Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Maricopa, United States, where the hot BWh climate often leads to elevated sun exposure. Knowing the UV levels not only helps in preventing painful sunburn but also promotes long-term skin health by encouraging protective measures. With peak UV Index values reaching an extreme 11 during midday hours, it's essential for Maricopa's community to stay informed and take appropriate precautions against the risks of overexposure. Whether you're enjoying outdoor activities or just savoring the Arizona sunshine, keeping tabs on the UV Index can make a significant difference in your skin's safety and overall well-being.
The UV Index dramatically rises throughout the morning, starting at a mild 1 at 7:00 AM and reaching a peak of 11 by noon, marking a period of intense sun exposure. From 10:00 AM to 13:00 PM, the index remains at high levels, suggesting it’s crucial to take protective measures, such as wearing sunscreen and seeking shade. As the afternoon progresses, the UV Index gradually declines, dipping to a manageable 4 by 4:00 PM, before settling back to 1 by 6:00 PM. This data highlights the importance of being aware of UV levels, especially during peak hours, to ensure safety and minimize skin damage.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes indicate significant variations in sun exposure risk. During the high-risk months of March through August, UV Index levels peak, reaching extreme levels (11-12) from April to July. It's crucial for both visitors and residents to take protective measures, particularly in these months, where the burn time drops to just 10 minutes. Even in September and October, with UV levels still classified as very high, caution is warranted. For safety, individuals should utilize sunscreen, wear protective clothing, and limit sun exposure during peak hours. In contrast, the moderate UV months of January, November, and December offer a reprieve, allowing for longer safe exposure times of 30 minutes. Regularly checking the UV index can help mitigate skin damage and promote sun safety year-round.
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 |
| Maricopa | 4 | 6 | 9 | 11 | 11 | 12 | 11 | 11 | 10 | 8 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |