Naples weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Excellent
Best time to visit: May – July, September
What is the weather like in Naples in July?
In July, Naples is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sea averages 25.5 °C – pleasant for swimming. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 12 mm in total. On about 13 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Naples.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 51 min05:43 – 20:34
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 20 daysdew point 18 °C or more
- Wind
- 18 km/haverage daily peak
- Cloud cover
- 17 %on average
- Hot days
- 13 days30 °C or more
- Time zone
- UTC+2Europe/Rome
How the score comes together
- Temperatureweight 50 %71 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Naples in July: quick answers
Is Naples hot in July?
Yes. In July, Naples is hot: daytime highs average 29 °C and nights stay around 21 °C. On about 13 days the thermometer climbs to 30 °C or more.
Can you swim in Naples in July?
Yes. In July the sea averages 25.5 °C – pleasant for swimming.
Does it rain much in Naples in July?
Rain is rare: about 2 days bring 12 mm in total.
Naples month by month
The whole year in NaplesAll destinations: ItalyWhere to go in JulySea temperature in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)