Paris Weather in September
Planning a trip to Paris in September? Here's what the weather is really like as the city eases out of summer — and why many travelers consider it the best month of the year to visit.
September is when Paris turns the corner. Highs drop to the upper 60s and mid-70s°F, nights cool into the 50s, and the summer heat waves that dominate June and July are largely (though not entirely) gone. Rain picks up slightly to 8–10 days as the polar jet stream slides south and the Azores High retreats, opening the door for more unsettled weather.
But the reward is real: pleasant temperatures, thinner crowds (especially early in the month, before Fashion Week arrives), locals back from vacation, and the first hints of autumn color starting to show. Meteorologist Ian Schwartz breaks down what to expect.
At a glance
What's covered
- Highs, lows, and how fast the heat fades
- The rare late-season heat wave
- Rainy days and why the pattern shifts
- Why the polar jet stream matters this month
- Fashion Week timing and crowd notes
- Early autumn color
Jump to a moment
Paris in September FAQ
When does Paris start feeling like fall?
September is the turning point. The heat of July and August fades, highs drop to the upper 60s and mid-70s°F, and early autumn color starts showing by the end of the month.
Is September a good time to visit Paris?
One of the best. Pleasant temperatures, thinner crowds early in the month, locals back from vacation, and the beginning of autumn. Fashion Week (late September) brings a temporary crowd spike.
Is it rainy in Paris in September?
Rain picks up slightly to 8–10 days as the polar jet stream slides south and the Azores High retreats. Most rain comes in short bursts, not all-day downpours. Bring a light rain jacket.