Travelling Europe During the 2026 Heatwave: How to Adapt Without Ruining Your Trip

Europe is having a summer nobody will forget. Around the June solstice, a stalled heat dome dragged Saharan air north and pushed temperatures 14 to 18°C above the seasonal average, peaking at a savage 45.1°C in Andújar, southern Spain, on 22 June. Researchers are now calling it the most severe heatwave ever recorded on the continent (The Washington Post). If you've already got a trip booked, here's the reassuring bit: you almost certainly don't need to cancel it. You do need to travel differently, though. This is a practical guide to travelling through Europe in a heatwave, written to help you keep the holiday and skip the trip to A&E.

Where the heat is, and how hot (late June 2026)

The worst of it has sat over the Iberian Peninsula and France. Spain, Portugal and France have seen highs in the low to mid 40s°C. France put 49 of its 96 mainland departments under the top heat warning, and the night of 22 to 23 June was the country's hottest since 1947. Back home, the Met Office issued a red extreme heat warning of its own, with temperatures of at least 39°C in parts of England and Wales (CNN).

By 27 June the heat was shifting north and east rather than simply easing off. Germany was forecast to hit close to 41°C, Vienna around 39°C on the 27th and 28th, and Croatia's weather service had put much of the Adriatic coast under a red alert, with the peak expected by 28 June. The list of countries affected now runs from Portugal and Spain, through France, the Low Countries, Germany, Switzerland and Austria, down into Italy and the Balkans.

The practical point is this: the picture across Europe is changing by the day, so don't plan around a headline you read last week. Check the forecast and the alert level for your specific city the night before, and again first thing each morning.

You probably don't have to cancel

Worth saying plainly, because the headlines are frightening: a city break in 40°C heat is uncomfortable, not impossible. What actually needs rethinking is anything that turns dangerous in extreme heat: a full day of sightseeing on foot, a long hike, a day at a theme park, or anything else that leaves you out in the open through the middle of the day. Most travel health guidance for this heatwave says much the same thing: you don't necessarily need to cancel, but you do need to reshape your day until things cool off. The difference between a wretched trip and a good one comes down almost entirely to timing.

Flip your day around: the change that matters most

If there's one thing to remember about coping with the heat right now, it's this: do your outdoor sightseeing at the edges of the day, and stay indoors through the worst of it.

The hottest stretch of the day is roughly 11am to 5pm, and most official advice is to stay out of direct sun between 11am and 3pm especially. So turn the usual tourist routine on its head. The cathedral square, the old town, the viewpoint, the coastal path: all of it is nicer, cooler and much quieter at 8am or 8pm than it is at 2pm.

A heat-smart shape for your day

• Before 10am: tackle the big outdoor sights. Walk the old town, climb the tower, do the market, take your photos. The light is gorgeous and the air is still bearable.
• 11am to 5pm: head indoors, or at least into the shade. Museums, churches, galleries, a long lunch somewhere with air conditioning, a nap back at the hotel. Treat the middle of the day as downtime, the way southern Europe has always done.
• After 6pm: come back out. This is the best window of the day in a heatwave: golden hour, a drink before dinner, a slow meal, a walk along the river as the city finally cools down.

You don't lose anything by doing this. You just see the outdoor sights when it's pleasant to be outside, and save the indoor ones for when being inside actually feels like a relief.

Save the museums and the shade for the middle of the day

The flip side of front-loading the outdoor stuff is having somewhere good to be at 2pm. Build your midday around air conditioning and shade, deliberately:

• The big indoor museums and galleries are usually air-conditioned, and they're exactly the places you want to spend a few hours in anyway.
• Churches, cathedrals and old stone buildings stay remarkably cool inside, and most are free or cost next to nothing.
• A long, unhurried lunch isn't wasted holiday time in a heatwave, it's the smart move. Find somewhere cool, eat slowly, get some fluids back in you.
• Parks with proper tree cover, covered markets and shopping arcades all buy you shade for the times you do need to be out and about.

This is also where Travolp's Lens comes into its own. When the plan has you inside a museum at midday, point your camera at a painting or a statue and get a short audio guide in your own language, so those indoor hours are genuinely interesting rather than just an escape from the sun.

Drink enough, dress for it, and know the warning signs

The unglamorous basics are what actually keep you on your feet. None of it is complicated, but in a record heatwave it's the difference between being fine and ending up in hospital.

• Drink water often, more than you think you need to, and go easy on alcohol and caffeine, both of which dehydrate you.
• Carry a refillable bottle. Plenty of European cities have free public fountains: Rome's nasoni run cold all day, and Paris has hundreds dotted about.
• Dress for it: loose, light-coloured clothing, a wide-brimmed hat, sunglasses and sun cream topped up through the day.
• Keep an eye on the people you're with. Older travellers, young children, pregnant travellers and anyone with a heart or breathing condition are most at risk.
• Know the warning signs. If someone feels faint or confused, stops sweating, or their temperature spikes, get them somewhere cool, cool their skin down with water and call the emergency services. The number is 112 across the EU. It also works from a UK phone, the same as 999.

Watch the official heat health warnings

This isn't a normal hot week. The World Health Organization has called it a health emergency, and red alerts have been in force across France, Spain, Italy and the UK (Time). National weather services colour-code their warnings (orange and red are the serious ones), and plenty of cities issue their own guidance too: cooling centres, revised opening hours, even the closure of some outdoor sites.

Take them seriously. A red alert is your cue to drop the ambitious plan rather than push through it, and to lean hard into the museum-and-long-lunch version of the day.

Plan for the heat, then re-plan when it spikes

This is where the planning tool you use actually matters. A static PDF itinerary can't react to a heat dome. Something built around live weather can.

When you build a trip in Travolp, it pulls a real weather forecast for the near-term dates and works it into the plan, so an itinerary generated for this week starts from the fact that the afternoons are dangerous, rather than from a generic sightseeing template. (If you've never built a trip this way before, our step-by-step guide to planning a trip with AI walks through the whole thing.)

The bigger advantage shows up on the ground, when the forecast spikes halfway through the trip. Instead of rebuilding your day by hand, you just tell the chat what's going on:

• "Tomorrow's hitting 42, move all the outdoor stops to before 10am."
• "Too hot to walk about this afternoon, swap the park for an indoor museum near the hotel."

The plan reshuffles itself around the heat, much as a local friend would if you asked them which places had air conditioning. That kind of on-the-fly re-planning is the whole point of a travel companion rather than a planning toy (we compare the two in our rundown of the best AI travel planning apps for 2026).

One more heat-specific tip: if you're doing the early-morning sights before the day warms up, you'll often be out and about before you've sorted out signal. Download your map region and cache the trip the night before on the hotel Wi-Fi, so the 8am walk round the old town still works even offline (here's how offline mode works).

If your dates are flexible

Most people's dates aren't flexible, but if yours are, you've got options. Northern Europe has largely escaped this heat, so Norway, Iceland, Finland and Scotland are genuinely cooler places to spend the summer right now. And because this heatwave keeps moving, shifting a southern trip by a few days, or swapping the order of two cities so you hit the hottest one after the peak has passed, can make a real difference. That kind of adjustment is easy when your plan is something you can reorder on the fly, and a real headache when it's locked in ink.

The bottom line

The 2026 heatwave is historic, and it deserves respect. But travelling through Europe in a heatwave is mostly a question of timing, not of cancelling. Front-load the outdoor stuff to the early morning, retreat to museums and shade through the dangerous midday hours, come back out in the evening, drink far more water than feels necessary, and watch the official warnings the way you'd watch an incoming storm. Build the trip around the weather, and re-plan the day whenever it spikes.

Do that, and the heat turns into a constraint you work around, not the thing that ruins the trip. When you're ready, download Travolp or sign in, build a plan that knows what the weather's doing, and carry a companion that can reshuffle the day the moment the thermometer spikes.