Last updated: June 2, 2025
Understanding the UV Index in Porter, United States is crucial for protecting your skin and overall health. With the town's climate classified as Dfb, residents experience varying UV exposure that can lead to sunburn and long-term skin damage if precautions aren’t taken. Knowledge of UV levels is vital—especially since the index peaks at 10 around noon, indicating a high risk of harm from the sun's rays. By staying informed about UV Index readings, you can make smarter decisions about sun protection, ensuring that your time outdoors is both enjoyable and safe.
As the sun rises, the UV Index starts its climb, peaking spectacularly around midday. At 07:00, it registers a mild 1, barely a whisper of sunlight. By 08:00, it nudges up to 2, signaling a gentle reminder to start considering protection. However, the real intensity hits at 10:00, where the index reaches 7, a clear indication that the sun is getting serious. At 11:00, it surges to a striking 9, and by 12:00 and 13:00, it reaches its zenith at 10—a moment to take shade and apply sunscreen diligently! The afternoon sees a gradual decline, with levels easing to 9 at 14:00, and 7 by 15:00. As the day winds down, the index descends to 5 at 16:00, 3 at 17:00, and returns to a gentle 1 by 19:00, wrapping up a day of fluctuating sun intensity. Remember, during those peak hours, protecting your skin is essential!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with high-risk months typically from April to August, where the UV Index peaks at levels of 8 to 10, resulting in a very high exposure category and a quick burn time of just 15 minutes. In contrast, the winter months of January, February, and December feature a much lower UV Index, ranging from 2 to 4, which is classified as low to moderate, allowing for longer exposure times of 30 to 45 minutes without significant risk. To protect against harmful UV rays, it’s crucial for visitors and residents alike to use sunscreen, wear protective clothing, and seek shade during the peak sun hours, especially from April to August when sun safety practices should be a top priority.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Porter | 3 | 4 | 5 | 8 | 9 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |
| 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 |