The weather in May in Big Bend National Park

It's hot in May in Big Bend National Park with an average temperature of 36°C. Temperatures this month range from a low of 32°C to a high of 39°C. At night, you can expect temperatures between 17°C and 24°C.

May isn’t a good month to be in Big Bend National Park. The average temperature of 36°C this month is uncomfortably hot for a comfortable stay.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Big Bend National Park, Texas. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 43°C in 2018, Big Bend National Park reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 21°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 29°C.

Rainfall amount

In May, there is an average of 30 mm of precipitation, spread over 6 days. The wind speed is around 3 Bft, mostly coming from the Southeast.

Daily weather in May for Big Bend National Park

Click on any day in May to get detailed info about the usual weather on that day in Big Bend National Park. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  Big Bend National Park New York
Average temperature 36°C 22°C
Max. temperature 39°C 28°C
Min. temperature 17°C -5°C
Total precipitation 30 mm 105 mm
Rainy days 6 days 14 days

Start of May

The month of May starts in Big Bend National Park with hot temps, averaging around 36°C during the day and nights around 20°C.

Mid May

By mid-May, daytime temps stay steady at around 36°C, with nights around 21°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of May

By the end of May, the average daytime temperature in Big Bend National Park is around 37°C, while nighttime temps are about 23°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable vacations to Big Bend National Park

UV index

The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

The hurricane season in Big Bend National Park runs from June to November.

Check out the climate of Big Bend National Park for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in May in Big Bend National Park, Texas. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in Big Bend National Park

Temperature in May in Big Bend National Park over the years

Precipitation charts

These charts show the average amount of precipitation in May in Big Bend National Park, Texas. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in May in Big Bend National Park

Total precipitation in May in Big Bend National Park over the years

Daily UV index in May in Big Bend National Park

This chart shows the average daily UV index in May in Big Bend National Park, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in May in Big Bend National Park

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Average weather in Big Bend National Park by month

Click on a month below to see detailed weather info for Big Bend National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.