QUAND PARTIR · GUIDE PRATIQUE

Spring is when Paris earns its reputation — chestnut trees blossoming along the boulevards, the Jardin du Luxembourg and Tuileries filling back in with colour, and daytime temperatures typically in the 10–19°C (50–66°F) range by May. March can still be cold and wet, closer to winter than the postcards suggest; April and May are the sweet spot, with long daylight hours and mild afternoons good for walking.

The catch is the calendar: French school holidays (early-to-mid April, roughly two weeks, dates set by zone) and international spring-break travel both land in this window, so popular sights and Seine-side paths get busy on sunny weekends. Book major museums and the Eiffel Tower a few weeks ahead even in spring — it's no longer the secret shoulder season it once was.

June is arguably the best of the summer months — daylight past 9:30pm, warm but not yet punishing, and before the July–August tourist peak fully lands. July and August bring the year's highest temperatures (regularly 25–30°C / 77–86°F, with occasional heatwaves well above that) and the heaviest crowds of the year at every major sight.

August specifically is when much of Paris itself goes on holiday: many independent bistros, boulangeries, and family-run shops close for one to four weeks, typically in the first half of the month, while the tourist-facing parts of the centre remain fully open. It's a real trade-off — the longest days and liveliest outdoor terrace culture of the year, against the highest prices, thickest queues, and a noticeably different, more tourist-oriented restaurant scene in some neighbourhoods.

September and October are what most Parisians and repeat visitors quietly recommend: the light turns golden and low, temperatures settle into a comfortable 12–20°C (54–68°F), the summer crowds thin out noticeably by mid-September, and the city's cultural calendar restarts after the August lull — this is when new gallery shows, the theatre season, and events like European Heritage Days (mid-September, when normally closed historic buildings open to the public for free) all land.

November is the hinge month: still walkable and mild early on, turning colder and greyer by the end, with the Christmas markets and illuminations beginning to appear in the final week or two.

Winter is Paris's off-season in every sense that helps a budget traveller: hotel rates drop 30–50% from summer peaks, flights are cheaper, and the major museums — the Louvre, Musée d'Orsay, Centre Pompidou — are at their least crowded all year, particularly on weekday mornings. The trade-off is weather: short days (sunset before 5:30pm at the December solstice), frequent grey skies, and average highs around 6–9°C (43–48°F), with occasional cold snaps.

December has real compensations — Christmas markets, seasonal lights along the Champs-Élysées and department-store windows at Galeries Lafayette and Printemps, and a genuinely festive, less touristy atmosphere in residential neighbourhoods. January and February are the quietest, cheapest, and greyest stretch of the year; good for a museum-and-café trip, less good for a first-time visit built around outdoor sightseeing.

Temperatures are typical daytime highs and will vary year to year — check a short-range forecast closer to your trip rather than planning packing around seasonal averages alone.

A handful of recurring events can either be a reason to time your trip around them, or a reason to book accommodation much earlier than usual if you'd rather avoid the crowds and price spikes they bring.

• Paris Fashion Week (late February–early March, and late September–early October): hotel rates in the central arrondissements rise noticeably and some restaurants require advance booking even on weeknights.
• Paris Marathon (April): road closures affect central Paris on race day, particularly along the route between the Champs-Élysées and the finish near the Arc de Triomphe.
• Fête de la Musique (21 June): free live music fills streets and squares citywide to mark the summer solstice — lively, crowded, and very much a locals' event as much as a tourist one.
• Bastille Day (14 July): a military parade down the Champs-Élysées in the morning and fireworks at the Eiffel Tower after dark; expect road closures and heavy crowds around both.
• Nuit Blanche (a Saturday in early October): an all-night contemporary art event with installations and free access to sites across the city until dawn.
• European Heritage Days (a weekend in mid-September): normally closed historic buildings, government sites, and private courtyards open to the public, usually free of charge.
• Christmas markets and illuminations (late November–early January): concentrated around the Champs-Élysées, Tuileries, and La Défense, alongside department-store window displays at Galeries Lafayette and Printemps.

Exact dates shift year to year for several of these, so check current listings a few months ahead if one of them is a reason for your trip.

Spring (March–May): layers are essential — a light jacket or trench, an umbrella or packable rain shell, and at least one warmer layer for cool mornings and evenings even in May. Comfortable walking shoes matter more than fashion here; much of central Paris is cobblestone or uneven pavement.

Summer (June–August): breathable, lightweight clothing, sunglasses, and sun protection — Paris apartments and older hotels are not universally air-conditioned, so heat can linger indoors as well as out. A light layer for air-conditioned museums and evenings is still worth packing even in a heatwave.

Autumn (September–November): similar to spring — layers, a rain jacket, and a scarf for cooler evenings from mid-October onward. This is arguably the easiest season to pack for, since you're rarely caught out by either extreme heat or real cold.

Winter (December–February): a proper warm coat, not just a jacket — Paris winters are damp-cold rather than dry-cold, which cuts through lighter layers. Waterproof shoes or boots, gloves, and a scarf are genuinely useful rather than optional, and dressing in layers still helps for the temperature swing between cold streets and heated interiors.