Last updated: July 2, 2025
In Bell, United States, being aware of the UV Index is crucial for safeguarding your skin health and preventing sunburn. The UV Index provides essential information about the strength of solar UV radiation, particularly during the peak hours of sunlight. Understanding these levels can help you take appropriate precautions to protect against harmful effects, especially when the index reaches a high of 11 around midday. Bell's Cfa climate typically features warm summers, increasing the risk of overexposure to UV rays. By staying informed about the UV Index, residents can enjoy the sun while keeping their skin safe and healthy.
The UV Index reveals a dynamic daily pattern, starting from a low of 1 at 7:00 AM, and gradually climbing to a peak of 11 between 1:00 PM and 2:00 PM. As the sun reaches its zenith, 12:00 PM also sees a high of 10, signaling an urgent need for sun protection. After this peak, a downward trend persists, with readings dropping to 7 by 4:00 PM, and further declining to 1 by 7:00 PM. This data underscores the importance of remaining vigilant about UV exposure during the midday hours when the risk is greatest, highlighting the necessity of precautions like sunscreen and protective clothing.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | 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 | 11 | extreme | 10 min |
| 15:00 | 9 | 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 |
Throughout the year, UV Index levels fluctuate significantly, with high-risk months typically occurring from April to August. In April, the UV Index reaches 10, classified as very high, and remains at 11 in May, June, and July, indicating an extreme risk of harm from unprotected sun exposure. During these peak months, safe sun exposure time diminishes sharply, with burn times dropping to just 10 minutes in the extreme conditions. As summer fades, September sees the UV Index slightly lower at 9, still categorized as very high, while both October and February bring back high levels with indices of 7. Visitors and residents are strongly advised to take precautions during these high UV periods, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during midday hours to minimize sunburn risk.
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 |
| Bell | 4 | 6 | 7 | 10 | 11 | 11 | 11 | 10 | 9 | 7 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |