Houston weather in August 2025

Expect 33°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Houston in August. Check more long-term weather averages for Houston in August before you book your next holiday to Texas in 2025/2026.

  • 33°C maximum daytime temperature in August in Houston33
    33°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in August in Houston9
    9 days with some rainfall
  • 24°C minimum night-time temperature in August in Houston24
    24°C min night temperature
  • 13 hours of daylight per day in August in Houston13
    13 hours of daylight per day
  • Very high heat & humidity in August in HoustonVH
    Very High heat & humidity
  • 100 mm monthly rainfall in August in Houston100
    100 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Houston10
    10 (Very High) UV index

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The August weather guide for Texas (Houston) 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 Houston in August?

Daytime temperatures usually reach 33°C in Houston in August with very high heat and humidity, falling to 24°C at night.

How sunny is it in Houston in August?

There are normally 9 hours of bright sunshine each day in Houston in August - that's 67% of daylight hours.

Does it rain in Houston in August?

There are usually 9 days with some rain in Houston in August and the average monthly rainfall is 100mm.

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

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

Houston August sunrise & sunset times

Browse the sunrise and sunset times for Houston in August 2025. Select a month to view Houston sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:41 19:14
Saturday, 16th August 2025 05:50 19:01
Sunday, 31st August 2025 05:58 18:45

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