Facts checked against live data · 12 Sept 2026

Less good

United States in September: Weather, Crowds & What's On

What September is actually like in United States — average highs and lows, how much rain to expect, public holidays that fill trains and hotels, and verified places to go.

Average high
30°C
Average low
25°C
Rainfall
117mm

Where this month sits in the year

The 4th warmest month of United States's year. The 7th wettest month, at 7% of the year's rain.

Public holidays in September

Domestic travel peaks around these dates — book earlier and expect busier sights.

  • September 7 Labor Day · Labour Day

What's closed on your dates →

On in September

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Climate figures are 10-year averages for New Orleans, from NASA POWER; holidays from public calendars. Updated monthly.

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