Oro Valley (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oro Valley.
Climate overview of Oro Valley
Oro Valley, Arizona, United States of America, sees big temperature differences between seasons, with June peaking at 38°C (100°F) and December dropping to 18°C (64°F).
The city tends toward dry conditions, with around 358 mm (14 in) of rain/snowfall per year. It does, however, have a distinct dry season from September to June. The sunniest month is May, with 13.4 hours of sunshine per day on average.
Oro Valley Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Oro Valley — and find the best time to visit.
Monthly Temperature in Oro Valley
Visitors to Oro Valley can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very hot 38°C (100°F) in June to a moderate 18°C (64°F) in the coolest month, December.
Nights vary from 23°C (73°F) in June to around 2°C (36°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oro Valley
Oro Valley tends toward drier weather patterns, receiving approximately 358 mm (14 in) of rain/snow per year. The climate in Oro Valley shows significant variation throughout the year. Expect moderate rainfall in July, the wettest month, with an average of 87 mm (3.4 in) of precipitation over 14 rainy days.
In contrast, the driest month May offers drier and sunnier days, with around 2.9 mm (0.1 in) of rainfall over a single rainy day. For more details, please visit our Oro Valley 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 Oro Valley
Oro Valley offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between May (13.4 hours daily) and December (8.2 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Oro Valley by Month
The relative humidity is low throughout the year in Oro Valley.
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 Oro Valley
The weather does bring rainfall during this period, between 7 mm (0.3 in) and 32 mm (1.3 in). Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Oro Valley
What is the best time to visit Oro Valley?
February, March, April and November typically offer the most optimal weather in Oro Valley. In contrast, June, July, August and September tend to have less optimal conditions. Oro Valley has a distinct dry season from September to June.
What temperatures can I expect in Oro Valley?
Daytime highs range from 18°C (64°F) in December to 38°C (100°F) in June. Nighttime lows range from 2°C (36°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Oro Valley get?
Annual rainfall is around 358 mm (14 in). July is the wettest month with 87 mm (3.4 in), while May is the driest with 2.9 mm (0.1 in).
How sunny is Oro Valley?
Oro Valley 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, Oro Valley enjoys abundant sunshine.
Oro Valley 3-Day Forecast
Oro Valley (AZ) 3-Day Forecast
Oro Valley on the map
Oro Valley is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.