Last updated: May 3, 2025
Understanding the UV Index is essential for the residents of Ladysmith, United States, as it serves as a crucial guide for sun safety and skin health. With the typical Dfb climate in the area exposing locals to varying degrees of ultraviolet radiation, being aware of UV levels can help prevent sunburn and long-term skin damage. During the peak hours of sunlight, particularly between 11 AM and 3 PM, the UV Index can soar to high levels—reaching as much as 9—putting even the most vigilant sunbathers at risk. Stay informed and protect your skin by keeping a close eye on the UV Index as you plan your outdoor activities!
As the day unfolds, the UV Index soars to its peak during the midday hours, reaching a maximum of 9 at 1:00 PM. Early risers will notice a milder UV level; at 7:00 AM, it's a mere 1, gradually climbing to 2 by 8:00 AM. As the sun climbs higher, the intensity intensifies — 3 by 9:00 AM, surging past 5 at 10:00 AM, and hitting 7 at 11:00 AM. The sun's power reaches its zenith at 12:00 PM, where it hits 8, before peaking at 1:00 PM. Following this peak, the UV Index starts to decline, with a gentle drop to 8 at 2:00 PM, further decreasing to 6 at 3:00 PM. By late afternoon, the readings dip to 3 at 5:00 PM, then fall to 2 by 6:00 PM, and finally retreat to 1 as daylight wanes at 7:00 PM. It's a compelling reminder to stay protected during the sun's most intense hours!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | 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 |
The UV Index exhibits significant seasonal changes, with the highest levels occurring from April to August. During this peak period, particularly in May and June, the UV Index reaches 10 and 9, categorized as very high, indicating a burn time of only 15 minutes. Visitors and residents should pay special attention to April through August as these months represent the highest risk for UV exposure. In contrast, January, December, and November show much lower UV levels, categorized as low or moderate, allowing for longer exposure times of 30 to 45 minutes without significant risk. It is advisable for individuals to seek shade, wear protective clothing, and apply sunscreen, particularly during the high-risk months from April to August, to minimize the chance of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ladysmith | 2 | 4 | 5 | 7 | 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 |