‹ Corpus Christi weather by month
Typical September weather
Corpus Christi
Texas · September
91° days
73° nights
about 7 rainy days · 12½ hours of daylight · gulf 86°
What to pack
- Umbrella
- Swimsuit
- Sunscreen
What September feels like
September is the wettest and most storm-watched month on this coast, which also makes it the cheapest. Locals know which underpasses go under first and route around them; visitors learn the hard way once and then never again.
Rain arrives about 7 days of the month, so keep one flexible day in your plans. Full tropical humidity: mornings are your friend, and shade is currency. about 20 afternoons top 90°.
Can you swim?
The Gulf runs about 86° — bath-warm.
The numbers
| Typical high | 91° |
|---|---|
| Typical low | 73° |
| Days with real rain | 7 |
| Total rain | 5.4 in |
| Humidity | tropical |
| Water temperature | 86° |
| Sunrise / sunset (mid-month) | 7:15 am / 7:34 pm |