Last updated: July 2, 2025
In Upton, United States, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential for effective sunburn prevention and long-term skin care, especially during those peak hours when the index skyrockets to 10 and 11 around midday. Given Upton’s semi-arid climate, characterized by sunny days in the BSk zone, the risks of harmful UV exposure can be significant. By keeping an eye on the UV Index, you can make informed decisions to enjoy the outdoors safely while safeguarding your skin against damage.
The UV Index data highlights a dramatic rise in sun intensity as the day progresses. Starting early at 1 around 7:00 AM, it gradually climbs to 10 by noon, peaking at a staggering 11 at 1:00 PM. This is the moment when UV exposure becomes most concerning, emphasizing the importance of sun protection. As the afternoon unfolds, the index gracefully tapers down, dipping to 8 by 3:00 PM and further declining to 4 by 5:00 PM. By the time evening rolls in, the UV Index settles back to 1 at 7:00 PM, signaling a reprieve from the midday sun. This data can be a crucial guide for planning outdoor activities safely throughout the day.
| 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 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | 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 |
Throughout the year, UV index levels fluctuate significantly, indicating varying risks for sun exposure. From January to March, the UV index starts at a moderate level (3) in January and increases to a high level (6) by March, suggesting residents and visitors should take precautions during this time. April to August marks the peak risk months, with UV indexes ranging from very high (10) in April and August to an extreme level (11) in June and July, where burn time is reduced to just 10 minutes. It is crucial to use sunscreen, wear protective clothing, and seek shade during these high-risk months. As September to October approaches, the UV index decreases, yet remains high (6) in October, requiring continued vigilance. The year concludes with lower UV levels in November (3—moderate) and December (2—low), offering a respite from the intense sun exposure of the summer months. Overall, it's important for everyone to adapt their sun protection strategies according to these seasonal changes.
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 |
| Upton | 3 | 5 | 6 | 10 | 9 | 11 | 11 | 10 | 8 | 6 | 3 | 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 |