Rome Heatwave 2026: How Hot It Gets, Heat Alerts & How to Cope

Last updated: Jul 29, 2026

Rome in high summer is hot, and it is getting hotter. If you are planning a trip to the Eternal City in July or August, expect daytime highs around 31 to 32°C on an average day and spikes well past 38°C during a heatwave.

The city’s stone, marble and asphalt soak up the sun and release it late into the night, so the heat lingers long after sunset.

This guide covers how hot Rome really gets, how Italy’s official heat-warning system works, and the practical tricks that make sightseeing bearable when the mercury climbs. When you are ready to plan, you can compare flights to Rome and browse hotels in Rome on Wego, then filter for the one amenity that matters most in a Roman summer: air conditioning.

As of late July 2026, Rome has moved into its fourth heatwave of the summer, with the city’s bollino climbing from yellow to orange (level 2) on 29 July as temperatures build toward a peak of 39 to 40°C over the following days. That follows an earlier spell in late June when Rome and more than a dozen other Italian cities sat under the top-level red alert.

For the wider national picture, see our companion guides to the Italy heatwave and red alerts and Italy summer weather month by month.

How Hot Does Rome Get in Summer?

Rome’s summer is classically Mediterranean: hot, dry and mostly sunny, with very little rain from June through August. The catch is the humidity and the lack of breeze, which make the real-feel temperature climb higher than the number on the thermometer.

Average July and August temperatures

Based on the official 1991 to 2020 climate normals for the Roma Ciampino station, here is what a typical Roman summer looks like.

July in Rome

Average high around 31°C, average low around 19°C, with long sunny days and humidity often near 70 percent.

August in Rome

Average high around 32°C, average low around 20°C. August is the hottest, stickiest month, and the one when many Romans leave the city.

Those are the averages. During a heatwave, afternoon highs in the city regularly push into the high 30s, and the nights stay warm.

Meteorologists call a night that never drops below 20°C a “tropical night,” and Rome sees plenty of them in a hot spell, which is one reason air conditioning is worth paying for.

Rome’s record heat

Rome’s highest reliably recorded temperature is 41.8°C, set on 18 July 2023 at the Roma Ciampino weather station during the “Cerberus” heatwave. That reading broke the city’s previous benchmark of 40.7°C from the deadly European heatwave of 2003.

For context, Italy’s national record is 48.8°C, measured at Floridia in Sicily on 11 August 2021. In July 2026 the town of Casteltermini in Sicily came close, hitting 48.4°C, but the record itself still stands, and Rome runs hotter than most of Italy without approaching the southern extremes.

Italy’s Heat-Warning System: The “Bollino” Explained

Italy issues a daily colour-coded heat warning called the bollino, and Rome is one of 27 cities covered. The word means a little stamp or sticker, and it refers to the heat-health alert issued by Italy’s Ministry of Health.

The bulletin (the bollettino ondate di calore) runs from May to September and forecasts risk 24, 48 and 72 hours ahead, updated Monday to Friday. It rates the danger heat poses to human health, so it is a more useful planning tool than a plain weather forecast.

The four bollino levels

Level 0: Green

No significant risk from the heat. A normal summer day.

Level 1: Yellow

A pre-alert. Weather conditions that could become a health risk in the coming days are on the way.

Level 2: Orange

Conditions that may pose a health risk to vulnerable groups: the elderly, very young children, pregnant women and people with chronic illness.

Level 3: Red (bollino rosso)

The highest level. Extreme heat that poses a risk to the whole population, including healthy, active adults. A red alert is only declared when there are three or more consecutive days of high-risk conditions.

A bollino rosso is your cue to change plans. On the highest-alert days:

Move sightseeing to early morning or evening.
Stay indoors through the worst of the afternoon.
Check on anyone in your group who is older or unwell.

Rome moved through yellow and into orange alert (level 2) in the last days of July 2026 as the season’s fourth heatwave built, with forecasters expecting highs near 39 to 40°C by the following weekend. Regional authorities also extended a midday outdoor-work ban (12:30pm to 4pm on high-risk days, in force until 15 September) covering construction, agriculture, delivery riders and municipal maintenance crews, a sign of how seriously Lazio treats the risk.

Check the daily bollino for Rome on the Health Ministry’s official heat-wave portal before you head out, since the level can change day to day.

Surviving Rome in the Heat

Rome rewards travellers who work with the heat instead of fighting it, and a few local habits make all the difference.

Drink from the nasoni

Rome has roughly 2,500 free public drinking fountains, known affectionately as nasoni (“big noses”) for their curved metal spouts. The water is the same clean, cold supply that reaches Roman homes, and it is safe to drink.

Carry a refillable bottle and top it up as you walk. To find the nearest one, ACEA (Rome’s water utility) runs a free app called Waidy WOW that maps fountains and water points across the city.

Time your sightseeing

The single best heat hack in Rome is timing. Start outdoor sights at opening time, around 8 to 9am, or save them for the late afternoon and evening when the light softens and the crowds thin.

The hours from roughly noon to 4pm are for lunch, a shaded piazza, a long gelato or a hotel siesta, the way Romans have always done it.

Know where the shade is not

Rome’s headline sights offer surprisingly little shade. The Colosseum, the Roman Forum and St Peter’s Square are almost entirely exposed, with sun beating off ancient stone and open travertine.

Book timed-entry tickets for early or late slots, wear a wide-brimmed hat, and do not attempt the Forum at midday in a heatwave. The Palatine Hill has a few pockets of pine shade, and the Villa Borghese gardens are a genuinely leafy escape.

Duck into cool interiors

Stone churches stay naturally cool, and Rome has hundreds of them, most free to enter. The Pantheon, the great basilicas and countless neighbourhood churches offer a few degrees of relief and are worth the visit in their own right.

A word of caution on museums: not every big attraction is air-conditioned. The Vatican Museums are largely not air-conditioned, and the crush of visitors makes the galleries hotter still.

The one reliably cool room is the Gallery of Tapestries, climate-controlled to protect the artworks and sitting right on the route to the Sistine Chapel, so linger there. In summer the Vatican Museums often run Friday evening openings, which are cooler and less crowded than midday; check current hours on the official Vatican Museums site before booking.

Plan around Ferragosto

Ferragosto, the public holiday on 15 August, is when Rome empties out and many Romans head for the coast. From roughly 10 to 20 August, plenty of small shops, family trattorias, bakeries and neighbourhood services close for their annual break.

Major tourist sites, big supermarkets and central restaurants generally stay open, though the Vatican Museums close on 14 and 15 August. If you visit around Ferragosto, expect a quieter, sleepier city and book restaurants ahead.

Getting Around Rome in the Heat

Rome’s public transport comfort in summer is a mixed bag, and it is run by ATAC across three Metro lines: A, B and C. Newer trains and Line C have air conditioning; older Line B trains and many buses do not, and they can get very warm in the afternoon.

A few practical notes for hot days:

Where you have a choice, favour an air-conditioned Metro over a non-AC bus for longer hops.
In August and on Sundays, buses and Metro run less frequently, so waits in the sun are longer. Plan extra time.
Rome’s historic centre is compact and walkable. Early morning and evening strolls in the shade of narrow streets often beat a stifling bus.
For longer distances or with tired kids, a metered taxi or a licensed ride app gives you guaranteed air conditioning.

How to Stay Safe in a Roman Heatwave

Heat is a genuine health risk in Rome, especially during a bollino rosso, and the advice from Italy’s Health Ministry is straightforward.

Hydrate constantly. Drink water before you feel thirsty, and use the nasoni to refill. Go easy on alcohol and caffeine, which dehydrate you.
Avoid the midday sun. Stay indoors or in shade from late morning to mid-afternoon on the hottest days.
Dress for it. Light, loose, light-coloured clothing, a hat and high-SPF sunscreen.
Watch for warning signs. Dizziness, headache, nausea, cramps or confusion can signal heat exhaustion. Move to a cool place, sip water and rest. Seek medical help if symptoms worsen.
Check on the vulnerable. Older travellers, young children and anyone with a health condition feel the heat first and hardest.

Italy’s general emergency number is 112. Pharmacies (look for the green cross) are widespread and staff can advise on minor heat-related issues.

When to Go, and Booking Tips

The shoulder months of late April to early June and mid-September to October give you Rome’s warmth and long days without the peak-summer intensity, if you can choose your dates. July and August are hottest and busiest, but they are also when many travellers can get away, so they remain hugely popular.

Whenever you go, two booking choices make a Roman summer far more comfortable.

Book a hotel with air conditioning

In a Roman July, this is essential for sleeping through a tropical night. When you browse hotels in Rome, confirm the room has working air conditioning.

Consider a place with a courtyard, pool or rooftop for evening relief. If you are touring more of the country, you can widen the search to hotels across Italy.

Keep your flights flexible

Heatwaves occasionally disrupt travel, and plans change. Compare flights to Rome and flights to Italy on Wego to find fares and routes that suit your dates.

Italy’s flag carrier, ITA Airways, flies into Rome Fiumicino, its main hub, alongside a long list of international and low-cost airlines.

For a broader look at how the season is shaping up across the continent, our Europe heatwave overview tracks warnings and safety guidance beyond Italy.

Frequently Asked Questions

Is it safe to visit Rome during a heatwave?

Yes, with sensible precautions. Millions visit Rome in summer. Time your sightseeing for early morning and evening, stay hydrated using the nasoni, keep to shade and air conditioning during the hottest hours, and take a bollino rosso seriously by scaling back outdoor plans.

How hot does Rome get in July and August?

Average highs are around 31 to 32°C, but heatwaves regularly push afternoon temperatures into the high 30s, and the summer of 2026 has already seen several distinct heatwaves. Rome’s record is 41.8°C, set in July 2023.

What does a bollino rosso mean for tourists?

A red alert (bollino rosso) is Italy’s highest heat warning and signals a health risk to everyone, not only vulnerable groups. For visitors it means avoiding the midday sun entirely, drinking plenty of water, and moving activities to cooler parts of the day.

Is Rome’s public transport air-conditioned?

Partly. Newer Metro trains and Line C have air conditioning, but older Line B trains and many buses do not and can be uncomfortably hot in summer.

Should I avoid Rome during Ferragosto?

Not necessarily. Around 15 August the city is quieter and many small businesses close, but major attractions and central restaurants stay open. It can be a peaceful time to visit if you plan ahead and book restaurants in advance.

Sources

Disclaimer

Wego strives to ensure all information presented in this article is accurate and up to date at the time of publication. Travel policies, prices, visa requirements, and conditions can change rapidly. We strongly recommend verifying critical details with official sources before making travel decisions. Wego does not accept liability for any inaccuracies, oversights, or changes that may occur after publication.