UV index in Mount Harmony today
Mount Harmony is a Tennessee mountain suburb at 35.3°S. Typical summer peaks of 9–11 (very high to extreme) are no milder for being above the plains. 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 Mount Harmony
Peak UV, temperature and conditions for Mount Harmony. 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 high-country day in Mount Harmony can still sit at protection levels. Why you burn on cloudy days.
When Mount Harmony needs sun protection
Sun protection is needed in Mount Harmony typically from April through October, and any other day UV reaches 3. Altitude lets more UV through; a cool lookout is still protection weather when the index is 3 or above.
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 Mount Harmony need sun protection?
- Whenever the UV index is 3 or above. In Mount Harmony 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 Mount Harmony need sun protection in winter?
- Not every day. Midwinter middays in Mount Harmony 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 Mount Harmony?
- Yes. UV is not heat. A cool, windy or lightly cloudy day in Mount Harmony 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.