Big Bend National Park weather in September
Hot and humid, with occasional showers. Average highs of 33°C and lows of 23°C, with around 5 rainy days expected throughout the month.
While September isn't our top-rated month for Big Bend National Park, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
33°C
Average low
23°C
Rainy days
5 days
Best months to visit
February, March, April, October, November, December
What to do in Big Bend National Park in September
Whatever the weather, Big Bend National Park rewards curious visitors. Here are some of the best ways to spend your time:
Chisos Mountains hiking: Lost Mine Trail and ridge walks
Rio Grande river canoeing and boat exploration
Boquillas Canyon river float: Mexican village access
Hot springs natural thermal pool immersion soak
Stargazing: dark sky park astronomical observatory quality
Desert wildflower hiking: seasonal bloom explosion
What to pack for September
Light breathable clothing, high-SPF sunscreen, a wide-brimmed hat, and a reusable water bottle are essential. Pack sandals and at least one light layer for air-conditioned interiors.
Browse other months
January
18C
Mild and comfortable, and mostly sunny skies.
Recommended
February
22C
Mild and comfortable, and mostly sunny skies.
Recommended
March
27C
Warm and pleasant, and mostly sunny skies.
Recommended
April
31C
Hot and humid, and mostly sunny skies.
May
34C
Hot and humid, and mostly sunny skies.
June
37C
Very hot, and mostly sunny skies.
July
37C
Very hot, and mostly sunny skies.
August
36C
Very hot, with occasional showers.
September (you are here)
33C
Hot and humid, with occasional showers.
Recommended
October
29C
Warm and pleasant, and mostly sunny skies.
Recommended
November
23C
Mild and comfortable, and mostly sunny skies.
Recommended
December
20C
Mild and comfortable, and mostly sunny skies.
Book your September trip to Big Bend National Park
Find hotels, tours and experiences for the perfect escape.
