When does Arroyo Alto need sun protection?

Whenever the UV index is 3 or above. In Arroyo Alto that is most of the year, including many winter middays. The EPA Sun Safety action steps apply at the same threshold used worldwide.

Does Arroyo Alto need sun protection in winter?

Usually yes. At 26.1°N, winter middays in Arroyo Alto still commonly reach UV 3 or higher. Check today's live reading on this page before a long lunch outside.

Can you burn on a cool day in Arroyo Alto?

Yes. UV is not heat. A cool, windy or lightly cloudy day in Arroyo Alto can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.

UV index in Arroyo Alto today

Arroyo Alto is an inland Texas suburb at 26.1°S. Typical summer peaks of 11–13 (extreme) arrive whether the day feels scorching or merely mild. This is subtropical sun: protection weather for much of the year, with winter middays that still often reach 3 or more.

Live reading · data by Open-Meteo · reference monitoring by ARPANSA

Today and tomorrow in Arroyo Alto

Peak UV, temperature and conditions for Arroyo Alto. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.

Weather conditions right now

Cloud and rain cut heat more than they cut UV. A partly cloudy day in Arroyo Alto can still sit at protection levels. Why you burn on cloudy days.

When Arroyo Alto needs sun protection

Sun protection is needed in Arroyo Alto most of the year, including many winter middays. Inland heat or a cool change does not change the UV index; go by the number, not how the day feels.

The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.

The UV scale at a glance

0–2Low
3–5Moderate
6–7High
8–10Very high
11+Extreme

Frequently asked questions

When does Arroyo Alto need sun protection?: Whenever the UV index is 3 or above. In Arroyo Alto that is most of the year, including many winter middays. The EPA Sun Safety action steps apply at the same threshold used worldwide.
Does Arroyo Alto need sun protection in winter?: Usually yes. At 26.1°N, winter middays in Arroyo Alto still commonly reach UV 3 or higher. Check today's live reading on this page before a long lunch outside.
Can you burn on a cool day in Arroyo Alto?: Yes. UV is not heat. A cool, windy or lightly cloudy day in Arroyo Alto can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.