Last updated: June 2, 2025
Understanding the UV Index in Running Springs, United States is crucial for protecting your skin and overall health. With varying UV levels throughout the day, being aware of these fluctuations can help you prevent sunburn and minimize the risk of long-term skin damage. Running Springs, situated in a temperate climate zone (Csa), experiences significant UV exposure, especially during peak hours between 10 AM and 2 PM when the index can soar to 12—a level that necessitates serious sun safety measures. Stay informed and embrace the beautiful outdoors while safeguarding your skin!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 9:00 AM, it reaches a moderate 5, but soon after, the intensity peaks. At 11:00 AM, the index hits 10, and by noon, it soars to a scorching 12, indicating a high risk of harm from unprotected sun exposure. The afternoon maintains this intensity, with the index remaining steady at 12 until 1:00 PM, before gradually declining. By 3:00 PM, it starts its descent to 8, then dips further to 6 by 4:00 PM, and settles back to a safer 2 by 6:00 PM. As the sun begins to set, the evening returns to a minimal 1 by 7:00 PM, reminding us to enjoy the daytime sun responsibly.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal variation, peaking between March and August when exposure levels reach extreme categories. Notably, April, May, and June have the highest readings at 11 and 12, indicating a burn time as short as 10 minutes during these months. Visitors and residents should be particularly cautious from March to August, with March and April marking the onset of these high-risk months. During this time, it is advisable to wear protective clothing, apply sunscreen frequently, and seek shade whenever possible, especially during midday hours. As fall approaches, the UV Index begins to decline, offering slightly safer conditions in October and November, yet vigilance is still recommended during these months with moderate exposure.
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 |
| Running Springs | 4 | 6 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 8 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |