Last updated: June 2, 2025
In Saint James, United States, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn, particularly during the peak summer months when UV radiation levels can soar. Understanding these UV levels helps residents and visitors alike to protect themselves from harmful skin damage associated with overexposure. With a Dfa climate characterized by hot summers, Saint James experiences significant UV exposure, especially between 10 AM and 4 PM, when the index reaches its maximum levels of 10. Knowing when to seek shade, apply sunscreen, or wear protective clothing can make all the difference in enjoying the beautiful sunny days while keeping your skin safe.
As the sun rises, the UV Index steadily climbs, beginning at a moderate 1 at 07:00. By 08:00, it reaches 2, indicating a slight rise in solar intensity. The index continues to peak dramatically, hitting a notable 6 by 10:00 and soaring to a maximum of 10 from 12:00 to 14:00, marking this time as the most intense period for UV exposure. As the afternoon wanes, the index begins to decline, dropping to 9 at 15:00, then gently falling to 4 by 17:00. Finally, as the day turns to dusk, the UV Index settles back to a safer 1 by 19:00. It's crucial to enjoy the sun wisely, particularly during those peak 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 | 6 | 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 | 10 | very high | 15 min |
| 15:00 | 9 | 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, the UV Index experiences significant fluctuations, particularly from spring through summer. High-risk months for UV exposure are from April to September, where the UV Index peaks at 10 in June and July, indicating a very high exposure category with a burn time of only 15 minutes for unprotected skin. In contrast, the winter months of December and January present lower levels, with UV Index values of 2 and 3 respectively, allowing for longer burn times of 45 and 30 minutes. Visitors and residents are strongly advised to take precautions during high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade when outdoors, especially during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Saint James | 3 | 5 | 5 | 8 | 9 | 10 | 10 | 9 | 8 | 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 |