Typical September weather
Galveston
Texas · September
89° days
76° nights
about 7 rainy days · 12½ hours of daylight · gulf 87°
What to pack
- Umbrella
- Swimsuit
- Sunscreen
What September feels like
The rainiest stretch of the Galveston year and the deepest part of storm season — also the reason rates drop and the beaches empty out. Locals fish it hard — the redfish run, and the water holds its summer warmth long after the schools go back.
Expect about 7 days with real rain — enough to notice, not enough to plan around. about 11 afternoons top 90°.
Can you swim?
The Gulf runs about 87° — bath-warm.
The numbers
| Typical high | 89° |
|---|---|
| Typical low | 76° |
| Days with real rain | 7 |
| Total rain | 6.7 in |
| Water temperature | 87° |
| Sunrise / sunset (mid-month) | 7:04 am / 7:24 pm |