Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Tyndall Air Force Base, United States, where sun exposure can lead to significant skin health issues. The UV Index measures the intensity of ultraviolet radiation, which peaks between late morning and early afternoon. With levels reaching as high as 12 during the summer months, awareness of these fluctuations is vital for sunburn prevention and overall skin health. Given Tyndall's Cfa climate, characterized by warm summers, it’s essential for outdoor enthusiasts and military personnel alike to stay informed about UV risks to safeguard their health while enjoying the great outdoors.
The UV Index throughout the day showcases a striking pattern, peaking at an impressive 12 by 1 PM. Beginning with a gentle start of 1 at 7 AM, the index steadily climbs, hitting 10 by 11 AM and reaching its zenith at 12 during the warmest hour. As the afternoon progresses, a decline occurs, with the index tapering off to 8 at 3 PM, and gradually dropping to 1 by 6 PM. This indicates that the highest UV exposure is between 11 AM and 1 PM, urging outdoor enthusiasts to take precautions during these hours.
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 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 |
Throughout the year, UV index levels exhibit significant seasonal variations, with the highest exposure occurring during the summer months. January starts with a moderate UV index of 5, allowing for a burn time of 30 minutes. However, as February approaches, the UV index escalates to 8 (very high), significantly reducing burn time to 15 minutes. The peak months, from March to August, witness extreme UV levels ranging from 9 to 12, leading to a burn time as low as 10 minutes in May through August. Post-summer, the index begins to decline, with September at 10 and October at 9, both categorized as very high. By late fall and winter, in November and December, the levels drop to 6 and 5 respectively, classified as high and moderate, with burn times extending to 25 and 30 minutes. Visitors and residents are strongly advised to take precautions during the high-risk months of February through August, by wearing protective clothing, applying sunscreen regularly, and limiting sun exposure, particularly during peak hours to safeguard against harmful UV radiation.
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 |
| Tyndall Air Force Base | 5 | 8 | 9 | 10 | 11 | 11 | 12 | 11 | 10 | 9 | 6 | 5 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |