Dallas weather in August 2026

Expect daytime maximum temperatures of 35°C in Dallas, Texas in August and very high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 54 mm of rainfall in the month.

  • 35°C maximum daytime temperature in August in Dallas35
    35°C max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in August in Dallas5
    5 days with some rainfall
  • 24°C minimum night-time temperature in August in Dallas24
    24°C min night temperature
  • 13 hours of daylight per day in August in Dallas13
    13 hours of daylight per day
  • Very high heat & humidity in August in DallasVH
    Very High heat & humidity
  • 54 mm monthly rainfall in August in Dallas54
    54 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Dallas10
    10 (Very High) UV index

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The August weather guide for Texas (Dallas) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Dallas in August?

Daytime temperatures usually reach 35°C in Dallas in August with very high heat and humidity, falling to 24°C at night.

How sunny is it in Dallas in August?

There are normally 10 hours of bright sunshine each day in Dallas in August - that's 73% of daylight hours.

Does it rain in Dallas in August?

There are usually 5 days with some rain in Dallas in August and the average monthly rainfall is 54mm.

What is the chance of a hurricane in Dallas in August?

On average less than 1 day in August in Dallas is likely to be affected by the passage of one or more tropical storms.

Dallas August sunrise & sunset times

Browse the sunrise and sunset times for Dallas in August 2026. Select a month to view Dallas sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 05:41 19:25
Sunday, 16th August 2026 05:51 19:11
Monday, 31st August 2026 06:01 18:53

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