Last updated: June 2, 2025
In Mount Pleasant, United States, understanding the UV Index is crucial for protecting your skin and maintaining healthy sun habits. With our climate categorized as Cfa, residents and visitors alike face varying levels of ultraviolet radiation throughout the day, peaking around midday when UV levels can reach a high of 11. Being aware of these UV exposure risks is essential for preventing sunburn and reducing long-term skin damage. Whether you're enjoying a leisurely day outdoors or engaging in more vigorous activities, keeping track of the UV Index can help you make informed decisions and safeguard your skin’s health. Remember, awareness today can lead to better skin tomorrow!
The UV Index dramatically peaks during the midday hours, showcasing a clear pattern of solar intensity. Starting from a mild 1 at 07:00, it steadily rises, reaching a notable 11 by 13:00. This peak signifies a high risk for skin damage, urging sun safety precautions. As the afternoon progresses, the index gradually declines—falling to 9 at 15:00, and decreasing further to 2 by 18:00. With the sun's intensity waning, the cooler evening hours promise a gentle close to the day, offering a more comfortable outdoor experience. Always stay vigilant during peak UV times!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | 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 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | 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 displays significant seasonal fluctuations that warrant attention from both visitors and residents. From January (UV Index 4, moderate exposure) to February (UV Index 6, high exposure), there is a notable increase in ultraviolet radiation, leading to higher sunburn risk. The months of March through June represent high-risk periods, with UV Index values peaking at 11 in June (extreme exposure) and maintaining levels above 8 until September. During this summer surge, burn times can dwindle to as little as 10 minutes in June. September to October shows a slight decrease, though values remain high (UV Index 9-8). Following this, November and December return to more moderate levels (UV Index 5 and 3), allowing for longer exposure times without an immediate burn risk. It is advisable for everyone to stay vigilant during the high-risk months, particularly from March to September, and to employ protective measures such as wearing sunscreen and protective clothing, especially during peak hours.
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 |
| Mount Pleasant | 4 | 6 | 8 | 10 | 10 | 11 | 10 | 10 | 9 | 8 | 5 | 3 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |