Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Annandale, United States, where the climate in the Dfb zone can lead to significant sun exposure, particularly during the summer months. Awareness of UV levels not only helps in preventing painful sunburns but also plays a vital role in maintaining long-term skin health. With midday UV indices peaking at 10, the risk of skin damage escalates, emphasizing the need for protective measures during outdoor activities. Stay informed and shield yourself from the sun's harmful rays to enjoy all that Annandale has to offer safely!
The UV Index today reveals a clear pattern of solar intensity peaking as the day progresses. Starting at a low 1 at 07:00, it steadily climbs to 2 by 08:00 and further to 3 by 09:00. The sun asserts its dominance with a 6 at 10:00, escalating dramatically to 8 at 11:00. The intensity reaches its zenith with a staggering 10 from 13:00 to 14:00, the point at which sun safety becomes crucial. As the afternoon wears on, the index begins to taper off, dropping to 8 at 15:00, and further cooling to 4 by 17:00. The evening ushers in a return to more manageable levels, with 2 at 18:00 and winding down to 1 by 19:00. Plan your outdoor activities wisely, savoring the sun's rays during the peak hours while taking precautions to protect your skin!
| 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 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | 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 |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annandale | 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 |