Weather in Napoli for September 2025
In general, the average temperature in Napoli at the beginning of September is 29.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.1 °C by the end of September.
Napoli in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 123.3 mm.
Is September a good time to visit Napoli? check out the best time to travel to Napoli page.
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Napoli Weather September
Temperatures trend during September in Napoli
September weather in Napoli day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 29° /22° | 5.3 mm | 7 | |
| 2 Sept. | Sunny | 29° /22° | 0 mm | 7 | |
| 3 Sept. |  Partly cloudy | 29° /22° | 0 mm | 7 | |
| 4 Sept. |  Moderate rain at times | 29° /22° | 1.5 mm | 7 | |
| 5 Sept. | Sunny | 30° /22° | 1.7 mm | 7 | |
| 6 Sept. | Sunny | 30° /22° | 0.3 mm | 8 | |
| 7 Sept. |  Patchy rain possible | 30° /22° | 0.4 mm | 7 | |
| 8 Sept. | Partly cloudy | 30° /22° | 0.3 mm | 7 | |
| 9 Sept. | Patchy rain possible | 29° /22° | 6.7 mm | 7 | |
| 10 Sept. | Sunny | 29° /21° | 1 mm | 7 | |
| 11 Sept. | Sunny | 28° /21° | 0.6 mm | 7 | |
| 12 Sept. | Sunny | 28° /21° | 2.3 mm | 7 | |
| 13 Sept. | Sunny | 28° /20° | 2.7 mm | 7 | |
| 14 Sept. | Sunny | 27° /20° | 0.3 mm | 7 | |
| 15 Sept. | Partly cloudy | 27° /20° | 0 mm | 7 | |
| 16 Sept. | Partly cloudy | 27° /20° | 15.9 mm | 6 | |
| 17 Sept. | Moderate or heavy rain shower | 26° /20° | 13.6 mm | 6 | |
| 18 Sept. | Patchy rain possible | 26° /20° | 1.6 mm | 6 | |
| 19 Sept. |  Overcast | 25° /20° | 1.6 mm | 6 | |
| 20 Sept. | Patchy rain possible | 26° /20° | 0.2 mm | 6 | |
| 21 Sept. | Partly cloudy | 26° /20° | 0.2 mm | 7 | |
| 22 Sept. | Sunny | 26° /19° | 0 mm | 7 | |
| 23 Sept. | Sunny | 25° /18° | 8.9 mm | 6 | |
| 24 Sept. | Patchy rain possible | 25° /18° | 1.2 mm | 6 | |
| 25 Sept. | Sunny | 25° /18° | 23.1 mm | 6 | |
| 26 Sept. | Sunny | 25° /19° | 9.5 mm | 6 | |
| 27 Sept. |  Heavy rain at times | 26° /20° | 1.3 mm | 6 | |
| 28 Sept. | Partly cloudy | 26° /20° | 2.3 mm | 6 | |
| 29 Sept. | Sunny | 24° /19° | 10.9 mm | 6 | |
| 30 Sept. | Moderate rain at times | 25° /18° | 9.6 mm | 6 | |
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Napoli in September - FAQ
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
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Napoli
UV exposure in Napoli during September
Quick links
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.