Last updated: June 2, 2025
In Machias, United States, being aware of the UV Index is crucial for protecting your skin from harmful solar radiation. Understanding the UV levels is essential not only for preventing painful sunburns but also for maintaining long-term skin health and reducing the risk of skin cancer. With a Dfb climate, Machias experiences varying sunlight exposure, especially during peak hours when the UV Index can soar to 10. By keeping an eye on these levels, residents and visitors can take proactive measures to safeguard their skin while enjoying the beautiful outdoors. Stay informed, stay safe!
As the sun rises, the UV Index gradually increases, starting at a mild 2 at 07:00. By 08:00, it climbs to 3, indicating a need for some sun protection. However, the intensity of UV rays peaks at 12:00 and 13:00, reaching an impressive 10—a level that warrants serious caution. From there, the UV Index begins to decline, dropping to 8 by 14:00 and gradually tapering off to 5 by 16:00. Finally, as the day winds down, the index falls to 3 at 17:00 and settles at a minimal level of 1 by 18:00 and 19:00. It's clear that midday calls for the most vigilance against sun exposure, making protection essential during those peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits notable seasonal variations, with the highest levels occurring during the summer months. May and June stand out as the months with the highest risk, featuring very high UV Index values of 9 and 10, respectively, allowing for a burn time as short as 15 minutes. From April to August, the UV exposure is particularly concerning, with values of 7 or more, categorizing these months as high to very high risk for skin damage. Visitors and residents are strongly advised to take precautions during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during midday hours when UV radiation is at its peak. As we transition into fall and winter, the UV Index decreases, becoming low in January and December, providing a reprieve from intense sun exposure and longer burn times of 45 minutes.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Machias | 2 | 4 | 5 | 7 | 9 | 10 | 8 | 8 | 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 |