Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Epsom, United States, where the Dfb climate brings significant sun exposure throughout the year. By monitoring UV levels, you can take essential steps to prevent sunburn and maintain healthy skin. With peak UV Index readings reaching as high as 10 at noon, it's vital to be aware of when the sun's rays are the strongest and protect yourself accordingly. Whether you’re enjoying outdoor activities or simply basking in the sun, keeping an eye on the UV Index can help you stay safe and healthy in Epsom’s sunny environment.
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Epsom | 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 |