Baton Rouge weather in September 2025

Q: How hot is it in Baton Rouge in September?

Daytime temperatures usually reach 31°C in Baton Rouge in September with high heat and humidity, falling to 20°C at night.

Q: How sunny is it in Baton Rouge in September?

There are normally 8 hours of bright sunshine each day in Baton Rouge in September - that's 63% of daylight hours.

Q: Does it rain in Baton Rouge in September?

There are usually 9 days with some rain in Baton Rouge in September and the average monthly rainfall is 122mm.

Q: What is the chance of a cyclone in Baton Rouge in September?

On average 1.1 days in September in Baton Rouge are likely to be affected by the passage of one or more tropical storms.

Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Baton Rouge in September. Check more long-term weather averages for Baton Rouge in September before you book your next holiday to Louisiana in 2025/2026.

31
31°C max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
20
20°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
122
122 mm of monthly rainfall
9
9 (Very High) UV index

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The September weather guide for Louisiana (Baton Rouge) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about the USA

How hot is it in Baton Rouge in September?

Daytime temperatures usually reach 31°C in Baton Rouge in September with high heat and humidity, falling to 20°C at night.

How sunny is it in Baton Rouge in September?

There are normally 8 hours of bright sunshine each day in Baton Rouge in September - that's 63% of daylight hours.

Does it rain in Baton Rouge in September?

There are usually 9 days with some rain in Baton Rouge in September and the average monthly rainfall is 122mm.

What is the chance of a hurricane in Baton Rouge in September?

On average 1.1 days in September in Baton Rouge are likely to be affected by the passage of one or more tropical storms.

Baton Rouge September sunrise & sunset times

Browse the sunrise and sunset times for Baton Rouge in September 2025. Select a month to view Baton Rouge sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	05:41	18:27
Monday, 15th September 2025	05:49	18:10
Tuesday, 30th September 2025	05:58	17:51

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Louisiana - quick facts
Flight time^✝	10 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Louisiana Office of Tourism