Temperatures in August
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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for McAllen in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in McAllen with hot temperatures, averaging around 38°C during the day and nights close to 27°C. There’s little chance of precipitation. The weather is mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-August
By mid-August, the average daytime temperature stays the same at 38°C, with nights close to 27°C. There might be a few showers during this period, but plenty of dry days with sunshine too. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of August
By the end of August, the average daytime temperature in McAllen will be around 38°C, with nights close to 27°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Discover cheap trips to McAllen 
Precipitation in August
In August, there is an average of 47 mm of precipitation, spread over 2 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
The average chance of precipitation is only 8% in August.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for McAllen. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
McAllen in August |
London | ||
|---|---|---|---|
 Average Temperature |
38°C | 22°C | |
 High Temp |
39°C | 24°C | |
| Low Temp |
37°C | 19°C | |
 Total Precipitation |
47 mm | 60 mm | |
| Rainy Days |
2 days | 10 days | |
July
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.
Is August a good time to visit McAllen?
August isn’t a good time to be in McAllen. The average temperature of 38°C this month is uncomfortably hot for a pleasant stay.
The hurricane season in McAllen runs from June to November.
Temperature records for McAllen in August
With 42°C, McAllen hit the highest temperature in the last 10 years in August 2016. The lowest daytime temperature in this month was 29°C in 2022. The extreme night temperatures ranged from a low of 22°C to a high of 29°C.
Check out the climate of McAllen for all months and discover the best travel time
Plan your next holiday
Don’t miss the best holiday deals for McAllen and see what our partners have for you.
Daily Temperature in August in McAllen
This chart shows the average daily temperatures, both day and night, for each day in August in McAllen, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in McAllen
The chart below shows the average daily precipitation in August for McAllen, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 2 days of rain in McAllen.
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.
Temperature in August in McAllen Over the Years
This chart shows the average temperature in August in McAllen, measured in degrees Celsius, over the past years.
Total Precipitation in August in McAllen Over the Years
This chart shows the average precipitation in August in McAllen, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for McAllen
Click on a specific day in August for detailed info on the typical weather on that day in McAllen. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in McAllen
Have you been to McAllen in August?
Share your weather experience in August in McAllen.
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.
