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Weather in Napoli for September 2025

Your guide to Napoli weather in September - trends and predictions
  • In general, the average temperature in Napoli at the beginning of September is 29.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.3 °C by the end of September.

  • With an average of 4 rainy days, Napoli experiences minimal rainfall in September.

  • Is September a good time to visit Napoli? check out the best time to travel to Napoli page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
26
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/22°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Napoli in September average weather

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Temperatures trend during September in Napoli

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
29° /23° 0 mm 8
2 Sept. Sunny
Sunny
28° /23° 0 mm 7
3 Sept. Sunny
Sunny
29° /23° 0 mm 7
4 Sept. Sunny
Sunny
30° /23° 0 mm 8
5 Sept. Sunny
Sunny
29° /22° 2.9 mm 7
6 Sept. Sunny
Sunny
29° /23° 0.7 mm 7
7 Sept. Cloudy
Cloudy
30° /22° 0.4 mm 7
8 Sept. Cloudy
Cloudy
31° /23° 0 mm 8
9 Sept. Partly cloudy
Partly cloudy
29° /22° 12.3 mm 7
10 Sept. Sunny
Sunny
28° /22° 1.3 mm 7
11 Sept. Sunny
Sunny
28° /21° 0.7 mm 7
12 Sept. Sunny
Sunny
27° /22° 4.6 mm 7
13 Sept. Sunny
Sunny
25° /20° 5.3 mm 6
14 Sept. Partly cloudy
Partly cloudy
24° /19° 0.7 mm 6
15 Sept. Sunny
Sunny
25° /20° 0 mm 7
16 Sept. Partly cloudy
Partly cloudy
25° /20° 0.4 mm 6
17 Sept. Sunny
Sunny
24° /20° 5.8 mm 6
18 Sept. Sunny
Sunny
26° /20° 3 mm 6
19 Sept. Sunny
Sunny
25° /20° 2.4 mm 6
20 Sept. Patchy light drizzle
Patchy light drizzle
27° /20° 0.3 mm 7
21 Sept. Patchy rain possible
Patchy rain possible
26° /21° 0.5 mm 7
22 Sept. Sunny
Sunny
26° /21° 0 mm 7
23 Sept. Patchy light rain with thunder
Patchy light rain with thunder
24° /19° 17.9 mm 6
24 Sept. Patchy rain possible
Patchy rain possible
24° /19° 2.4 mm 5
25 Sept. Patchy light drizzle
Patchy light drizzle
24° /18° 1.4 mm 5
26 Sept. Sunny
Sunny
26° /19° 0.1 mm 6
27 Sept. Sunny
Sunny
27° /20° 0 mm 7
28 Sept. Sunny
Sunny
26° /20° 1 mm 6
29 Sept. Sunny
Sunny
25° /19° 0.1 mm 7
30 Sept. Partly cloudy
Partly cloudy
25° /18° 0 mm 7
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Important Notice
Our weather forecast for Napoli in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Napoli forecast closer to your planned date for the most up-to-date weather information.

Guide for Napoli in September

In September, Naples, Italy experiences a transition from the warm summer weather to the cooler temperatures of autumn. At the beginning of the month, the weather in Naples is generally still quite warm, with average temperatures around 25° during the day and 17° at night.

The city continues to enjoy long, sunny days with minimal rainfall, making it an ideal time to explore the historic sites and beautiful coastline.

As the month progresses, the weather gradually begins to cool down. By the end of September, temperatures in Naples tend to decrease to around 22° during the day and 14° at night.

While the days remain pleasant for outdoor activities, the evenings become noticeably cooler, signaling the arrival of autumn.

Overall, September in Naples offers a delightful blend of summer and autumn weather, making it a great time to visit for those who enjoy milder temperatures and fewer crowds. Visitors can still enjoy the city's outdoor attractions and al fresco dining while experiencing the changing seasons.

Napoli in September - FAQ

Is September a good time to visit Napoli?
Yes, September is a good time to traveling to Napoli, read more about the best time to visit Napoli.
What are the expected maximum and minimum temperatures in Napoli during September?
During September, expect a variety of temperatures with highs around 28° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Napoli during September?
In September, Napoli can expect light to moderate rainfall, totaling 39.1 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Napoli during September?
The average wind speed in Napoli during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Napoli in September?

As you prepare for your trip to Napoli in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Napoli, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

September rainfall patterns in Napoli

Explore the daily rainfall trends and prepare for Napolis September weather 💧

UV exposure in Napoli during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Napoli?

Get accurate weather forecasts for Napoli, located at latitude 40.852 and longitude 14.268. Stay updated with localized weather information tailored for Napoli.

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