Click on a day for an hourly weather forecast
The weather in League City in September is very hot. The average temperatures are between 24°C and 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in League City. 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 League City in September 2025.
If you’re planning to visit League City in the near future, we highly recommend that you review the 14 day weather forecast for League City before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 16° / 9° | 5 | 25 | 0 | 97 mm | Good | League City in January |
| February | 18° / 11° | 6 | 22 | 0 | 68 mm | Good | League City in February |
| March | 21° / 15° | 6 | 25 | 0 | 82 mm | Good | League City in March |
| April | 25° / 18° | 7 | 23 | 0 | 114 mm | Good | League City in April |
| May | 28° / 22° | 9 | 22 | 0 | 118 mm | Good | League City in May |
| June | 32° / 25° | 11 | 19 | 0 | 120 mm | Ok | League City in June |
| July | 32° / 26° | 15 | 16 | 0 | 134 mm | Ok | League City in July |
| August | 32° / 26° | 16 | 15 | 0 | 159 mm | Ok | League City in August |
| September | 30° / 24° | 14 | 16 | 0 | 181 mm | Ok | League City in September |
| October | 27° / 20° | 8 | 23 | 0 | 116 mm | Good | League City in October |
| November | 21° / 15° | 6 | 24 | 0 | 94 mm | Good | League City in November |
| December | 18° / 11° | 7 | 24 | 0 | 101 mm | Ok | League City in December |