Grand Canyon (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grand Canyon.
Climate overview of Grand Canyon
Grand Canyon, Arizona, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 32°C (90°F) in July, while winters cool to 8°C (46°F) in December.
The city has a relatively dry climate, receiving around 313 mm (12 in) of rain/snowfall per year. It does experience a distinct dry season from September to June, with very warm summers and cold winters. August is the wettest month and June the driest.
Grand Canyon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grand Canyon - and find the best time to visit.
Monthly Temperature in Grand Canyon
Depending on the time of the year, temperatures range from very warm to chilly in Grand Canyon. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a chilly 8°C (46°F) in December.
Nighttime temperatures range from 16°C (61°F) in July to -5°C (23°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grand Canyon
Grand Canyon maintains relatively dry conditions year-round, recording average annual precipitation of 313 mm (12 in). The seasons in Grand Canyon bring significant changes in precipitation. The wettest month, August, receives moderate rainfall, with an average of 58 mm (2.3 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 7.2 mm (0.3 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Grand Canyon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Grand Canyon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, September and October
- Warmest weather: June and July
- Fewest rainy days: April, June and November
- Seasonal pattern: A distinct dry season from September to June, with very warm summers and cold winters
- Coldest conditions: December, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Grand Canyon
What is the best time to visit Grand Canyon?
April, May, September and October typically offer the most optimal weather in Grand Canyon. In contrast, December tends to have less optimal conditions. Grand Canyon has a distinct dry season from September to June, with very warm summers and cold winters.
What temperatures can I expect in Grand Canyon?
Daytime highs range from 8°C (46°F) in December to 32°C (90°F) in July. Nighttime lows range from -5°C (23°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Grand Canyon get?
Annual rainfall is around 313 mm (12 in). August is the wettest month with 58 mm (2.3 in), while June is the driest with 7.2 mm (0.3 in).
Grand Canyon 3-Day Forecast
Grand Canyon on the map
Grand Canyon is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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