Last updated: July 2, 2025
In {place.place.name}, understanding the UV Index is crucial for enjoying the great outdoors safely, especially in our beautiful parks. The risk of sunburn increases significantly as UV levels peak throughout the day, reaching a maximum of 12 between noon and 1 PM. By being aware of these levels, you can protect your skin and promote long-term health—ensuring that your adventures under the Csb climate's sun don’t come at the cost of your well-being. As you explore, keep an eye on the UV Index; it’s a simple yet effective tool for sun safety that allows you to make the most of your time outdoors while minimizing the risks associated with excessive sun exposure.
At 07:00, the UV Index starts at a modest 1, indicating low exposure risk. As the sun rises higher in the sky, the intensity escalates, reaching 3 by 08:00 and 6 by 09:00. The peak arrives at 12:00, with the index soaring to a maximum of 12, denoting a very high risk of harm from unprotected sun exposure. It remains intense through 13:00, before gradually tapering off—slipping to 11 at 14:00 and then decreasing further to 8 by 15:00. As the day winds down, the UV Index declines to 5 at 16:00 and continues its descent to 3 by 17:00, eventually resettling at a low 1 by 18:00 and lingering there until 19:00. This clear pattern underscores the importance of sun protection during peak hours, especially between 10:00 and 14:00 when the UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 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 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal changes, with higher levels occurring from February to October. March through September sees the most intense UV exposure, categorized as very high to extreme, with burn times as short as 10 minutes during peak months like April, May, June, July, and August. Notably, the highest risk months are April to August, where the UV Index reaches 12 and poses serious health risks. Residents and visitors are strongly advised to take precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours. As the UV Index decreases in late autumn and winter, particularly in January and December (UV Index 4), the risk of sunburn becomes more manageable, but vigilance is still recommended.
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 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |
| Parks | 4 | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 8 | 6 | 4 |