Paris in July

If possible avoid staying in places without air conditioning in July or August.

I wouldn't risk it, but YMMV.

Paris weather -- July 2025 from timeanddate.com

Paris weather -- July 2024 from timeanddate.com

Paris weather -- July 2023 from timeanddate.com

Paris weather -- July 2022 from timeanddate.com

Paris weather -- July 2021 from timeanddate.com

AC would be an absolute must in July. We’ve been there twice in June. Both times it was hot (high 80s) and HUMID. We retreated to our lodging during the hottest part of the day for a break in the ac. It was blissful.

We made the mistake of visiting Paris in early August once. A mistake that wasn't repeated. Our hotel AC could barely keep the room tolerably warm, never mind keeping it cool. I'd rather eat glass than visit Paris in summer without AC

We were in France, June 2025, including Paris on June 24-28. Temperatures were in the 90s for most of the time we were there - miserable unless you are used to it. AC is an absolute must unless you are comfortable sleeping in a 90 degree room. Opening the windows is usually not an option because most windows lack screens.

Don't even think about booking a room without AC in Paris from June to September.

I'll concur. You need AC. It reached 39C on 1 July this year, my apartment got so warm inside that the fridge broke down. The rest of the month was cooler, but you don't want to gamble...

I was in Paris in July this year, much better than it was in 2024. Much more pleasant as the temperature went down slowly from the hot and dangerous day of the 1st of July, .... too cold last year in July in Paris. I like Paris in July. If you are in need of AC, then be certain the hotel has it. I don't need AC , won't pay extra for it.

We visited Bordeaux in July and Carcassonne in August, staying in lodgings that were air-conditioned. Maximum reported temperature was, I believe, 42C (about 108F). Although we needed to drink lots of water for hydration, conditions weren't oppressive through the day if one sought shade wherever possible. Humidity wasn't extremely high. But I agree that A/C is essential pretty much everywhere in France in July and August.

I've been to Paris in July for the past few years and have been (not so) lucky enough to hit all the heatwaves...every time! Definitely look for hotels with AC (it should specify and you can read reviews about the AC.) My experience with AirBnBs is the AC is very hit/miss in Paris so I opt for hotels. As for the rest of the city, some places (restaurants, shops, etc.) have AC, some do not. Or, the AC is not turned on as high as we Americans are used to. I always take a folding hand fan in my purse (popular in the south of France and Spain for hot days.) But, as crazy as it sounds, you do acclimate. If I ever was getting too hot, I'd seek out the Galeries Lafayettes or HMV as they tend to have great AC (the Westfield mall in Les Halles does not have good AC.) And, you may wind up with perfect weather instead of a heatwave.

We had three heat waves in France last summer. Just as we thought one was finished, along came another. Even if you could open your windows in a city hotel, you don't want to hear the street noise: people walking home at 2 am talking, cafés dumping the empty bottles outside for recycling pick up.

True, the heat waves this past summer were far more acute in central France where re: those areas one saw "red" on the weather maps used to indicate its intensity. Watching the French news daily in Paris, I kept myself informed of this pertinent weather news even though going into those red marked areas / towns was not part of my agenda.

My hotel did not have AC , let alone a fan in the room , Paris was tolerable and fine for me and towns in Northern France could be expected to be a bit cooler than the heat in Paris.

Just reading the title of the post made sweat go to my brow.

Paris overall is quite warm in July. There is generally AC in many places and definitely in hotels. I personally prefer when it's a bit warmer, since the evenings can be a bit cooler and you can enjoy sitting outside in corner cafes, eating, drinking and people watching.
As for the hotel with potentially no AC, I would def. check on that to make sure they have it.