Last updated: June 2, 2025
In Port Aransas, Texas, staying informed about the UV Index is crucial for safeguarding your skin and overall health. Understanding the UV levels can help prevent painful sunburns and reduce long-term risks of skin damage, especially during peak hours when the index soars—reaching a high of 12 around midday. With a Cfa climate that offers ample sunshine year-round, Port Aransas residents and visitors alike should remain vigilant about their sun exposure. By checking the UV Index regularly, you can enjoy the beautiful beaches while taking the necessary precautions to protect your skin.
The UV Index throughout the day reveals a striking pattern of sun intensity. Starting the morning at a low level of 1 at 07:00 and 08:00, the sun gains strength as the day advances. By 10:00, it reaches a moderate 5, and the real heat kicks in at 12:00, peaking at an impressive 10. The intensity escalates further, hitting a maximum of 12 from 13:00 to 14:00, indicating a significant risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually decreases to 7 by 16:00, before tapering off to 4 at 17:00, and finally returning to a mild 1 by 19:00. This data serves as a reminder to stay sun-safe during those peak hours when the UV Index soars!
| 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 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | 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, the UV Index reveals notable seasonal changes in sun exposure risk. High-risk months typically span from February to September, with March through August showing extreme UV levels of 11 to 12, where the burn time significantly decreases to just 10 minutes. In particular, April, May, June, July, and August are critical, maintaining this extreme classification. Visitors and residents are urged to take necessary precautions during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during midday hours. As the year progresses, UV levels taper off, with November showing a high index of 7 and December reducing to a moderate 5, allowing for safer sun exposure conditions.
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 |
| Port Aransas | 6 | 8 | 9 | 11 | 11 | 12 | 12 | 12 | 11 | 9 | 7 | 5 |