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Weather in Grand Canyon, Arizona for August 2026

Your guide to Grand Canyon weather in August - trends and predictions

    Temperatures

  • So far, August 2026 in Grand Canyon is slightly warmer than the historical average by 1 °F.

  • Expect cooler weather in the next days in Grand Canyon with the forecast suggesting a temperature of 29.8 °F, lower than the historical average.

  • In general, the average temperature in Grand Canyon at the beginning of August is 32.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.1 °F by the end of August.

    • Rain 🌧️

  • Grand Canyon experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 35.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/18°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
30 %
Avg humidity

Grand Canyon Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
33°
2
Sunny
33°
3
Sunny
33°
4
Sunny
32°
5
Sunny
32°
6
Sunny
32°
7
Partly cloudy
33°
8
Sunny
33°
9
Sunny
33°
10
Sunny
32°
11
Sunny
31°
12
Sunny
27°
13
Patchy rain possible
20°
14
Sunny
25°
15
Sunny
26°
16
Sunny
28°
17
Sunny
29°
18
Sunny
30°
19
Sunny
33°
20
Sunny
34°
21
Sunny
34°
22
Sunny
35°
23
Moderate rain at times
28°
24
Patchy rain possible
23°
25
Moderate rain at times
27°
26
Sunny
25°
27
Sunny
25°
28
Overcast
25°
29
Partly cloudy
26°
30
Moderate rain at times
27°
31
Patchy light rain
28°

Temperatures trend during August in Grand Canyon

See the weather trend as well as the moving average line

August weather in Grand Canyon day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 33° /20° 0 mm 11
Aug. 2 Sunny
Sunny
 33° /20° 0 mm 11
Aug. 3 Sunny
Sunny
 33° /19° 0 mm 11
Aug. 4 Sunny
Sunny
 32° /18° 0 mm 11
Aug. 5 Sunny
Sunny
 32° /19° 0.1 mm 11
Aug. 6 Sunny
Sunny
 32° /19° 1 mm 12
Aug. 7 Partly cloudy
Partly cloudy
 33° /19° 0.4 mm 11
Aug. 8 Sunny
Sunny
 33° /21° 0.6 mm 12
Aug. 9 Sunny
Sunny
 33° /22° 0.6 mm 9.5
Aug. 10 Sunny
Sunny
 32° /20° 0.9 mm 9.7
Aug. 11 Sunny
Sunny
 31° /16° 22.1 mm 9.9
Aug. 12 Sunny
Sunny
 27° /16° 17.4 mm 9.4
Aug. 13 Patchy rain possible
Patchy rain possible
 20° /15° 9.5 mm 4
Aug. 14 Sunny
Sunny
 25° /17° 1.8 mm 6
Aug. 15 Sunny
Sunny
 26° /19° 0 mm 7
Aug. 16 Sunny
Sunny
 28° /19° 0.1 mm 7
Aug. 17 Sunny
Sunny
 29° /21° 0.4 mm 7
Aug. 18 Sunny
Sunny
 30° /20° 0.6 mm 8
Aug. 19 Sunny
Sunny
 33° /22° 0 mm 8
Aug. 20 Sunny
Sunny
 34° /22° 0 mm 8
Aug. 21 Sunny
Sunny
 34° /21° 3.3 mm 8
Aug. 22 Sunny
Sunny
 35° /22° 0 mm 8
Aug. 23 Moderate rain at times
Moderate rain at times
 28° /18° 2.2 mm 7
Aug. 24 Patchy rain possible
Patchy rain possible
 23° /16° 1.4 mm 5
Aug. 25 Moderate rain at times
Moderate rain at times
 27° /17° 0.4 mm 6
Aug. 26 Sunny
Sunny
 25° /14° 5.1 mm 6
Aug. 27 Sunny
Sunny
 25° /15° 0 mm 6
Aug. 28 Overcast
Overcast
 25° /16° 0 mm 6
Aug. 29 Partly cloudy
Partly cloudy
 26° /16° 0 mm 6
Aug. 30 Moderate rain at times
Moderate rain at times
 27° /16° 0.6 mm 7
Aug. 31 Patchy light rain
Patchy light rain
 28° /18° 1 mm 7
Next
Important Notice
Our weather forecast for Grand Canyon in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand Canyon forecast closer to your planned date for the most up-to-date weather information.
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Grand Canyon in August - FAQ

What are the expected maximum and minimum temperatures in Grand Canyon during August?
During August, expect a variety of temperatures with highs around 29° and lows near 18°, suitable for diverse activities and preferences.

How much rainfall should be expected in Grand Canyon during August?
In August, Grand Canyon can expect light to moderate rainfall, totaling 35.7 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Grand Canyon during August?
The average wind speed in Grand Canyon during August is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Grand Canyon

Explore the daily rainfall trends and prepare for Grand Canyons August weather 💧
Typically, Grand Canyon has 7 rainy days in August with a total of 35.7 mm of rainfall.

UV exposure in Grand Canyon during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Grand Canyon?

Get accurate weather forecasts for Grand Canyon, located at latitude 36.054 and longitude -112.139. Stay updated with localized weather information tailored for Grand Canyon.

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