Last updated: May 3, 2025
In San Leon, Texas, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike make informed decisions about sun exposure, especially during the peak hours when the UV index reaches dangerous levels—such as between 11 AM and 1 PM when values soar to a severe 11 and 12. Given San Leon's humid subtropical climate, sun safety is vital year-round, as the combination of high temperatures and UV radiation can pose serious health risks. Stay informed to protect your skin and enjoy the sunny days that San Leon has to offer!
As the sun rises, the UV Index remains low, starting at a gentle 1 at 7:00 AM and 8:00 AM. However, as the morning progresses, a gradual increase is observed, reaching 3 by 9:00 AM. The intensity peaks dramatically at 12:00 PM with an alarming 11, and it hits its maximum of 12 at 1:00 PM, indicating a significant risk of harm from unprotected sun exposure. The UV levels then begin to taper off, descending to 9 by 3:00 PM and dropping further to 2 by 6:00 PM. As the day winds down, the index returns to a mild 1 by 7:00 PM, reminding us that while midday sun can be fierce, caution is advised at peak hours for skin safety.
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV Index levels, significantly affecting the risk of skin damage from sun exposure. January and December have a moderate UV Index of 5, allowing for a burn time of 30 minutes. However, by February, the UV levels escalate to 8, marking the beginning of very high exposure with a reduced burn time of 15 minutes. The risk peaks in the summer months, particularly April through August, where the UV Index reaches a maximum of 12, classified as extreme, necessitating protective measures within just 10 minutes. September and October see a slight decline to very high levels of 10 and 9, respectively, while November cools to a high risk of 7 with a burn time of 25 minutes. Visitors and residents are advised to take precautions during the high-risk months of February to August, utilizing sunscreen, protective clothing, and seeking shade, particularly during peak sun hours, to minimize sun damage and maintain skin health.
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 |
| San Leon | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |