Tucson (AZ) Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Tucson, Arizona, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

While the amount of sunshine in Tucson changes moderately throughout the year, the annual total remains impressive at around 3806 hours. Expect slightly brighter days in May and a subtle dip in December.

Daily hours of sunshine

This means you will experience moderate variation in sunshine hours throughout the year. With 13.4 hours daily sunshine in May, it dips to 8.2 hours in December.

Average percent of sunshine

On average the sun shines 94% of the time during the day in May, the highest percentage of any month. July has the lowest percentage at 79%.

Tucson enjoys an average of 3806 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

Beijing, China, has 2505 hours of sunshine annually, with clear, sunny days in winter.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

July, Tucson’s wettest month, receives 7.7 mm (0.3 in) of rainfall and has a maximum daytime temperature of 37°C (99°F). During the driest month May you can expect a temperature of 32°C (90°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Tucson Precipitation page.