This Paris heat wave survival guide will help you stay cool, comfortable, and prepared for summer—without letting the heat take over your entire trip.
And if you’re coming to Paris this summer, this is worth talking about.
Summer 2026 has already brought several serious heat waves to Paris, including stretches of high temperatures beginning in late June and continuing into July. Paris has activated its heat-wave plans multiple times this season, including red-alert measures in July, with extended park hours, cooling spaces, swimming sites, and other measures designed to make these very hot days a little more manageable.
So yes, it has been HOT.
And after last summer and the increasingly frequent hot spells we’ve experienced across the French capital, Paris is getting better at adapting to these periods of extreme heat. Like many European cities, however, it wasn’t designed around the kind of temperatures we’re increasingly seeing during the summer months.
That doesn’t mean you should panic or completely rethink your summer trip to Paris. It does mean that the way you plan your days matters more than usual.
I live and work here, and one of the biggest mistakes I see visitors make during a Paris heatwave is trying to keep the exact itinerary they planned months ago. Paris is an incredibly walkable city—which is wonderful until you’ve walked 15,000 steps on sun-baked pavement at 3 p.m.
My biggest piece of advice? Work with the weather instead of fighting it.
Here’s how.
What You’ll Find In This Blog:
- Why Paris Heat Waves Feel So Hot
- How to Prepare for a Paris Heat Wave
- What to Wear in Paris During a Heat Wave
- What to Pack for Summer Heat in Paris
- How to Stay Cool in Paris Without Air Conditioning
- Where to Swim in Paris During a Heat Wave
- Paris Public Swimming Pools for Hot Summer Days
- Air-Conditioned and Cool Places in Paris
- The Best Paris Parks and Green Spaces for Staying Cool
- Paris Neighborhoods and Areas to Avoid During the Hottest Hours
- How to Plan Your Paris Itinerary Around the Summer Heat
- Paris Heat Wave Tips for Families
- How to Plan a Paris Photoshoot During a Heat Wave
- Ready to Book Your Paris Photoshoot?
Why Paris Heat Waves Feel So Hot
One thing that can surprise visitors—especially if you’re coming from the United States—is that air conditioning is absolutely not a given in Paris.
Most Parisian homes still don’t have AC, and France as a whole has much lower residential air-conditioning rates than countries where central AC is standard. Even as the conversation around cooling is changing because of increasingly intense summers, air conditioning remains uncommon in Paris apartments.
The same goes for restaurants, cafés, smaller boutiques, and even some hotels.
If you’re booking accommodation in July or August, don’t assume “hotel” automatically means “air conditioning.” Check the amenities carefully. If AC is important to you, I would actually contact the hotel and confirm that your specific hotel room has functioning air conditioning.
Paris also holds onto heat. Stone buildings, zinc rooftops, pavement, and densely built streets can make the city feel particularly warm after several consecutive hot days. At night, those surfaces can continue releasing warm air long after the sun goes down. Add periods of high humidity, and it can feel warmer than the number on the forecast suggests.
And because we walk so much here, you’re experiencing that heat very differently than you would going from an air-conditioned car to an air-conditioned building.
This isn’t only a Paris issue. Heat waves increasingly affect the rest of France, although the experience can be very different depending on where you are. And if you’re continuing on to southern France, don’t automatically assume leaving Paris means escaping the heat.
The Good News About Summer in Paris:
The good news is that Paris has gotten much better at creating ways to cool down. The city now identifies more than 1,400 “cool islands”—parks, gardens, pools, museums, libraries, municipal buildings, misting areas, and other spaces where you can escape the heat.
You just have to know where to find them.
How to Prepare for a Paris Heat Wave
If your weather forecast suddenly shows 35°C/95°F—or higher—don’t wait until you arrive to start thinking about it.
A little preparation goes a LONG way.
First, rethink your schedule. You do not need to cancel everything. Instead, look at which outdoor activities involve lots of walking, direct sun, stairs, or waiting outside and move those to the morning or evening.
Then make sure your accommodation is actually equipped for the temperatures forecast. Again: verify the AC situation. If there’s no air conditioning, ask whether there are fans, shutters or blackout curtains.
And finally, give yourself permission to do less.
This is probably the most important one.
You do not need to cross six neighborhoods in one afternoon because they’re all on your list. Pick one area. Have a long lunch. Go somewhere cool. Return to your hotel for a cold shower. Head back outside when the temperature drops.
Paris isn’t going anywhere.
What to Wear in Paris During a Heat Wave
This is NOT the week for complicated outfits.
Think lightweight, breathable, loose, and comfortable.
Linen is fantastic. Cotton is fantastic. Lightweight dresses, loose trousers, skirts, and breathable shirts all work beautifully. Natural fabrics generally feel much better after a few hours outside than something heavy or synthetic.
I’d also choose shoes you genuinely know you can walk in. Heat can make feet swell, and Paris already involves more walking than most visitors expect.
And yes, bring a hat.
Wide-brimmed hats or a simple cap can make a huge difference when you’re standing somewhere with very little shade.
Need some Paris Wardrobe Inspiration?
For some general summer wardrobe inspiration, you can also read my Ultimate Summer Packing Guide for Paris.
What to Pack for Summer Heat in Paris
My Paris heat-wave essentials are fairly simple:
- A reusable water bottle
- High-SPF sunscreen
- Sunglasses
- A lightweight hat
- A small handheld or rechargeable fan
- A folding fan
- A small water mister
- Electrolyte packets if you know you’ll be walking a lot
- Lightweight layers in breathable fabrics
- Comfortable walking shoes
- A swimsuit
- A small tote for carrying everything without weighing yourself down
Paris has around 1,300 public water fountains, so a refillable bottle is genuinely useful rather than something you’ll carry around empty all day. The city also has around 175 misting fountains during hot weather.
One small note: keep sunscreen in your bag rather than applying it once in the morning and forgetting about it. Between walking, sweating, and spending hours outdoors, you’ll probably need to reapply.
And really, drink water before you feel thirsty. Carry enough water for the stretch of your day when you’ll be outside, refill whenever you have the chance, and plan on lots of water if you’re spending hours walking around the city.
How to Stay Cool in Paris Without Air Conditioning
If your apartment or hotel doesn’t have AC, think like someone who actually lives here.
During the day, close windows and keep shutters, blinds, and curtains closed, especially on windows getting direct sunlight. Opening everything because you want “fresh air” can actually invite more hot air inside when the outside temperature is higher.
Once the evening becomes much cooler, open windows on opposite sides of the apartment if possible and create cross-ventilation. The goal is to bring the cool air in while you can, then keep the heat outside once temperatures begin climbing again.
Use fans strategically rather than just pointing one directly at yourself all day. A damp cloth on the back of your neck can also feel surprisingly good, and a cold shower before bed can make sleeping much more comfortable. Even splashing your wrists or face with cold water throughout the day can help you feel refreshed.
During an official heat wave, don’t feel like you need to stay in your apartment through the hottest part of the day. This is a great time to build an indoor activity into your itinerary.
Which brings me to…
Where to Swim in Paris During a Heat Wave
This has become one of the genuinely exciting changes to summer in Paris.
Swim in the Canal Saint-Martin
Yes, really.
Swimming has returned to a designated section of the Canal Saint-Martin, and in summer 2026 the supervised swimming area at the Bassin des Récollets is open on Sundays from 2 p.m. to 6 p.m. through early September. Access is free, and the approximately 100-meter swimming zone is monitored by lifeguards. Water quality is tested, so swimming can occasionally be cancelled depending on conditions.
And please note the important part here: this applies to the official designated swimming area. Don’t simply jump into another section of the canal. Swimming outside authorized areas remains prohibited and can be dangerous.
Swim in the Seine and Bassin de la Villette
Paris also has designated summer swimming areas at Bercy, Bras Marie, and Grenelle, along with swimming at the Bassin de la Villette. For summer 2026, the City of Paris announced daily swimming at the three Seine sites through August 30, with Bassin de la Villette also open daily during the summer season.
This is one of those activities I would absolutely keep flexible. Check the City of Paris website the morning you plan to swim because water quality, storms, or other conditions can temporarily close outdoor swimming areas.
Paris Public Swimming Pools for Hot Summer Days
If canal or river swimming isn’t quite your thing, go to a public pool.
Paris has 42 municipal swimming pools, and some extend their opening hours when the city activates its heat-wave plan.
One particularly convenient summer option is Piscine Joséphine Baker, the floating swimming pool on the Seine in the 13th arrondissement, which has long opening hours throughout summer 2026.
Piscine Keller in the 15th is another useful option and reopened in June 2026; its summer schedule includes evening hours as late as 10 p.m. on weekdays.
Always check the current schedule before leaving your hotel. Pool hours in Paris can change according to school holidays, sporting events, maintenance, and heat-wave measures.
Air-Conditioned Spaces and Cool Places in Paris
Sometimes the answer is simply: go inside.
A museum afternoon during a heat wave is not giving up on your Paris itinerary. It is smart itinerary planning.
The City of Paris specifically includes air-conditioned or naturally cool museums, libraries, municipal buildings, churches, pools, and designated cooled rooms in its network of “cool islands.”
Large department stores are another practical option when you need a break. Shopping centers, cinemas, larger museums, and some newer restaurants and cafés are much more likely to have effective cooling than tiny independent shops or older buildings.
Even finding an air-conditioned coffee shop and sitting down for an hour can be a very good idea when the alternative is continuing to walk through the heat of the day.
This is where I would schedule the activities that aren’t weather-dependent:
See an exhibition. Go shopping. Have a very long lunch. Take the kids somewhere indoors. Browse a bookstore. Find one of the city’s air-conditioned spaces, sit somewhere cool, and have something cold to drink.
Then come back outside later.
You don’t get extra points for suffering through Paris at 3 p.m.
The Best Paris Parks and Coolest Places to Escape the Heat
Shade makes an enormous difference.
Paris has been actively expanding its network of cool spaces, including shaded parks, gardens, water features, misting stations, and green spaces. During certain heat alerts, the city also extends the opening hours of selected parks into the evening or even overnight.
I love Parc des Buttes-Chaumont for its greenery and large trees, although remember that it is VERY hilly—so I wouldn’t necessarily choose it for a strenuous midday walk during extreme heat.
Bois de Vincennes and Bois de Boulogne give you more room, more trees, and generally a little breathing space away from dense streets.
Smaller neighborhood gardens can also be wonderful. The point isn’t necessarily to find the “best” park in Paris. It’s to find the nearest cool place and sit down for a while. Even walking on the shady side of the street instead of in full sun makes a noticeable difference.
The City of Paris’s online map of cooling areas is genuinely useful during a heat wave, with more than 1,400 designated places to cool off around the city. It’s one of the best ways to find the coolest places near wherever you happen to be.
Paris Neighborhoods and Areas to Avoid During the Hottest Hours
I wouldn’t tell you there are entire Paris neighborhoods you need to avoid in summer.
I would avoid certain types of places between roughly noon and 5 p.m. during a serious heat wave.
Big open plazas with very little shade can feel brutal. So can long stretches along exposed riverbanks, large paved areas, queues outside major monuments, and steep walks where you’re constantly in direct sunlight.
This means I probably wouldn’t choose the hottest part of the afternoon for a long exposed walk around Trocadéro and the Eiffel Tower, climbing around Montmartre, waiting outdoors at a major attraction, or doing an ambitious cross-city walking tour.
These places aren’t “bad” in summer.
The timing is bad.
Avoid the busiest peak hours when possible. Go early, go late, or save them for another day if the forecast changes.
How to Plan Your Paris Itinerary Around the Summer Heat
This is the strategy I recommend most:
Make mornings and evenings your Paris time.
In the morning, get up earlier than you normally would. Have breakfast, go sightseeing, take your photos, walk along the Seine, explore a neighborhood—whatever is important to you.
Then slow everything down around lunch.
Have lunch indoors. Visit a museum. Shop. Swim. Return to your hotel. Take a nap. Read. Shower. Let everyone reset.
Then in the late afternoon, or around 6 or 7 p.m. on particularly hot days, head back out.
One of the benefits of summer is that the days are incredibly long. You aren’t “wasting” Paris by taking a break at 3 p.m. You can have dinner later, take an evening walk, sit in a park, or explore when the temperature is considerably more comfortable.
In fact, during extreme heat, that rhythm often makes for a much nicer trip.
Paris Heat Wave Tips for Families and Young Children
With young children, I would be even more flexible.
Children aren’t going to care that you had three monuments scheduled if everyone is hot and miserable. Kids can also have a harder time regulating body temperature, so pay attention to how everyone is feeling rather than how much of the itinerary you’ve completed.
Bring more water than you think you’ll need. Keep hats on. Reapply sunscreen. Take advantage of parks, splash areas, fountains, pools, and shaded playgrounds.
And build your day around one major thing, not five.
If you’re traveling with a stroller, remember that you’re often walking at street level over hot pavement and may spend more time outside because elevators aren’t always available in Métro stations.
On the hottest days, buses can sometimes be more practical than navigating multiple Métro connections and stairs—although cooling varies across public transportation too.
The goal is not to “see everything.”
The goal is to have a wonderful trip together.
Those are not always the same thing.
How to Plan a Paris Photoshoot During a Heat Wave
From a photographer’s perspective, this is where early mornings become your BEST friend.
And not only because of the heat.
Paris is quieter. The light is softer. Locations are less crowded. Everyone has more energy. Hair and makeup hold up better. Kids aren’t exhausted from an entire day of sightseeing.
If there’s a heat wave during your Paris photoshoot, we’ll always prioritize everyone’s comfort and adjust intelligently.
That might mean starting earlier, choosing a location with more shade, simplifying the route, taking water breaks, or moving through locations more efficiently.
My best tip is to avoid trying to squeeze a photoshoot into an already packed sightseeing day. And the best way to make a summer session feel relaxed is often to photograph early, then leave the rest of your day open.
I would much rather create a relaxed, joyful session at 7:30 in the morning than force everyone through a beautiful location at the wrong time of day.
And honestly? Some of my favorite summer mornings in Paris happen before the city fully wakes up.
A Few Final Paris Heat Wave Survival Tips
Keep an eye on the forecast, but don’t obsess over it two weeks in advance. Heat waves can change.
Check official updates once you’re here, especially if Paris is under an orange or red heat alert.
Carry water.
Eat enough.
Limit alcohol when temperatures are extreme.
Listen to your body.
And please don’t try to power through dizziness, nausea, headache, unusual fatigue, or feeling unwell just because you have a timed ticket somewhere.
The City of Paris specifically recommends drinking water regularly, cooling the body throughout the day, avoiding strenuous activity and outings during the hottest hours, and keeping living spaces cool by closing shutters during the day.
Most importantly, let Paris be slower when it needs to be.
Have the long lunch. Take the afternoon nap. Go swimming. Sit under a tree. Move your plans to 8 p.m.
You aren’t missing Paris.
You’re adapting to the version of Paris that’s actually there that day.
Ready to Book Your Paris Photoshoot?
Click HERE to book your contact us about a Paris portrait session at Katie Donnelly Photography!
If you’re planning a summer trip to Paris, I would LOVE to help you create photographs that feel like your family, your relationship, and your time here—not like you’re checking another thing off an itinerary.
Summer sessions are especially beautiful in the early morning, when Paris is quieter, the light is gorgeous, and temperatures are usually much more comfortable.
We’ll help you think through timing, locations, outfits, and all the little details that make your experience feel easy—even when Paris decides to turn the temperature all the way up.
