Ercolano Weather in September

September in Ercolano brings high temperatures, with highs of 25°C (77°F) and nights dropping to 20°C (68°F). Rainfall is on the higher side this month, averaging around 97 mm (3.8 in), so keep a rain jacket handy.

Rainfall in Ercolano in September

Historically, the month has about 9 days of rain, averaging 97 mm (3.8 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Ercolano in September

September is a good time to be in Ercolano. Days are perfect, reaching 25°C (77°F), with nights around 20°C (68°F). September marks the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 20°C (68°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Ercolano in September

The month enjoys around 234 hours of sunshine, creating mostly sunny days with good weather conditions.

Average water temperature in September

With water at 25°C (77°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Ercolano.

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For a detailed overview over the year and the best time to visit Italy, check out our Ercolano's climate page.

Ercolano Temperature in September

Min Temperature 20°C (68°F)  

Max Temperature 25°C (77°F)  

Water Temperature 25°C (77°F) *  

Chance of Rain 29%  

Precipitation 97 mm (3.8 in)  

Rainy days 9 days  

Humidity 73% *  

Sunshine 234 hours *  

Percentage Sunshine *  

* Data from: Naples, Italy (10 KM, 6 Miles).

What to Wear in Ercolano in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Ercolano in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Italy, check out our Ercolano's climate page.

More climate data for Ercolano

Temperature Rainfall Sunshine Humidity Water Temp

See the full Ercolano climate overview or explore weather in Italy.