Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents of Powhatan Point, United States, where the climate, categorized as Cfa, brings a mix of warm summers and moderate winters. Understanding UV levels is vital for sunburn prevention and maintaining long-term skin health, especially since UV exposure peaks in the early afternoon, reaching a maximum of 10 between 1 PM and 2 PM. With this heightened risk, staying informed and taking protective measures during the summer months can help safeguard your skin from harmful effects.
The UV Index chart reveals a dynamic daily pattern of solar intensity. Starting early in the day, the UV Index remains low, peaking at 1 by 08:00. However, as the sun reaches its zenith, the index surges dramatically—hitting 7 by 11:00 and soaring to a maximum of 10 between 13:00 and 14:00. This signals a critical window for sun exposure, where protection is essential. As the afternoon progresses, the UV levels begin to decline, dropping to 4 by 17:00, before tapering off to 1 again by evening. To stay safe, it's vital to be cautious during those peak hours!
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 | 9 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 10 | very high | 15 min |
15:00 | 9 | very high | 15 min |
16:00 | 7 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal fluctuations, with the highest levels occurring during the summer months. From March to September, the UV index reaches high to very high levels, peaking in May, June, and July at an index of 10, indicating a burn time of just 15 minutes. April also sees very high exposure with an index of 9. The months of March and October feature higher indexes of 7 and 6 respectively, classified as high, while the winter months of January, February, November, and December are categorized as moderate with indexes ranging from 3 to 5, allowing for longer exposure times of 30 minutes. Therefore, residents and visitors are advised to exercise extra caution during the high-risk months of April to September by using sunscreen, wearing protective clothing, and seeking shade, particularly during peak sun hours, to minimize the risk of 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 |
Powhatan Point | 3 | 5 | 7 | 9 | 10 | 10 | 10 | 9 | 8 | 6 | 5 | 3 |
Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |