Yosemite National Park is definitely worth a visit
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Oro Valley (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oro Valley.
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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 two distinct dry seasons, January to June and September to November, with very hot summers and mild winters. 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
Data from: Tucson, the United States of America (30 KM, 19 Miles).
Daily hours of sunshine
Data from: Tucson, the United States of America (30 KM, 19 Miles).
Daily percentage of sunshine
Data from: Tucson, the United States of America (30 KM, 19 Miles).
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
Data from: Tucson, the United States of America (30 KM, 19 Miles).
Best Time to Visit Oro Valley
The most comfortable overall weather for exploring Oro Valley is usually found in February, March, April and November. Conditions are generally least comfortable in June, July, August and September.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very good
Feb
excellent
Mar
excellent
Apr
excellent
May
very good
Jun
very hot
Jul
very hot
Aug
very hot
Sep
very hot
Oct
very good
Nov
excellent
Dec
very good
- Best overall: February, March, April and November
- Warmest weather: June and July
- Most sunshine: May and June
- Seasonal pattern: Two distinct dry seasons, January to June and September to November, with very hot summers and mild winters
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 two distinct dry seasons, January to June and September to November, with very hot summers and mild winters.
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 on the map
Oro Valley is highlighted - select any city to see its climate.
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