Click on a day for an hourly weather forecast
The temperatures in South Padre Island during September are extremely high, between 27°C and hot as 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in South Padre Island. 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 South Padre Island in September 2026.
If you’re planning to visit South Padre Island in the near future, we highly recommend that you review the 14 day weather forecast for South Padre Island before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 20° / 16° | 6 | 25 | 0 | 86 mm | Good | South Padre Island in January |
| February | 21° / 17° | 3 | 26 | 0 | 37 mm | Good | South Padre Island in February |
| March | 23° / 19° | 2 | 29 | 0 | 39 mm | Perfect | South Padre Island in March |
| April | 25° / 22° | 3 | 27 | 0 | 34 mm | Perfect | South Padre Island in April |
| May | 28° / 24° | 4 | 27 | 0 | 56 mm | Perfect | South Padre Island in May |
| June | 30° / 27° | 5 | 25 | 0 | 126 mm | Good | South Padre Island in June |
| July | 31° / 27° | 5 | 27 | 0 | 94 mm | Good | South Padre Island in July |
| August | 31° / 28° | 6 | 25 | 0 | 100 mm | Good | South Padre Island in August |
| September | 30° / 27° | 10 | 20 | 0 | 226 mm | Ok | South Padre Island in September |
| October | 28° / 25° | 5 | 27 | 0 | 95 mm | Perfect | South Padre Island in October |
| November | 24° / 21° | 4 | 26 | 0 | 97 mm | Perfect | South Padre Island in November |
| December | 21° / 18° | 4 | 27 | 0 | 71 mm | Good | South Padre Island in December |