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UV Index in Tucson

UV index


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Today's UV index in Tucson, United States United States will be up to 10.9, indicating a very high level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.


Today's tips

With a UV index of 10.9 in Tucson, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.

Tucson's UV Index

The UV index in Tucson, Arizona is often high due to its desert climate and location near the equator. It can reach extreme levels during peak sunlight hours, making sun protection essential for outdoor activities.

Weather Seasons

UV index

Tucson has two main seasons: a hot, dry summer and a mild, wet winter. Summer temperatures can exceed 100°F (38°C), while winter temperatures rarely drop below freezing. Spring and fall are characterized by warm days and cool nights.

Tucson's Climate

Compared to its region and neighboring countries, Tucson is hotter and drier than many other areas in the United States. Its climate is more similar to that of Mexico, which lies to the south, than to cities in the northern or eastern parts of the U.S.

Annual Sun Radiation

The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Tucson. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in Tucson (United States) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.