UV index in Ali Ak Chin today
Ali Ak Chin in Arizona sits inland at 31.9°S, where dry air and fewer clouds often mean harsher UV than the temperature suggests. Summer middays typically reach 10–12 (very high to extreme). This is warm-temperate America: a long protection season from spring through fall, with clear winter days that can still burn.
Live reading · data by Open-Meteo · reference monitoring by ARPANSA
Today and tomorrow in Ali Ak Chin
Peak UV, temperature and conditions for Ali Ak Chin. 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 Ali Ak Chin can still sit at protection levels. Why you burn on cloudy days.
When Ali Ak Chin needs sun protection
Sun protection is needed in Ali Ak Chin typically from April through October, and any other day UV reaches 3. 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 Ali Ak Chin need sun protection?
- Whenever the UV index is 3 or above. In Ali Ak Chin that is typically from April through October, and any other day UV reaches 3. The EPA Sun Safety action steps apply at the same threshold used worldwide.
- Does Ali Ak Chin need sun protection in winter?
- Not every day. Midwinter middays in Ali Ak Chin often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Can you burn on a cool day in Ali Ak Chin?
- Yes. UV is not heat. A cool, windy or lightly cloudy day in Ali Ak Chin 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.