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The weather in Mississippi in September is hot. The average temperatures are between 20°C and 31°C.
You can expect about 3 to 8 days of rain in Mississippi during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Mississippi in September 2025.
If you’re planning to visit Mississippi in the near future, we highly recommend that you review the 14 day weather forecast for Mississippi before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 4° | 6 | 24 | 1 | 138 mm | Ok | Mississippi in January |
| February | 15° / 6° | 6 | 21 | 1 | 139 mm | Good | Mississippi in February |
| March | 20° / 10° | 7 | 23 | 1 | 157 mm | Ok | Mississippi in March |
| April | 24° / 13° | 6 | 24 | 0 | 172 mm | Perfect | Mississippi in April |
| May | 29° / 17° | 8 | 23 | 0 | 131 mm | Ok | Mississippi in May |
| June | 33° / 21° | 9 | 21 | 0 | 132 mm | Ok | Mississippi in June |
| July | 33° / 22° | 10 | 21 | 0 | 145 mm | Ok | Mississippi in July |
| August | 33° / 22° | 11 | 20 | 0 | 154 mm | Ok | Mississippi in August |
| September | 31° / 20° | 6 | 24 | 0 | 149 mm | Good | Mississippi in September |
| October | 26° / 14° | 4 | 27 | 0 | 88 mm | Perfect | Mississippi in October |
| November | 18° / 8° | 4 | 26 | 0 | 93 mm | Good | Mississippi in November |
| December | 15° / 6° | 5 | 25 | 1 | 126 mm | Good | Mississippi in December |