Grand Canyon (AZ)
May
Weather in Grand Canyon, Arizona for May 2026
Your guide to Grand Canyon weather in May - trends and predictions
In general, the average temperature in Grand Canyon at the beginning of May is 15.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.3 °F by the end of May.
Grand Canyon experiences moderate rainfall in May, with an average of 8 rainy days and a total precipitation of 22.7 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
21°/9°
Temperatures
23 km/h
Avg max wind
34 %
Avg humidity
Grand Canyon Weather May
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Temperatures trend during May in Grand Canyon
See the weather trend as well as the moving average line
May weather in Grand Canyon day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Moderate rain at times | 19° /6° | 0.6 mm | 4 | |
| May 2 |  Partly cloudy | 18° /8° | 0 mm | 5 | |
| May 3 |  Heavy rain at times | 19° /7° | 2.2 mm | 4 | |
| May 4 | Moderate rain at times | 15° /6° | 2.3 mm | 4 | |
| May 5 | Moderate rain at times | 11° /3° | 2.4 mm | 3 | |
| May 6 | Moderate or heavy rain shower | 12° /3° | 9.1 mm | 3 | |
| May 7 | Moderate rain at times | 14° /4° | 1.3 mm | 3 | |
| May 8 |  Sunny | 20° /8° | 0 mm | 6 | |
| May 9 | Sunny | 24° /9° | 0 mm | 6 | |
| May 10 |  Cloudy | 23° /11° | 0 mm | 5 | |
| May 11 | Sunny | 24° /10° | 0 mm | 6 | |
| May 12 | Cloudy | 23° /12° | 0 mm | 5 | |
| May 13 | Sunny | 18° /8° | 0 mm | 5 | |
| May 14 | Heavy rain at times | 14° /3° | 1.8 mm | 3 | |
| May 15 | Sunny | 19° /6° | 0 mm | 5 | |
| May 16 | Sunny | 20° /6° | 0 mm | 6 | |
| May 17 |  Overcast | 19° /9° | 0 mm | 4 | |
| May 18 | Moderate rain at times | 16° /4° | 3 mm | 4 | |
| May 19 | Sunny | 14° /4° | 0 mm | 4 | |
| May 20 | Sunny | 21° /5° | 0 mm | 6 | |
| May 21 | Sunny | 25° /12° | 0 mm | 7 | |
| May 22 | Sunny | 27° /12° | 0 mm | 7 | |
| May 23 | Sunny | 26° /12° | 0 mm | 7 | |
| May 24 | Overcast | 23° /11° | 0 mm | 5 | |
| May 25 | Sunny | 22° /9° | 0 mm | 6 | |
| May 26 | Partly cloudy | 24° /11° | 0 mm | 6 | |
| May 27 | Overcast | 23° /13° | 0 mm | 5 | |
| May 28 | Partly cloudy | 24° /13° | 0 mm | 6 | |
| May 29 | Overcast | 27° /14° | 0 mm | 6 | |
| May 30 | Overcast | 28° /16° | 0 mm | 6 | |
| May 31 | Partly cloudy | 29° /17° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Grand Canyon in May 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 May - FAQ
What are the expected maximum and minimum temperatures in Grand Canyon during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grand Canyon during May?
In May, Grand Canyon can expect light to moderate rainfall, totaling 22.7 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Grand Canyon during May?
The average wind speed in Grand Canyon during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Grand Canyon
Explore the daily rainfall trends and prepare for Grand Canyons May weather 💧
UV exposure in Grand Canyon during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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