Saguaro National Park (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saguaro National Park.
Climate overview of Saguaro National Park
Saguaro National Park, Arizona, United States of America, sees big temperature differences between seasons, with June peaking at 39°C (102°F) and January dropping to 18°C (64°F).
Rainfall is modest, totalling around 282 mm (11 in) annually. The city experiences a distinct dry season from September to June. July tends to be the wettest month. The most sunshine falls in May, with an average of 13.4 hours of daily sunshine.
Saguaro National Park Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saguaro National Park — and find the best time to visit.
Monthly Temperature in Saguaro National Park
Visitors to Saguaro National Park can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very hot 39°C (102°F) in June, the warmest time of the year, to a pleasant 18°C (64°F) during cooler months like January.
At night, you can expect temperatures ranging from 24°C (75°F) in June to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saguaro National Park
Saguaro National Park typically sees modest rainfall throughout the year, with an average annual precipitation of 282 mm (11 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, July it receives moderate rainfall, averaging 66 mm (2.6 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month May brings less rainfall, with 1.9 mm (0.1 in) over a single rainy day. For more details, please visit our Saguaro National Park Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Saguaro National Park
While the amount of sunshine in Saguaro National Park varies throughout the year, all seasons offer their own charm. Enjoy up to 13.4 hours of daily sun in May, and experience slightly darker atmosphere in December, with about 8.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Saguaro National Park by Month
The relative humidity is low throughout the year in Saguaro National Park.
The city experiences its highest humidity in December, reaching 50%. In June, the humidity drops to its lowest level at 21%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Saguaro National Park
The weather does bring rainfall during this period, between 5 mm (0.2 in) and 31 mm (1.2 in). Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Saguaro National Park
What is the best time to visit Saguaro National Park?
January, February, March, April and November typically offer the most optimal weather in Saguaro National Park. In contrast, June, July, August and September tend to have less optimal conditions. Saguaro National Park has a distinct dry season from September to June.
What temperatures can I expect in Saguaro National Park?
Daytime highs range from 18°C (64°F) in January to 39°C (102°F) in June. Nighttime lows range from 4°C (39°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Saguaro National Park get?
Annual rainfall is around 282 mm (11 in). July is the wettest month with 66 mm (2.6 in), while May is the driest with 1.9 mm (0.1 in).
How sunny is Saguaro National Park?
Saguaro National Park receives around 3,806 hours of sunshine per year. May is the sunniest month with 401 hours, while December is the cloudiest with just 246 hours. Overall, Saguaro National Park enjoys abundant sunshine.
Saguaro National Park 3-Day Forecast
Saguaro National Park (AZ) 3-Day Forecast
Saguaro National Park on the map
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