Last updated: June 2, 2025
Understanding the UV Index is essential for residents of Oakley, United States, as it helps you stay informed about daily sun exposure and protect your skin from harmful ultraviolet rays. With the potential for high UV levels, particularly between 11:00 AM and 2:00 PM, being aware of this index can significantly aid in sunburn prevention and promote overall skin health. Oakley's Cfa climate contributes to varying UV exposure risks throughout the year, making it crucial for residents to stay vigilant and take appropriate precautions to enjoy the sun safely.
The UV Index today showcases a dramatic rise in intensity as the day progresses. Starting off at a mild 1 at 07:00 and 08:00, conditions remain safe for outdoor activities. However, as the clock strikes 10:00, the index escalates to a moderate 5, signaling the need for some sun protection. By 12:00, the UV Index peaks at an impressive 10—a strong rating that calls for serious caution. The day reaches its maximum intensity at 13:00 with a staggering 11, and then gradually tapers down to 12 at 14:00. As the afternoon rolls into evening, levels drop to 10 by 15:00, 8 at 16:00, and continue to decline to 3 by 18:00, before finishing the day at a restful 2 by 19:00. To enjoy the day safely, be sure to stay protected during the 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 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal variations, with high-risk months typically occurring from March to September. During these months, the UV Index escalates to levels categorized as high (7), very high (8-10), and extreme (11-12), particularly peaking in June with an Index of 12, indicating an urgent need for protective measures. Burn times drastically reduce to as low as 10 minutes in the peak summer months, underscoring the importance for residents and visitors to prioritize sun safety. As a precaution, it is advisable to limit sun exposure during these high UV periods, especially between the hours of 10 AM and 4 PM. During lower risk months, notably January, February, and December, UV levels remain moderate, allowing for safer outdoor activities, though sun protection is still recommended as UV rays can cause cumulative skin damage over time.
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 |
| Oakley | 4 | 5 | 7 | 9 | 10 | 12 | 11 | 10 | 9 | 6 | 4 | 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 |