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Monument Valley weather in August 2026
Expect daytime maximum temperatures of 32°C in Monument Valley, Arizona in August and high heat and humidity based on long-term weather averages. There are 11 hours of sunshine per day on average.
- 32°C max day temperature
32 - 11 hours of sunshine per day
- 8 days with some rainfall
8 - 14°C min night temperature
14 - 14 hours of daylight per day
14 - High heat & humidity
H - 28 mm of monthly rainfall
28 - 10 (Very High) UV index
10
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Recommended for Arizona
The August weather guide for Arizona (Monument Valley) 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)
More about Arizona
How hot is it in Monument Valley in August?
Daytime temperatures usually reach 39°C in Monument Valley in August with very high heat and humidity, falling to 24°C at night.
How sunny is it in Monument Valley in August?
There are normally 12 hours of bright sunshine each day in Monument Valley in August - that's 86% of daylight hours.
Does it ever rain in Monument Valley in August?
There are usually 5 days with some rain in Monument Valley in August and the average monthly rainfall is 32mm.
Monument Valley August sunrise & sunset times
Browse the sunrise and sunset times for Monument Valley in August 2026. Select a month to view Monument Valley sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 05:26 | 19:28 |
| Sunday, 16th August 2026 | 05:39 | 19:11 |
| Monday, 31st August 2026 | 05:51 | 18:50 |
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