Paris in July: 26°C afternoons, 16°C mornings, 7 rain days, 222 sunshine hours — the sunniest month of the year.
July is Paris at full summer. Météo-France puts the afternoon high at 25.7°C and the low at 16.2°C, with 222 hours of sunshine — the sunniest month of the year — and only 7 rain days, mostly short thunderstorms that clear the air. The real challenge isn't heat, it's heat plus a Métro without air conditioning and apartments that don't cool much after sunset. Heat waves in July have pushed Paris past 40°C in recent years; plan around the 3-6pm window. This is the month for linen and cotton only — wide-leg trousers, slip dresses, a cotton shirt open over a tank — but Paris still dresses. You will see tourists in gym shorts and tank tops; locals at the same restaurant will be in a midi linen dress and flat leather sandals, ordering the same wine. The look is restraint, not effort.
Tourists arrive in gym shorts and tank tops; locals order the same wine in a linen midi dress and flat leather sandals.

The most-worn piece in July. Handles heat, reads polished, and packs flat.

Worn open over a tank in the afternoon, as a beach-style cover-up at the Seine, tied at the waist for dinner.

Cooler than any denim, more elegant than shorts. The default bottom for afternoons over 25°C.

For the hottest afternoons, with the linen trousers. Still covered enough for most restaurants at lunch.

Two pairs. The thong for walking days, the slide for evenings when a thong reads too casual.

Summer in Paris is the one month a basket bag reads effortless rather than tourist. Pair with anything.
Oversized shirt open · knotted crop · linen trousers · thong sandal · basket bag. Lunch at Marché des Enfants Rouges.
Slip dress · light scarf · structured slide · small bag. Sunset apéro at a Canal Saint-Martin bistrot.
Per Météo-France climate data: average high 25.7°C (78°F), average low 16.2°C (61°F). About 7 days with rain totalling 59mm. Sunshine hits 222 hours — the most of any month. Heat waves in recent years have pushed some July days past 35-40°C; check forecasts before finalizing clothing choices.
Hot, not punishing for most of the month. The real issue isn't temperature, it's that most apartments and the Métro lack air conditioning. Plan around the hottest hours (3-6pm) by being in museums, department stores, or church interiors. Outdoor dining after 8pm becomes pleasant again.
Not a real jacket. A light silk scarf, pashmina, or oversized linen shirt tied around the waist handles the post-sunset breeze and covered-shoulder requirements at churches (Saint-Sulpice, Sacré-Cœur). Air-conditioned restaurants and museums are cool enough that a thin layer in your bag is genuinely useful.
Linen, lightweight cotton, cotton-silk blends, seersucker. Skip polyester blends — they trap heat on the Métro and don't dry quickly after a sweaty afternoon. Linen wrinkles are accepted and local; polyester shine is not.
Yes, in everyday casual settings. For dinner reservations at a nicer restaurant or a visit to a church, pair it with an open shirt or scarf so shoulders can be covered if the room calls for it. Strappy tanks without a cover-up feel too beach at a Saint-Germain bistro.
Four to five rotated carefully. Paris laundry service (pressing too) is cheap and most hotels offer same-day turnaround; packing light and repeating is more elegant than packing seven distinct looks. Two bottoms (wide-leg linen + denim skirt), three tops, one dress, and one evening layer covers most trips.