A scenic natural rock formation in the Big Bend National Park, Texas
Weather in September
September brings a distinct change in the air as autumn begins to make its presence felt. The falling temperatures bring much-needed relief after the exhausting heat of the prolonged summer. The shorter daylight hours and moderated rainfall make it a comfortable month for park exploration. The transition period of September quietly heralds the gradual coolness of October, promising the onset of a more relaxed, tranquil ambiance.
On the first day of the month, sunrise is at 7:31 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:46 am and sunset at 7:39 pm CDT.
Temperature
September's average high-temperature in Big Bend National Park, Texas, is a still sweltering 96.3°F (35.7°C), maintaining a close comparison with August's 101.1°F (38.4°C). Big Bend National Park documents a significant temperature variance in September, with the mean nighttime lows settling at a pleasant 68.5°F (20.3°C).Rainfall
Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in Big Bend National Park, 10.24" (260mm) of rain is accumulated.Daylight
The average length of the day in September in Big Bend National Park, Texas, is 12h and 19min.On the first day of the month, sunrise is at 7:31 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:46 am and sunset at 7:39 pm CDT.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Big Bend National Park in September?
An average high-temperature, in September, in Big Bend National Park, is 96.3°F (35.7°C) and the average low-temperature is 68.5°F (20.3°C).
How much does it rain in Big Bend National Park in September?
Throughout September, 1.46" (37mm) of precipitation is accumulated.
How many hours of daylight does Big Bend National Park have in September?
In September, the average day length in Big Bend National Park, Texas, is 12h and 19min.
When is the sunrise / sunset in September in Big Bend National Park?
On the first day of September in Big Bend National Park, sunrise is at 7:31 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:39 pm CDT.
Average temperature in September
Big Bend National Park, TX
- Average high temperature in September: 96.3°F
The warmest month (with the highest average high temperature) is June (103.4°F).
The month with the lowest average high temperature is January (68.2°F).
- Average low temperature in September: 68.6°F
The month with the highest average low temperature is July (74.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average rainfall in September
Big Bend National Park, TX
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is July (1.7").
The driest month (with the least rainfall) is March (0.2").
Average daylight in September
Big Bend National Park, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
Big Bend National Park, Texas, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location