Last updated: May 3, 2025
In Pleasant Hill, United States, staying informed about the UV Index is crucial for protecting your skin from harmful ultraviolet rays. Understanding the UV levels throughout the day not only helps in preventing painful sunburns but also contributes to long-term skin health. With a climate categorized as Dfa, Pleasant Hill often experiences higher UV exposure, particularly during midday hours when values soar to a maximum of 10. Being aware of these fluctuations can empower residents to take necessary precautions and enjoy the outdoors safely.
As the sun rises, the UV Index gradually climbs, starting at a modest 1 at 7:00 AM and reaching an energetic 2 by 8:00 AM. The intensity escalates quickly, peaking at a robust 10 between 12:00 PM and 1:00 PM—the ideal time to take extra sun safety precautions! By 2:00 PM, the index begins its gentle decline, settling to 9 at 2:00 PM, and gradually tapering off to a more manageable 3 by 5:00 PM. As evening approaches, the index dwindles to 1 by 6:00 PM, allowing for a calm end to the day. Remember, during peak hours, it’s crucial to protect your skin to enjoy the sunshine safely!
| 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 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with the highest risk occurring from April to September. In this period, the UV Index peaks at 11 in June (extreme), necessitating careful sun protection, as burn times drop to just 10 minutes. Notably, May and July also present very high levels, with an index of 10 and a burn time of 15 minutes. Conversely, the colder months, from November to February, feature lower UV ratings; however, even in these months, the burn time can be as little as 25 minutes during peak times. Visitors and residents are advised to take appropriate precautions during high-risk months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's intensity is greatest.
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 |
| Pleasant Hill | 3 | 6 | 6 | 9 | 10 | 11 | 10 | 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 |