Houston weather in May 2025

Expect daytime maximum temperatures of 28°C in Houston in May based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 118 mm of rainfall in the month.

  • 28°C maximum daytime temperature in May in Houston28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in May in Houston8
    8 days with some rainfall
  • 19°C minimum night-time temperature in May in Houston19
    19°C min night temperature
  • 14 hours of daylight per day in May in Houston14
    14 hours of daylight per day
  • Moderate heat & humidity in May in HoustonM
    Moderate heat & humidity
  • 118 mm monthly rainfall in May in Houston118
    118 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Houston10
    10 (Very High) UV index

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The May 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 May?

Daytime temperatures usually reach 28°C in Houston in May with moderate heat and humidity, falling to 19°C at night.

How sunny is it in Houston in May?

There are normally 8 hours of bright sunshine each day in Houston in May - that's 59% of daylight hours.

Does it rain in Houston in May?

There are usually 8 days with some rain in Houston in May and the average monthly rainfall is 118mm.

Houston May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:39 18:59
Friday, 16th May 2025 05:28 19:08
Saturday, 31st May 2025 05:22 19:17

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