Click on a day for an hourly weather forecast
The weather in Biloxi in September is very hot. The average temperatures are between 23°C and 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Biloxi. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Biloxi in September 2025.
If you’re planning to visit Biloxi in the near future, we highly recommend that you review the 14 day weather forecast for Biloxi before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 8° | 6 | 25 | 0 | 119 mm | Good | Biloxi in January |
| February | 17° / 10° | 6 | 22 | 0 | 140 mm | Good | Biloxi in February |
| March | 21° / 14° | 6 | 25 | 0 | 153 mm | Good | Biloxi in March |
| April | 25° / 17° | 5 | 25 | 0 | 122 mm | Perfect | Biloxi in April |
| May | 28° / 21° | 7 | 24 | 0 | 149 mm | Good | Biloxi in May |
| June | 32° / 24° | 11 | 19 | 0 | 243 mm | Ok | Biloxi in June |
| July | 32° / 25° | 15 | 16 | 0 | 300 mm | Ok | Biloxi in July |
| August | 32° / 25° | 15 | 16 | 0 | 351 mm | Ok | Biloxi in August |
| September | 30° / 23° | 10 | 20 | 0 | 272 mm | Ok | Biloxi in September |
| October | 26° / 18° | 5 | 26 | 0 | 133 mm | Perfect | Biloxi in October |
| November | 20° / 13° | 4 | 26 | 0 | 99 mm | Good | Biloxi in November |
| December | 17° / 11° | 6 | 25 | 0 | 151 mm | Good | Biloxi in December |