What Is The UV Index?

Alert for dangerous values of UV index during the summerThe term “UV Index” is often referenced on the morning news and during weather reports, but are you fully aware of what the UV Index is?

UV Index, or the Ultraviolet Index, is a measure of the ultraviolet radiation emitted by the sun. These UV rays are known for causing sun damage, sun burn, and even skin cancer. “When we rate sunscreens,  we are really looking at how well or effective they are at blocking or deflecting UV rays from the skin,” says Dr. Adam Mamelak, a board certified Dermatologist and skin cancer specialist at Sanova Dermatology in Austin, Texas. The index is used to signify how severe these rays are at a given day or time. “It really allows patients to make good decision and the best choices for protecting themselves when spending time outside or during leisure activities.

The UV Index

Low (0-2) – This level of the index is a day where there is no strong concern about sunburn. It is still important to apply sunscreen regularly, as prolonged interaction with the sun, even on lower indexing days, can still lead to sunburn and an increased risk of skin cancer.

Moderate (3-5) – If you are outside, it is best to seek shade, wear UPF clothing, and reapply sunscreen often.

High (6-7) – High index days warrant more caution when going outdoors. Try staying indoors during peak times if possible (between 10 AM and 4 PM).

Very High (8-10) – Days where the UV Index is very high, the opportunity to burn is exceptionally high. If outdoors, it is best to seek shade and minimize time outdoors during peak times.

Extreme (11+) – On these days, it is best to avoid prolonged periods outside, if possible. Skin that is left unprotected could burn within minutes and sun damage could be on the severe side.

Even on the lowest indexing days, it is possible to experience a sunburn if outdoors for prolonged periods of time. It is also possible to receive magnified exposures from bright pavement, snow, and water. Or as Dr. Mamelak says, “there are no bad days to protect your skin.”

Contact US

If you have questions about sun damage, and the best ways to protect and care for your skin, please contact us today.

We Are Proud Members Of:
Book Online

Latest Specials & Promotions

View All

Book appointment by

Choose your area

  • Baton Rouge

    6411 Perkins Road, Baton Rouge, LA 70808 - (225) 303-9500
  • Lafayette

    1245 Camellia Boulevard, Lafayette, LA 70508 - (337) 839-2773
  • Bee Cave & Lakeway

    3944 RR 620 S. Bldg. 6, Bee Cave, TX 78738 - (512) 366-8568
  • Old Metairie

    701 Metairie Road, Metairie, LA 70005 - (504) 836-2050
  • Uptown

    3434 Prytania St., New Orleans, Louisiana 70115 - (504) 897-5899
  • Metairie

    111 Veterans Boulevard, Metairie, LA 70005 - (504) 838-8225
  • SBA Dermatology

    1900 Saint James Place, Houston, TX 77056 - (713) 850-0240
  • North Austin

    12319 North Mopac Expressway, Austin, Texas 78758 - (512) 837-3376
  • Central Austin

    3705 Medical Parkway, Austin, Texas 78705 - (512) 454-3781
  • Dripping Springs

    13830 Sawyer Ranch Road, Dripping Springs, TX 78620 - (512) 829-0009
  • Pflugerville

    1601 E. Pflugerville Parkway, Pflugerville, Texas 78660 - (512) 252-3700
  • Steiner Ranch

    5145 North FM 620 Rd, Austin, Texas 78732 - (512) 266-0007
  • Helyn Alvarez, MD

  • Daniel Barron, PA-C

  • Suzanne Bruce, MD

  • Daniel A. Carrasco, MD

  • Kristy Charles, MD

  • Ryan Couvillion, MD

  • Megan Couvillion, MD

  • Gretchen Donnes, PA-C

  • Leigh Ellen Eubanks, MD

  • Natalie Gibson, PA-C

  • Miriam L. Hanson, MD

  • Alicia Haslauer, PA-C

  • Agezi Igboko, FNP-C

  • Haneen Issa, PA-C

  • Jennifer Jordan, PA-C

  • Ted Lain, MD, MBA

  • Adam J. Mamelak, MD

  • Sharon Meyer, MD

  • Lesley Ott, FNP-C

  • Melanie Pickett, MD

  • Jeffrey C. Poole, MD

  • David W. Powell, MD

  • Chad Prather, MD

  • Maria “Gabi” Prudhomme, FNP-C

  • Marcela Ramirez, FNP-C

  • Diana Reyes, PA-C

  • Israel Rodriguez, PA-C

  • Katharine Saussy, MD

  • Candace Thrash, MD

  • Mamina Turegano, MD

  • Jennifer Vickers, MD

  • Micah Williams, PA-C

  • Laura Williams, MD