Biloxi weather in September 2025

Expect 88°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Biloxi in September. Check more long-term weather averages for Biloxi in September before you book your next holiday to Mississippi in 2025/2026.

  • 88°F maximum daytime temperature in September in Biloxi88
    88°F max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Biloxi10
    10 days with some rainfall
  • 70°F minimum night-time temperature in September in Biloxi70
    70°F min night temperature
  • 12 hours of daylight per day in September in Biloxi12
    12 hours of daylight per day
  • High heat & humidity in September in BiloxiH
    High heat & humidity
  • 6.5 inches monthly rainfall in September in Biloxi6.5
    6.5 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Biloxi9
    9 (Very High) UV index
  • 82°F sea temperature in September in Biloxi82
    82°F sea temperature

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The September weather guide for Mississippi (Biloxi) 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)  |  Imperial (°F)

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How hot is it in Biloxi in September?

Daytime temperatures usually reach 88°F in Biloxi in September with high heat and humidity, falling to 70°F at night.

How sunny is it in Biloxi in September?

There are normally 7 hours of bright sunshine each day in Biloxi in September - that's 59% of daylight hours.

How warm is the sea around Biloxi in September?

The average sea temperature around Biloxi in September is 82°F.

Does it rain in Biloxi in September?

There are usually 10 days with some rain in Biloxi in September and the average monthly rainfall is 6.5 inches.

What is the chance of a hurricane in Biloxi in September?

On average 1.2 days in September in Biloxi are likely to be affected by the passage of one or more tropical storms.

Biloxi September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:32 18:18
Monday, 15th September 2025 05:40 18:00
Tuesday, 30th September 2025 05:49 17:42

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