Italy and maybe even in the world. We absolutely recommend that you add this beautiful place to your bucket list.