Grand Canyon weather in August 2025

Expect 32°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Grand Canyon in August. Check more long-term weather averages for Grand Canyon in August before you book your next holiday to Arizona in 2025/2026.

  • 32°C maximum daytime temperature in August in Grand Canyon32
    32°C max day temperature
  • 11 hours of sunshine per day
  • 7 days with some rainfall in August in Grand Canyon7
    7 days with some rainfall
  • 14°C minimum night-time temperature in August in Grand Canyon14
    14°C min night temperature
  • 13 hours of daylight per day in August in Grand Canyon13
    13 hours of daylight per day
  • Low heat & humidity in August in Grand CanyonL
    Low heat & humidity
  • 39 mm monthly rainfall in August in Grand Canyon39
    39 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Grand Canyon10
    10 (Very High) UV index

More about Grand Canyon

Grand Canyon by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Arizona

  • Save on flights to Canada, USA & the rest of the Americas
  • Book online for low fares with Air Canada
  • Fly to Toronto, Vancouver, New York, Cancun & more

The August weather guide for Arizona (Grand Canyon) 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)

Back to top

More about Arizona

How hot is it in Grand Canyon in August?

Daytime temperatures usually reach 32°C in Grand Canyon in August with low heat and humidity, falling to 14°C at night.

How sunny is it in Grand Canyon in August?

There are normally 11 hours of bright sunshine each day in Grand Canyon in August - that's 79% of daylight hours.

Does it rain in Grand Canyon in August?

There are usually 7 days with some rain in Grand Canyon in August and the average monthly rainfall is 39mm.

Grand Canyon August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:36 19:33
Saturday, 16th August 2025 05:48 19:17
Sunday, 31st August 2025 06:00 18:57

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^