Last updated: July 2, 2025
Understanding the UV Index in Cary, United States is essential for protecting your skin and overall health, especially in this temperate Cfa climate where sunny days are prevalent. As UV levels can soar to 11 during midday, even short outdoor exposure can lead to sunburn and long-term skin damage. By monitoring the UV Index, residents can make informed decisions about sun safety, ensuring they enjoy the warm Carolina sunshine while minimizing the risks associated with harmful ultraviolet radiation. Stay informed to keep your skin healthy and safe!
The UV Index for today shows a dramatic rise as the sun ascends into the sky. Starting at a mild 1 by 07:00, the index gradually builds, reaching 3 by 09:00 and peaking at an intense 11 at 13:00—a level where sun protection is crucial. From this pinnacle, the values start to decline, tapering off to 10 at 14:00 and then gradually decreasing through the afternoon and evening, with values of 6 at 16:00 and sliding down to 1 by 19:00. Plan your outdoor activities accordingly, and remember to protect your skin during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 11 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 9 | very high | 15 min |
16:00 | 6 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, peaking during the late spring and summer months. High-risk months for UV exposure include April through August, where the UV Index reaches very high to extreme levels, particularly in May, June, and July, with a dangerous UV Index of 11 and a burn time as short as 10 minutes. As such, it is crucial for visitors and residents to take precautions during these months, including wearing sunscreen, protective clothing, and sunglasses, while seeking shade during peak sun hours. Conversely, the winter months show a decrease in UV risk, with January and December marked as having moderate exposure, allowing for longer burn times of 30 minutes. By staying informed and taking necessary precautions, individuals can enjoy outdoor activities while minimizing their risk of UV-related harm.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chicago UVI | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
Brooklyn UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
New York City UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
Cary | 4 | 6 | 8 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 5 | 3 |
Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |