Best time to visit Paris: April–June & September–October.
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April–June & September–October is the best window to visit Paris. Mild temperatures and blooming parks without peak-summer crowds or prices.
July–August is the stretch to avoid if possible. Peak tourist season — hot, crowded, and many small local businesses close for August holidays.
Not necessarily — weather and crowd timing don't always match the cheapest airfare windows. Check our Best Time to Book Flights tool separately for pricing.
Usually yes — the weeks just before or after Paris's best window often have nearly as good weather with noticeably fewer crowds and lower prices.