Updated 4 Aug 2026 · recomputed nightly

Visiting Paris in September 2026?

September 2026 is a shoulder month in Paris: warm and showery, around 23°C / 73°F with rain on about 8 days, Lively on 24 of 30 days — 6 days run Busy or Packed.

In short, a solid middle-ground pick.

Among the 12 months we forecast for Paris, September ranks 6th for crowd pressure. Its heaviest day is Mon 7 Sep, busier than 70% of the year; its lightest is Wed 16 Sep at 60%.

Crowds
6/30 busy or packed
0 calm · 24 lively
Weather
23°C / 73°F
rain ~8 days
Value
Strong value
a solid middle-ground pick

Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →

How busy is Paris in September?

The busiest days are the 7th, 8th, 11th and 15th, and 2 more. Away from those, most days sit Lively. The calmest stretch is the 21st–30th.

The month barely moves — every day lands between 60% and 70% of the year. Daylight runs about 12 hours.

Either side of it, August picks up and October is far calmer.

The calmest days include the 16th, 17th and 18th — 14 days share that level, so there is room to choose.
CalmLivelyBusyPacked% = busier than this share of the year · tap any day for its full forecast
Best daysWed 16 · Thu 17 · Fri 18 — The calmest days include the 16th, 17th and 18th — 14 days share that level, so there is room to choose.
Busiest daysMon 7 · Tue 8 · Fri 11 · Tue 15 — the heaviest of 6 busier days — check the calendar for the rest.

How does October compare? →

Locked into a busy day? Here's the play.

–9am
Own the morning.The day-trip wave lands mid-morning; the headline sights before nine are effectively yours.
10–5
Go where the day-trippers don't.Away from the headline sights it stays manageable all day. Save the marquee ones.
5pm+
Take the city back.Day-trippers leave by early evening — the same squares empty out and the light is better.

Travelling on a busy day?
Timed-entry and skip-the-line tickets turn queue time into sightseeing time — sort them before you fly.

See skip-the-line options for Paris →

September weather in Paris

Comfortably warm — around 23°C / 73°F, easy shirtsleeve weather, with rain on about 8 days, so keep a layer handy.

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Is September worth it in Paris?

Strong value — near-peak weather without the peak crush.

Worth booking the marquee sights ahead for the busy days, but you can keep the rest of the trip flexible.

Compare October →

Keep planning

Built on: France's public holidays · school vacations across France and Germany · the season pattern from official overnight stays · five years of weather records (2019–2023) · operator-confirmed events
Every figure is recomputed nightly from public and school holidays, and long-run climate normals. Gaps are shown, not filled.

Paris · Methodology · About · forecast.json · llms.txt · CC BY 4.0