UV index in Charleston Heights today
Charleston Heights is an inland South Carolina suburb at 32.9°S. Typical summer peaks of 10–12 (very high to extreme) arrive whether the day feels scorching or merely mild. 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 Charleston Heights
Peak UV, temperature and conditions for Charleston Heights. 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 Charleston Heights can still sit at protection levels. Why you burn on cloudy days.
When Charleston Heights needs sun protection
Sun protection is needed in Charleston Heights 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 Charleston Heights need sun protection?
- Whenever the UV index is 3 or above. In Charleston Heights 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 Charleston Heights need sun protection in winter?
- Not every day. Midwinter middays in Charleston Heights 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 Charleston Heights?
- Yes. UV is not heat. A cool, windy or lightly cloudy day in Charleston Heights 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.