Weather

Desert Thunderstorm
Desert thunderstorm

NPS Photo/Mark Schuler

 

Weather and River Level Information


Sunshine is abundant year-round on the Rio Grande. While this sounds welcoming, heat exhaustion and heat stroke are dangers to guard against during the hot months. Conversely, hypothermia is a life-threatening danger during the balance of the year. Infrequent and brief periods of cloudy weather are confined mostly to the winter months.

Appropriate clothing and other gear should be carried from November through April as cold fronts can bring freezing weather with rain or snow. The “rainy season” extends from mid-July through early October and can result in locally heavy thunderstorms and flash floods. Rapid river rises can be dangerous if unprepared. Relative humidity is normally between 25%-40% year around.

The statistics shown below are from Rio Grande Village, elevation 1,850 feet above sea level.

 
Month

Temperature Averages °F/°C

Precipitation
(inches/mm)
River depth
(feet/meters)
Maximum Minimum
January 67.7 / 19.8 31.8 / -0.1 0.39 / 9.9 2.53 / 0.77
February 74.0 / 23.3 35.4 / 1.9 0.39 / 9.9 2.58 / 0.79
March 83.2 / 28.4 44.4 / 6.9 0.16 / 4.1 2.93 / 0.89
April 91.1 / 32.8 53.4 / 11.9 0.58 / 14.7 3.06 / 0.93
May 96.8 / 36.0 62.8 / 17.1 1.43 / 36.3 3.54 / 1.08
June 103.1 / 39.5 69.7 / 20.9 1.44 / 36.6 3.39 / 1.03
July 101.6 / 38.7 70.8 / 21.6 1.47 / 37.3 3.15 / 0.96
August 99.4 / 37.4 71.0 / 21.7 1.61 / 40.1 3.87 / 1.18
September 94.9 / 34.9 65.3 / 18.5 1.30 / 33.0 4.16 / 1.27
October 87.2 / 30.7 54.0 / 12.2 1.30 / 33.0 4.31 / 1.31
November 76.8 / 24.9 40.2 / 4.6 0.41 / 10.4 3.01 / 0.92
December 69.9 / 21.1 32.9 / 0.5 0.34 / 8.6 2.65 / 0.81
 
 

Big Bend Current Conditions
Live weather station data, forecast, air quality data, live webcam, etc.

Last updated: April 13, 2020

Contact the Park

Mailing Address:

Rio Grande Wild & Scenic River
c/o Big Bend National Park
PO Box 129

Big Bend National Park, TX 79834

Phone:

(432) 477-2251

Contact Us