Weather in Dallas in August 2025
- August is usually the hottest month of the year in Dallas;
- August is usually the driest month of the year in Dallas
Average weather
Average temperature in Dallas in August
Going from a maximum of +43°C during the day to a minimum of +21°C during the night, the temperature in August averages around +40°C.
The average maximum temperature goes down 23% by the end of the month, compared with the beginning of the month, from +41°C to +36°C.
Is Dallas warm or cold in August?
Dallas is typically hot in August.
Maximum temperatures go up compared to the previous month from +35°C to +36°C. The minimum temperature also goes up from +25°C to +25°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is the hottest month in Dallas, here is the comparison with other months:
Climate in Dallas in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +35°C | +36°C | +32°C | ||||
| Min. temperature | ||||||
| +17°C | +14°C | +6°C | ||||
| Max. temperature | ||||||
| +44°C | +43°C | +43°C | ||||
| Rainfall | ||||||
| 43 mm | 54 mm | 63 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 59% | 57% | 61% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 10 | 10 | 11 | ||||
| Cloudy days | ||||||
| 9 | 10 | 8 | ||||
| Rainy days | ||||||
| 7 | 7 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August typically has worse weather conditions compared to July. It’s getting warmer as August arrives. The average maximum temperature goes up from +35°C to +36°C during the day. Prepare for more rain. Average rainfall goes from 43 mm to 54 mm. It feels drier, as humidity decreases from 59% to 57%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 10 sunny days during the month.
But maybe it is worth considering traveling in September as the weather gets better.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Dallas is gradually decreasing during August, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Dallas?
Climate Change over Years
The climate in Dallas in August has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+23°C) and the highest in 2012 (+27°C). The driest year was 2005 with only 460 mm of rainfall, and the wettest year was 2020 with 1551 mm.
FAQ
Is August a good time to visit Dallas?
Can you sunbathe in Dallas in August?
Is Dallas rainy in August?
Is it sunny in Dallas in August?
Other cities in USA
Monthly weather in Dallas
Source of the data
For this page, we’ve looked at the typical weather in Dallas, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.