Last updated: June 2, 2025
In Nashville, understanding the UV Index is crucial for protecting your skin and overall health. With the city’s Cfa climate, residents and visitors face varying UV levels throughout the day, making it essential to be aware of when the sun’s rays are strongest. Knowing the UV Index helps prevent sunburn and long-term skin damage, especially during peak hours when the index can soar to 11—a level that signifies a very high risk of harm from unprotected sun exposure. Stay informed and enjoy Nashville's sunny days safely!
At 07:00, the UV Index is a gentle 1, signaling a low level of UV radiation. As the sun climbs, it gradually rises, reaching a moderate 3 by 09:00. The intensity peaks spectacularly at 12:00 with a powerful 10, indicating a high risk of harm from unprotected sun exposure. For those brave enough to venture out, it's crucial to take precautions, especially between 13:00 and 14:00, when it hits its zenith at 11. The afternoon sees a slow decline, tapering down to 5 by 17:00 and further reducing to a mild 2 as evening approaches at 18:00. Finally, the day concludes with the UV Index dropping back to a safe 1 by 19:00, making for a relaxing end to a sun-soaked day.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 5 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 10 | very high | 15 min |
13:00 | 11 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 10 | very high | 15 min |
16:00 | 7 | high | 25 min |
17:00 | 5 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, with the highest risk observed during the spring and summer months. From February to August, the UV Index remains at a very high to extreme level, peaking at 11 in May, June, July, and August, where the burn time is as short as 10 minutes. Visitors and residents are advised to take extra precautions during these months by wearing protective clothing, applying sunscreen regularly, and seeking shade, especially during midday hours. In contrast, January and December experience moderate UV levels, allowing for longer exposure times of 30 minutes before burning. As the UV levels decline entering the fall months, particularly in November with a high index of 6 (burn time of 25 minutes), it is still prudent to remain vigilant against UV exposure.
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 |
Nashville | 5 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 6 | 4 |
Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |