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Italy in August: Rome Heat, Warm Seas and Venice, Florence and Milan Sights

August suits travelers who want sun, a warm sea and big museums in one trip. Rome’s afternoons reach 89°F (32°C), and the sea off Venice, Naples and Palermo runs between 78°F and 81°F.

The catch is the heat in the cities, so the open-air sights are best done early. Some doors also keep set days: the Domus Aurea opens only Friday to Sunday, and the Sforza Castle museums in Milan close on Mondays.

The Palladian Basilica of Vicenza, in summer
The Palladian Basilica of Vicenza, in summer · Illustration

At a glance

  • Rome, afternoon high: 89°F (32°C)
  • Rome, night low: 68°F (20°C)
  • Rome, sunshine: 10 hours a day
  • Milan, high and low: 86°F (30°C) and 66°F (19°C)
  • Milan, rainy days: 5.5
  • Sea: Venice 78°F (26°C), Naples 79°F (26°C), Palermo 81°F (27°C)

What is the weather like in Italy in August?

Month Average high Average low Rain Rainy days Sea
July 88°F (31°C) 67°F (19°C) 1.7 in (44 mm) 4 78°F (25°C)
August 89°F (32°C) 68°F (20°C) 2.3 in (59 mm) 6 78°F (26°C)
September 80°F (27°C) 61°F (16°C) 2.7 in (68 mm) 6 73°F (23°C)

*Long-term monthly averages.*

August in Italy is hot and bright. Rome reaches 89°F (32°C) in the afternoon and only cools to 68°F (20°C) at night, so evenings stay warm enough for a terrace dinner in a light shirt. Milan is a little cooler, at 86°F (30°C) by day and 66°F (19°C) at night.

Rome gets about ten hours of sun a day, which is a reason to plan the Forum, the Palatine and any climb for the morning. Milan has five or six rainy days in the month, so a short shower is possible there. Carry a light rain layer on city days, and plan indoor museums for the middle of the day.

Rome in July is almost the same, at 88°F (31°C) by day and nearly eleven hours of sun. September is the clear change: Rome drops to 80°F (27°C) with a 61°F (16°C) night, and has six rainy days.

Where to go in Italy in August

Rome

The Colosseum, Roman Forum and Palatine share one 24-hour ticket, which suits a day that starts early and ends before the afternoon heat. The Vatican Museums ticket, with the Sistine Chapel, is valid only on the day it is issued, so choose that day carefully. The Trevi Fountain is the most famous of the Roman fountains and makes an easy evening stop when nights are warm.

Florence

Piazza del Duomo holds the Cathedral, Brunelleschi’s Dome, Giotto’s Bell Tower, the Baptistery, the Crypt of Santa Reparata and the Opera del Duomo Museum. The Uffizi is a good indoor stop when the afternoon is at its hottest. The Boboli Gardens sit directly behind Pitti Palace and are better for a morning or late-day walk.

Venice

The Doge’s Palace and the Rialto Bridge are the first two stops. The Rialto Bridge visit is free and takes about 20 minutes. The Gallerie dell’Accademia hold Venetian painting in Dorsoduro. The sea near Venice averages 78°F (26°C) in August, so the lagoon’s warmth is part of the month.

Murano, Burano and Torcello

The Museo del Vetro is on Murano, and the Museo del Merletto on Burano. Torcello has a small square with the throne of Attila, the Museo di Torcello, the 14th-century Church of Santa Fosca and the Cathedral of Santa Maria Assunta. Together they make a lagoon day on the water, with sea air to offset the city heat.

Milan

The Duomo stands on Piazza del Duomo, and the Last Supper Museum is on Piazza di Santa Maria delle Grazie. La Scala has its box office on Piazza della Scala. The Sforza Castle museums are closed on Mondays, so plan Milan around that. Milan is a few degrees cooler than Rome in August, at 86°F (30°C).

Pompeii and Vesuvius

A shuttle service, Pompeii Artebus, connects all the sites. The Vesuvius Great Cono trail, nature trail no. 5, starts from a square at 3,281 feet (1,000 meters) above sea level in Ercolano. The sea near Naples is 79°F (26°C) in August, a good reward after a hot ruin walk.

What to do in Italy in August

Colosseum, Forum and Palatine on one 24-hour ticket

One ticket gives a single entrance to the Colosseum, without the arena, and a single entrance to the Roman Forum and Palatine areas. With afternoons at 89°F (32°C) in Rome, start at the Colosseum when it opens and move to the shadeless Forum early.

The free MyColosseum app has interactive audio guides in Italian and English. The Y&Co app has audio-video guides in nine languages. The Domus Aurea is visited on Fridays, Saturdays and Sundays, with a visit every 15 minutes from 9:00 a.m. to 4:30 p.m. It is entered from via della Domus Aurea.

Uffizi Gallery and Boboli Gardens in Florence

The Uffizi occupies the first and second floors of a building made between 1560 and 1580 to a design by Giorgio Vasari. Its paintings include Giotto, Botticelli, Leonardo, Michelangelo and Caravaggio, and it also holds Medici statues and busts, Roman copies of lost Greek sculptures.

The Boboli Gardens have grottos, the most important by Bernardo Buontalenti, and fountains such as Neptune and the Ocean. Visit the Uffizi’s indoor rooms in the middle of the day, and the gardens later or earlier, when shade matters.

Palazzo Vecchio and its tower in Florence

Palazzo Vecchio, also called Palazzo della Signoria, houses Donatello’s Judith, Bronzino’s paintings in the Chapel of Eleonora and Michelangelo’s Genius of Victory. These rooms give a cooler, indoor visit.

The tower is 312 feet (95 meters) high and gives a spectacular view of Florence from the top and during the ascent. Go early in the day, with water, if you choose the climb.

Doge’s Palace and the Rialto Bridge in Venice

The St. Mark’s Square Museums ticket covers the Doge’s Palace, Museo Correr, the National Archaeological Museum and the Monumental Rooms of the Marciana National Library. The Doge’s Palace entrance is at Porta del Frumento, Piazzetta San Marco. The MUVE app audioguide is included in the ticket price.

The Secret Itinerary tour covers the rooms where Venetian administrative bodies worked. The Doge’s Hidden Treasures tour goes through the Doge’s private rooms next to the Basilica. The Rialto Bridge was built from 1588 to 1591 and has 24 shops along two covered ramps. Cross it in early morning or evening.

Lace and lagoon on Burano, with Mazzorbo

On Burano, Piazza Galuppi is where you find the Church of San Martino and the Museo del Merletto, at number 187. By reservation, you can watch lace-makers’ working techniques live, so book that visit ahead.

A long ramp joins Burano to Mazzorbo, where there is a park to enjoy. It is an easy walk on a warm day, with the lagoon beside you.

Is Italy busy in August?

Tickets such as the Vatican Museums entry are valid only on the day issued, so fix the date before you travel. The Domus Aurea opens only Friday to Sunday, and the Sforza Castle museums in Milan close on Mondays.

Can you swim in Italy in August?

Yes. The sea runs between 78°F and 81°F off Venice, Naples and Palermo. These are monthly averages, so a given morning can be cooler or warmer, but swimming is comfortable in all three.

Palermo has the warmest sea of the three in August.

What to pack for Italy in August

August asks for light clothes, sun protection and comfortable shoes for stone streets and ruins.

  • Light, breathable clothes for Rome’s 89°F (32°C) afternoons and 68°F (20°C) nights.
  • A hat and sunscreen for the ten hours of sun a day in Rome.
  • Sturdy shoes for the Vesuvius trail, which starts at 3,281 feet (1,000 meters).
  • A phone and earbuds for the free MyColosseum audio guide.
  • A water bottle for the long walks at the Forum and Palatine.

What to know before visiting Italy in August

Several closings shape a week in August. The Domus Aurea opens only on Fridays, Saturdays and Sundays.

The Forum Pass SUPER gives access to the Roman Forum, Imperial Fora and Palatine, without the Colosseum, so pick the ticket that matches your plan.

Is August a good time to visit Italy?

Yes, especially for travelers who want a warm sea along with museums and ruins. August gives Rome 89°F (32°C) afternoons, ten hours of sun and seas near 80°F.

Compared with July, the weather is almost the same: Rome is 88°F (31°C), and the sea near Venice is 78°F. September is cooler, with Rome at 80°F (27°C), more rain, and a sea about five degrees cooler near Venice, at 73°F (23°C).

If you want swimming, August is a good pick, with Palermo’s sea at 81°F (27°C). If you want gentler sightseeing heat, September is the better month.

Sources
  • ncei.noaa.gov (https://www.ncei.noaa.gov/products/wmo-climate-normals), checked 2026-10-30
  • colosseo.it (https://colosseo.it/en/opening-times-and-tickets/), checked 2026-10-30
  • palazzoducale.visitmuve.it (https://palazzoducale.visitmuve.it/en/visitor-information/), checked 2026-10-30
  • visit.venice.it (https://visit.venice.it/things-to-do/rialto-bridge), checked 2026-10-30
  • comune.venezia.it (https://www.comune.venezia.it/sites/comune.venezia.it/files/page/files/Itinerario_%20Burano%20Torcello%202017%20ITA.pdf), checked 2026-10-30
  • visit.venice.it (https://visit.venice.it/experiences/venice-carnival), checked 2026-10-30
  • milanocastello.it (https://www.milanocastello.it/it/visita/orari-biglietti-abbonamenti-e-card), checked 2026-10-30
  • uffizi.it (https://www.uffizi.it/en/the-uffizi), checked 2026-10-30

Where to go, and when — with the homework done. Warm guides built on thirty-year climate data, official crowd numbers and honest verdicts.