ItalyThe weather in September in Naples
It's warm in September in Naples with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 30°C. At night, you can expect temperatures between 17°C and 21°C.
Looking for great weather? September is a good time to be in Naples. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Naples, Italy. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2015, Naples reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 24°C.
Water temperature
The water temperature at Naples is 28°C this month. Nice and warm for a swim.
Rainfall amount
In September, there is an average of 88 mm of precipitation, spread over 12 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Naples
Click on any day in September to get detailed info about the usual weather on that day in Naples. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Naples | New York | |
|---|---|---|
| Average temperature | 28°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 88 mm | 57 mm |
| Rainy days | 12 days | 9 days |
Start of September
The month of September starts in Naples with hot temps, averaging around 29°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps stay steady at around 29°C, with nights around 21°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Naples is around 26°C, while nighttime temps are about 18°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Naples for all months and discover the best travel time
Curious about the weather in other parts of Italy? Check out the climate and weather for spots like Tuscany, Sicily, Lake Garda, or explore other destinations in Italy.
Temperature charts
These charts show the average temperatures in September in Naples, Italy. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Naples
Temperature in September in Naples over the years
Precipitation charts
These charts show the average amount of precipitation in September in Naples, Italy. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Naples
Total precipitation in September in Naples over the years
Daily UV index in September in Naples
This chart shows the average daily UV index in September in Naples, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Naples
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Average weather in Naples by month
Click on a month below to see detailed weather info for Naples. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.