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Weather in Grand Canyon, Arizona for August 2025

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

    Official Weather Alert ⚠️

  • Flood Watch - See hour by hour.

    • Temperatures

  • Until now, August 2025 in Grand Canyon has been nearly identical to the historical average, with a temperature of 30.5 °F (showing only a slight deviation of 0.5 °F).

  • The forecast for the upcoming days in Grand Canyon predicts a temperature of 27.4 °F, which is slightly above the historical average.

  • In general, the average temperature in Grand Canyon at the beginning of August is 31.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.3 °F by the end of August.

    • Rain 🌧️

  • Grand Canyon experiences moderate rainfall in August, with an average of 9 rainy days and a total precipitation of 49.9 mm.

    • More

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

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/18°
Temperatures
Average wind speed
28 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
30°
2
Sunny
30°
3
Sunny
31°
4
Sunny
31°
5
Sunny
31°
6
Sunny
32°
7
Partly cloudy
33°
8
Sunny
31°
9
Sunny
30°
10
Partly cloudy
31°
11
Sunny
30°
12
Sunny
32°
13
Partly cloudy
32°
14
Overcast
31°
15
Thundery outbreaks possible
26°
16
Sunny
27°
17
Sunny
27°
18
Overcast
29°
19
Patchy rain possible
30°
20
Patchy rain possible
31°
21
Moderate or heavy rain shower
29°
22
Moderate or heavy rain shower
28°
23
Moderate rain at times
28°
24
Patchy rain possible
23°
25
Weather Alert Cloudy
26°
26
Weather Alert Moderate rain
24°
27
Cloudy
24°
28
Sunny
27°
29
Sunny
29°
30
Partly cloudy
28°
31
Patchy rain possible
26°

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
 30° /18° 0 mm 8
Aug. 2 Sunny
Sunny
 30° /18° 0 mm 8
Aug. 3 Sunny
Sunny
 31° /17° 0 mm 8
Aug. 4 Sunny
Sunny
 31° /17° 0 mm 8
Aug. 5 Sunny
Sunny
 31° /18° 0 mm 8
Aug. 6 Sunny
Sunny
 32° /19° 0 mm 8
Aug. 7 Partly cloudy
Partly cloudy
 33° /21° 0 mm 8
Aug. 8 Sunny
Sunny
 31° /21° 0 mm 8
Aug. 9 Sunny
Sunny
 30° /19° 0 mm 8
Aug. 10 Partly cloudy
Partly cloudy
 31° /19° 0 mm 8
Aug. 11 Sunny
Sunny
 30° /18° 0 mm 8
Aug. 12 Sunny
Sunny
 32° /18° 0 mm 8
Aug. 13 Partly cloudy
Partly cloudy
 32° /18° 0 mm 8
Aug. 14 Overcast
Overcast
 31° /20° 0 mm 7
Aug. 15 Thundery outbreaks possible
Thundery outbreaks possible
 26° /17° 6.7 mm 6
Aug. 16 Sunny
Sunny
 27° /15° 0 mm 7
Aug. 17 Sunny
Sunny
 27° /15° 0 mm 7
Aug. 18 Overcast
Overcast
 29° /17° 0 mm 6
Aug. 19 Patchy rain possible
Patchy rain possible
 30° /18° 0.1 mm 7
Aug. 20 Patchy rain possible
Patchy rain possible
 31° /20° 0.3 mm 7
Aug. 21 Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /19° 5 mm 7
Aug. 22 Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /18° 12.9 mm 7
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 Cloudy
Cloudy
 26° /18° 0 mm 1.9
Aug. 26 Moderate rain
Moderate rain
 24° /16° 9.9 mm 1.3
Aug. 27 Cloudy
Cloudy
 24° /15° 0 mm 1.9
Aug. 28 Sunny
Sunny
 27° /16° 0 mm 2.4
Aug. 29 Sunny
Sunny
 29° /20° 0 mm 0
Aug. 30 Partly cloudy
Partly cloudy
 28° /21° 0 mm 7
Aug. 31 Patchy rain possible
Patchy rain possible
 26° /21° 0.7 mm 5
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 49.9 mm across approximately 9 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 28 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 💧

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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