St George weather in May 2026

Expect daytime maximum temperatures of 30°C in St George, Utah in May based on long-term weather averages. There are 12 hours of sunshine per day on average.

  • 30°C maximum daytime temperature in May in St George30
    30°C max day temperature
  • 12 hours of sunshine per day
  • 3 days with some rainfall in May in St George3
    3 days with some rainfall
  • 12°C minimum night-time temperature in May in St George12
    12°C min night temperature
  • 14 hours of daylight per day in May in St George14
    14 hours of daylight per day
  • Low heat & humidity in May in St GeorgeL
    Low heat & humidity
  • 11 mm monthly rainfall in May in St George11
    11 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in St George9
    9 (Very High) UV index

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The May weather guide for Utah (St George) 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 St George in May?

Daytime temperatures usually reach 30°C in St George in May with low heat and humidity, falling to 12°C at night.

How sunny is it in St George in May?

There are normally 12 hours of bright sunshine each day in St George in May - that's 83% of daylight hours.

Does it ever rain in St George in May?

There are usually 3 days with some rain in St George in May and the average monthly rainfall is 11mm.

St George May sunrise & sunset times

Browse the sunrise and sunset times for St George in May 2026. Select a month to view St George sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:40 19:24
Saturday, 16th May 2026 05:25 19:37
Sunday, 31st May 2026 05:16 19:48

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