Last updated: July 2, 2025
In Arcadia, United States, understanding the UV Index is essential for safeguarding your skin's health under the sun's rays. With a climate categorized as Cfa, residents and visitors alike should be aware that UV levels can soar, especially during midday hours when they peak at 12. By staying informed about UV index readings, you can effectively prevent sunburns and long-term skin damage, ensuring your outdoor activities remain enjoyable and safe. As the sunny days in Arcadia beckon, keep an eye on those UV levels and protect your skin from potential harm!
The UV Index throughout the day reveals a striking pattern of sun intensity. Starting the morning at a low level of 1 at 07:00 and 08:00, the sun gains strength as the day advances. By 10:00, it reaches a moderate 5, and the real heat kicks in at 12:00, peaking at an impressive 10. The intensity escalates further, hitting a maximum of 12 from 13:00 to 14:00, indicating a significant risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually decreases to 7 by 16:00, before tapering off to 4 at 17:00, and finally returning to a mild 1 by 19:00. This data serves as a reminder to stay sun-safe during those peak hours when the UV Index soars!
| 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 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | 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 |
The UV Index displays significant seasonal changes, reaching its peak during the summer months. February through September are particularly high-risk months, with UV Index values ranging from 9 to 12, indicating categories from very high to extreme. The most intense exposure occurs from April to August, where the burn time drops to as little as 10 minutes. It is crucial for visitors and residents to practice sun safety during these months by wearing appropriate sunblock, protective clothing, and seeking shade whenever possible. As the year progresses into October and November, UV levels decrease, yet caution is still advised, particularly in the early spring and summer, to minimize skin damage. Always be prepared and check the UV Index regularly to ensure safe outdoor activities.
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 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |
| Arcadia | 6 | 9 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 9 | 7 | 5 |