April in Naples suits travelers who want sightseeing in comfortable weather. Afternoons reach 67°F (19°C), the days are long, and the sun shines about six hours a day. It’s a good month for ruins, museums and a hike on Vesuvius, and a poor one for a beach day.
Rain falls on about nine days, so keep a museum in reserve for each outdoor plan. The Vesuvius ticket office and trail access also close automatically on days when the regional Civil Protection Authority issues a weather alert from orange level up.
At a glance
- Afternoon high: 67°F (19°C)
- Night low: 50°F (10°C)
- Rainy days: 9
- Rainfall: 4 inches (99 mm)
- Sunshine: 6.3 hours a day
- Sea temperature: 60°F
What is the weather like in Naples in April?
| Month | Average high | Average low | Rain | Rainy days | Sunshine per day | Sea |
|---|---|---|---|---|---|---|
| March | 62°F (16°C) | 45°F (7°C) | 3.1 in (78 mm) | 9 | 5.1 h | 58°F (14°C) |
| April | 67°F (19°C) | 50°F (10°C) | 3.9 in (99 mm) | 9 | 6.3 h | 60°F (16°C) |
| May | 75°F (24°C) | 58°F (14°C) | 2.3 in (59 mm) | 6 | 7.9 h | 66°F (19°C) |
*Long-term monthly averages.*
April in Naples is mild. The afternoon high is 67°F (19°C) and the night low is 50°F (10°C). That’s a temperature for walking all day in a light jacket, with a warmer layer once the sun goes down.
Rain falls on 9 days of the month, and the sun shines 6 hours a day on average. Daylight lasts 13 hours and 16 minutes in mid-April, so there’s time for a full morning outdoors and a museum after lunch. On a wet day, switch the ruins for a museum and keep the hike for a dry one.
May is warmer, with afternoons at 75°F (24°C), and drier, with 6 rainy days.
What to do in Naples in April
Herculaneum, the Roman town buried in 79 A.D.
Herculaneum is part of the UNESCO World Heritage Site together with Pompeii and Oplontis. Legend says Hercules founded it, and the eruption of Vesuvius buried it in 79 A.D. It receives a large number of visitors every year, so plan to arrive early in the day.
The Campania Artecard PASS, including the LITE version, gives access to the park. Holders must go to the ticket office first to activate the card. April’s 13-hour days leave room to visit in the morning and still do something else in the afternoon.
The Vesuvius Great Cono trail
The Great Cono is nature trail no. 5. It starts at the square at 3,280 feet (1,000 meters) above sea level in Ercolano. The round trip takes up to 2 hours on the shortest route and 3 hours on the longest. The high route on the crater summit is closed to visitors for safety and environmental protection.
Hikers are limited to 360 per hour. On narrow points or ramps, the group going uphill has priority over the group coming down. The ticket office and trail access close on orange-alert days, so check the weather before driving up in a rainy spell. The square has 4 parking areas on its right side.
Castel Nuovo, MANN and Gallerie d’Italia on a rainy day
Castel Nuovo, also called Maschio Angioino, is a castle, museum and picture gallery. It houses the Museo Civico and hosts exhibitions. The museum itinerary includes the Sala dell’Armeria, the Cappella Palatina (or Santa Barbara) and the first and second floors of the southern curtain.
The Museo Archeologico Nazionale di Napoli (MANN) is at Piazza Museo 18/19. Gallerie d’Italia is at Via Toledo 177. There, visitors can use a physical or virtual audio guide through the app, or be guided by a cultural mediator. Bring headphones and a charged phone.
Pompeii and its themed itineraries
Pompeii Artebus, a shuttle service, connects all the sites. That helps when you want to combine several stops in one day without a car.
The themed itineraries Civic Pompeii and Daily Pompeii last about 1.5 hours and cost €8 plus the entrance ticket. They fit well into a morning, leaving the afternoon free.
Boat days to Procida and Capri
SNAV hydrofoils connect Naples to Procida with daily departures all year round. Other SNAV boats link Procida to Ischia, arriving at the Casamicciola port. That makes a day or an overnight on the islands easy to plan.
A Capri Experience boat excursion stops at the Blue Grotto. The sea is 60°F in April, so bring a layer for the deck.
Is Naples busy in April?
The city’s tourism is constantly growing, and the city has said it expects tourist flows to keep rising. This year there are 26 patron saint festivals, up from 22 last year.
Herculaneum and Naples’ main sights draw large numbers of visitors, so book rooms ahead, especially for a weekend.
Tourist tax applies per person per night, up to a maximum of 14 consecutive days. Non-residents over 14 years of age staying in accommodation in Naples owe it. The 2026 rates are €1 higher than the base values in force at the start of the year.
Can you swim in Naples in April?
The sea near Naples averages 60°F in April. That’s a monthly average, and it’s cold for a long swim. May’s average reaches 66°F, so swimming is easier a month later.
SNAV hydrofoils run daily to Procida all year, and a Capri boat excursion stops at the Blue Grotto. These are good ways to be on the water in April without planning a swim.
What to pack for Naples in April
April asks for layers: mild afternoons, cool nights and a fair chance of rain. Comfortable shoes matter most, because the main outings are ruins, a mountain trail and museum floors.
- A warm layer for evenings, since nights drop to 50°F (10°C).
- A light rain jacket or compact umbrella for the 9 rainy days.
- Sturdy walking shoes for the Great Cono trail, which takes 2 to 3 hours round trip.
- Sunglasses and a hat for Herculaneum, with 6 hours of sun a day.
- A windproof layer for the boat to Procida or Capri, with the sea at 60°F.
- Headphones and a charged phone for the Gallerie d’Italia audio guide.
What to know before visiting Naples in April
Check the weather before a Vesuvius day. The ticket office and trail access close automatically on days of orange alert or higher. At Herculaneum, Artecard holders must activate the card at the ticket office.
Tourist tax is due from non-residents over 14 staying in accommodation, per person per night, for up to 14 consecutive days.
Is April a good time to visit Naples?
Yes, April is a good month for travelers who want sights, museums and a mountain hike in mild weather. It’s less good for swimming, with the sea at 60°F and rain on about nine days.
Compared with March, April is warmer by 5°F (3°C) and has more sun. Compared with May, it’s cooler and wetter, with a sea that reaches 66°F in May. Shifting four weeks later brings warmer afternoons and fewer rainy days.
If you want to swim, choose May. If you want to hike Vesuvius or walk the ruins without heat, April works well.
Sources
- parconazionaledelvesuvio.it (https://www.parconazionaledelvesuvio.it/visita-il-parco/i-sentieri-del-vesuvio/il-gran-cono/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/tipi_evento/raduno-di-comunita/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/novita/napoli-aggiornate-le-tariffe-dellimposta-di-soggiorno-per-il-2026/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/maschioangioino), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/novita/presentato-programma-feste-patronali/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/vivere-il-comune/eventi/secondigliano-tra-corti-e-cortili/), checked 2026-10-30
- snav.it (https://www.snav.it/en/destinations/ischia-2/procida-casamicciola-2), checked 2026-10-30
- open-meteo.com (https://open-meteo.com/en/docs/historical-weather-api), checked 2026-10-30