Paris in June?

The really busy period is from late July until early September when most European countries have school vacations. In June the kids are still at school so it isn't too bad. Other than the super big name sites like Versailles, the Mona Lisa room in the Louvre, and the Impressionist rooms in the Orsay, Paris isn't ridiculously crowded with tourists anyway.

Paris should be wonderful in June, I would have no hesitation being there at all. Strolling and hanging out in outdoor cafes should be fantastic.

Paris should be cooler in June than in August, and cooler any time than Florence or Venice. Whether it's "worth it" I couldn't tell you, but you've been there before and know what you want to do and see. No reason to let the weather deter you.

Paris would be great in June.
Note that Paris isn't like here: not all hotels come with AC, or with screens on the windows.
So you'll probably want to make sure that the lodging you pick has AC.
That way, if it's a little warm in the early evening, you can be comfortable without having to open windows that don't have screens, and where there may be street noise.
The AC won't refrigerate the room, like here, but it can make a difference in keeping you more comfortable, because of the window situation (with no screens) if your lodging didn't have AC.

Be sure to pack for either cool or hot weather. We've had many cold Junes that suddenly switched to hot over night but toward the end of the month. It's very difficult to find reasonably priced sweaters in June; I've made the mistake at least twice of not having enough cool weather clothes with me. A couple of other years, the heat waves were starting in early June.

Yes, it's crowded in June because all the school groups, not just Parisian, but also French outside Paris and from other European countries make trips to Paris in June. That's in addition to the large organized adult tours from all over the world.

Last summer we spent 10 days in Paris in mid to late June and had a fabulous time. Remember June 21 is the longest day of the year, so evenings in Paris during that time of year are wonderful.

I especially love early June in Paris, but I find even mid-June to be less crowded than August.

I spent May through July in Paris last year and June was my favorite month. Not to be missed is Fete de La Musique which takes place on the longest day of the year, June 21. Free music wherever you wander, from symphony orchestras to one person bands. True, the museums could be crowded, but I never felt part of a herd while outside and was always able to find seats along the river or in a park to sit, read, and watch the world go by.
Florence in June can be very hot but the hotels are allowed to use AC by then and Venice has fewer strolling/people watching opportunities.

I noticed a palpable increase in tourists between June 24 and the first week of
July. We passed Trocadero every day and it was completely different once July hit. We're going in September this year.

Late June (when school's out) sounds better to me than early June, when I've been there. You won't have all the school groups at the museums.

Weather is totally unpredictable. It could be cold and rainy, or hot and muggy, or pleasantly warm. I completely agree to get a room with AC. Even if it's not real hot, if the sun shines on your room in the afternoon, the only thing that will cool it is the AC. Some places are always crowded, but you can always find quiet corners. Paris is much larger than Florence or Venice and so the crowds won't be bad. And probably won't be as hot. Iced drinks are no longer unusual in Paris.

Last time I was in Paris it was late August and it was by no means hot, in fact quite the opposite. However, this was unusual. Whilst being quite crowded it was not unbearably so. Then again we were not negotiating the Eiffel Tower queue.
Mid to late June sounds ideal to me. Avoid the crowded attractions during the middle of the day.
You will easily find quiet spots in the Marais, the Tuileries, Luxembourg Gardens and on Montmartre.
For certain Florence and Venice would be much more difficult to negotiate with crowds.

Hi,

I like Paris in June as regards to the weather and the crowds. While it's true you can predict the weather there, you can safely expect it to be cooler, ie, more comfortable, in June than in August. I've been there in August too, and I'm talking about the chances of encountering a heat wave. That's when you wish regarding the AC, if you have it, they would set it on meat locker, but if you don't...

In June I don't expect to bake in Paris, whereas in August I would. "...still worth doing?" That depends how desperate you are on seeing Paris again. I'm desperate, and if it's August, I would do it.

I have visited Paris in June twice and it was lovely. I am going again this summer. I will avoid Arc de Triomphe and other similar attractions as my phone was stolen twice in one day in such places (I got it back the first time, not the second). Very skilled people watch these places for opportunities, the second attempt was a group effort on a moderately crowded bus.

I recommend the bikes for riding around, it makes the city feel much smaller and more personal. I agree with the earlier recommendations, jardin du Lux, Sacre Coeur, Tuilerie, etc.