September Weather in Baton Rouge

Last updated: March 2, 2024

The weather in Baton Rouge, United States, during September is characterized by an average temperature of 26°C (79°F). Highs can soar to 35°C (95°F), while lows may dip to 17°C (63°F). Typically, the humidity level in Baton Rouge throughout September hovers around 79%.

17°C (63°F)

Minimum temperature

26°C (79°F)

Average temperature

35°C (95°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In September, Baton Rouge averages 135 mm (5.3 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 12 hours 18 minutes of daylight, with the sun shining for approximately 9 hours 19 minutes each day. Additionally, there is a 46% probability of sunny days during this period.

135 mm (5.3 inches)

Precipitation

13 rainy days

Rainy days

9 hours 19 minutes

Sunshine hours

46%

Chance of sun

UV Index

In September, the UV Index in Baton Rouge reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 3 5 8 10 10 10 7 5 2 1 1
Exposure Low Moderate VeryHigh High Moderate Low
Time to burn 45 min 30 min 15 min 25 min 30 min 45 min

Compare Baton Rouge's Climate with Cities Worldwide