Weather in Naples in July

A good month. July works. It is not the peak, but nothing about it fights you. Highs average 33 °C, lows 21.7 °C, and rain falls on 5 days — nothing in the month is working against you.

July ranks 8 of 12 in Naples: past the worst of the year but short of May, which is the month to book if the dates are open.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 33 °C days and 21.7 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 8 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 40.6 °C and the coldest night fell to 15.6 °C.

July is moderately variable: 2 mm in the driest year against 55 mm in the wettest, around an average of 25 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 6.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 58%.

How July sits in the year

Temperatures hold steady either side: 29.4 °C in June, 33 here, 33.3 in August. Nothing about the timing within the month matters much.

Daylight in July

July is at or near the longest days of Naples's year: 14.8 hours of daylight, losing 0.6 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 26 °C in July — warm enough to stay in as long as you like. This is the warmest the water gets all year.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Naples versus nearby

If Naples is one option among several, the nearby comparison is worth making. Positano is a better bet in July — 6.8 °C cooler, the same number of rain days. Rome is close enough to be a coin toss — within a degree on temperature, 1 day less rain.

So: July is a compromise. May is 19 points better and is what Naples is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Naples

See all twelve months in Naples, or where else to go in July.