Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Greenville, United States, where the Csb climate leads to varying sun exposure throughout the seasons. The UV Index provides essential insights into the sun’s intensity, guiding you in protecting your skin from harmful UV rays that can cause sunburn and long-term health issues. With peak levels reaching an intense 11 during midday, it’s vital to be aware of the risks and take precautions. Whether you're enjoying outdoor activities or simply soaking in the sun, knowing the UV levels can help you maintain your skin health and enjoy Greenville's beautiful weather safely.
The UV Index today paints a vivid picture of solar intensity, peaking dramatically between 12:00 PM and 2:00 PM with a striking 11—a warning to seek shade and protect skin. Starting the day at a gentle 1 at 7:00 AM, the index gradually climbs, reaching 4 by 9:00 AM and escalating to 9 by 11:00 AM. As the sun reaches its zenith, the index hits 11, indicating extreme conditions that persist for a solid three hours. Following this midday blast, it gracefully declines to 6 by 4:00 PM, before tapering off to a safer 1 by the evening. Remember to stay sun-smart during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 4 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 9 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 11 | extreme | 10 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 |
As the seasons change, so do the UV levels, significantly impacting skin health. From January to February, the UV Index remains at a moderate level (4-5), allowing for approximately 30 minutes of safe exposure. However, come March through August, the UV Index escalates sharply, peaking at 12 in May and June, indicating extreme risk with a rapid burn time of just 10 minutes. September marks a decline to a very high UV level of 9, followed by lower indices in October (7), November (5), and December (3), where burn times increase back to 25-30 minutes. Visitors and residents should exercise caution during the high-risk months of March to August, opting for protective measures such as sunscreen, hats, and sunglasses to minimize UV exposure and prevent skin damage.
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 |
Greenville | 4 | 5 | 8 | 10 | 12 | 12 | 11 | 11 | 9 | 7 | 5 | 3 |
Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |