South Padre Island, Texas weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: April – August, October
What is the weather like in South Padre Island, Texas in September?
In September, South Padre Island, Texas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun shines for around 7 hours a day. It rains often – on about 16 days, adding up to 144 mm. On about 13 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in South Padre Island, Texas.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 92 | 76 | 82 |
| Day | 31° | 30° | 28° |
| Night | 27° | 26° | 23° |
| Sea | 29° | 29° | 27° |
| Sun | 9 h | 7 h | 7 h |
| Rain days | 9 | 16 | 11 |
More details for September
- Daylight
- 12 h 21 min07:14 – 19:34
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 49 %on averageAll months
- Hot days
- 13 days30 °C or moreAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 20 %15 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
South Padre Island, Texas in September: quick answers
Is South Padre Island, Texas hot in September?
Yes. In September, South Padre Island, Texas is hot: daytime highs average 30 °C and nights stay around 26 °C. On about 13 days the thermometer climbs to 30 °C or more.
Can you swim in South Padre Island, Texas in September?
Yes. In September the sea averages 29.1 °C – almost as warm as a bath.
Does it rain much in South Padre Island, Texas in September?
It rains often – on about 16 days, adding up to 144 mm.
South Padre Island, Texas month by month
The whole year in South Padre Island, TexasAll destinations: USAWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences