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The weather in August in McAllen

It's hot in August in McAllen with an average temperature of 38°C. Temperatures this month range from a low of 37°C to a high of 39°C. At night, you can expect temperatures between 26°C and 27°C.

August isn’t a good month to be in McAllen. The average temperature of 38°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 August for McAllen, 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 42°C in 2016, McAllen reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 29°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 29°C.

Rainfall amount

In August, there is an average of 47 mm of precipitation, spread over 7 days. The wind speed is around 5 Bft, mostly coming from the Southeast.

Daily weather in August for McAllen

Click on any day in August to get detailed info about the usual weather on that day in McAllen. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  McAllen New York
Average temperature 38°C 30°C
Max. temperature 39°C 31°C
Min. temperature 26°C -5°C
Total precipitation 47 mm 79 mm
Rainy days 7 days 13 days

Start of August

The month of August starts in McAllen with hot temps, averaging around 38°C during the day and nights around 27°C.

Mid August

By mid-August, daytime temps stay steady at around 38°C, with nights around 27°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of August

By the end of August, the average daytime temperature in McAllen is around 38°C, while nighttime temps are about 27°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

Find affordable trips to McAllen

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 McAllen runs from June to November.

Check out the climate of McAllen for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in McAllen, Texas. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in McAllen

Temperature in August in McAllen over the years

Precipitation charts

These charts show the average amount of precipitation in August in McAllen, 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 August in McAllen

Total precipitation in August in McAllen over the years

Daily UV index in August in McAllen

This chart shows the average daily UV index in August in McAllen, 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 August in McAllen

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Average weather in McAllen by month

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