UV index in Atlanta today
The Atlanta CBD sits at 33.7°S. Street shade helps in the lanes, not in the plazas: January middays commonly run 10–12 (very high to extreme), and a cool southerly does not lower the index. 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 Atlanta
Peak UV, temperature and conditions for Atlanta. 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 Atlanta can still sit at protection levels. Why you burn on cloudy days.
When Atlanta needs sun protection
Sun protection is needed in Atlanta typically from April through October, and any other day UV reaches 3. A shaded laneway is not a shaded day: step into a plaza or the commute and the index is the one on this page.
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 Atlanta need sun protection?
- Whenever the UV index is 3 or above. In Atlanta 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 Atlanta need sun protection in winter?
- Not every day. Midwinter middays in Atlanta often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Does city shade protect you from UV in Atlanta?
- Only while you stay in it. Buildings cut some sky, but plazas, crossings and glass bounce UV onto uncovered skin. The live index on this page is the open-sky reading. Treat lunch outside as full-sun time whenever it is 3 or above.