Big Bend National Park Weather Information

Big Bend National Park Weather Information

Annual precipitation is just under 10 inches in most of the park, but in wet years may exceed 30 inches in the mountains.

Typically, winter and spring are dry seasons; the rains usually begin in June and last into the fall.

Summer brings hot days and warm nights. Dramatic afternoon lighting storms with high winds are common and come on quickly. Heavy down pours may result in flash floods.

Winter days may be sunny and warm, but nights tend to be cold. Winter storms can blow in suddenly with plummeting temperatures and rain or snow.

The weather in Big Bend – hot or cold – injures and kills more hikers than any other factor. Come well prepared because weather changes can be dramatic and unexpected.

Big Bend National Park Weather by Month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
High – °F	60.9	66.2	77.4	80.7	88.0	94.2	92.9	91.1	86.4	78.8	68.5	62.2	78.9
Low – °F	35.0	37.8	45.3	52.3	59.3	65.5	68.3	66.4	61.9	52.7	42.3	36.4	51.9
Avg Precip (in)	0.46	0.34	0.31	0.70	1.50	1.93	2.09	2.35	2.12	2.27	0.70	0.57	15.34
Precip YTD (in)	0.46	0.80	1.11	1.81	3.31	5.24	7.33	9.68	11.80	14.07	14.77	15.34	15.34

20 FAQs about Big Bend National Park weather

What is the best time of year to visit Big Bend National Park for good weather?
Fall (October–November) and spring (March–April) offer the most comfortable temperatures.

What is the average temperature in Big Bend National Park by month?
Temperatures range from winter highs around 60°F (16°C) to summer highs exceeding 100°F (38°C).

How hot does Big Bend National Park get in the summer?
Summer daytime temperatures often reach 100–110°F (38–43°C), especially at lower elevations.

Does Big Bend National Park get snow in the winter?
Snow is rare but can occur at higher elevations in the Chisos Mountains.

What is the weather like in Big Bend National Park in spring?
Spring is warm and dry, with cool mornings and mild afternoons.

What is the weather like in Big Bend National Park in fall (autumn)?
Fall features cooler days, low humidity, and mostly clear skies.

When is the rainy season in Big Bend National Park?
The rainy season typically runs from June through September.

How much rainfall does Big Bend National Park receive annually?
Big Bend averages about 10–15 inches (25–38 cm) of rainfall per year.

Are flash floods common in Big Bend National Park?
Flash floods can occur after heavy rain, particularly in arroyos and canyons.

What months have the highest risk of flash flooding in Big Bend?
July, August, and September have the highest flash flood risk.

How cold does it get at night in Big Bend National Park?
Nighttime temperatures can drop 30°F (17°C) or more below daytime highs.

Does Big Bend National Park experience strong winds?
Winds are usually light but can become strong in spring and during storms.

What is the weather like in Big Bend National Park during July and August?
Expect extreme heat, high humidity, and occasional thunderstorms.

How does elevation affect weather conditions in Big Bend National Park?
Higher elevations in the Chisos Mountains are cooler and receive more rain.

Is Big Bend National Park weather predictable?
Weather is generally predictable but can change quickly during summer storms.

What should I wear for the weather at Big Bend National Park?
Wear lightweight clothing, sun protection, sturdy shoes, and layers for cooler nights.

Can extreme weather close roads or trails in Big Bend National Park?
Yes, heavy rain, flooding, or extreme heat can lead to temporary closures.

How does Big Bend National Park weather affect hiking conditions?
Heat and lack of shade make hiking challenging, especially in summer.

What is the best month to avoid extreme heat in Big Bend National Park?
November is ideal, with cooler temperatures and stable weather.

Where can I check the current weather forecast for Big Bend National Park?
Check the National Weather Service or the official Big Bend National Park website.