Last updated: August 1, 2025
In Hammond, United States, being aware of the UV Index is essential for protecting your skin from harmful solar radiation. Understanding UV levels can drastically reduce the risks of sunburn and long-term skin health issues, making it crucial to check daily forecasts. With Hammond's humid continental climate, characterized by hot summers and frequent sunny days, residents face significant UV exposure, particularly during midday hours when the index peaks at 9. Stay informed and safe to enjoy the beautiful outdoors without compromising your skin's health!
The UV Index data reveals a dramatic rise in solar intensity as the day progresses, peaking at 9 between 12:00 PM and 2:00 PM. Beginning with a mild 1 at 7:00 AM, it escalates steadily to 3 by 9:00 AM and hits 5 at 10:00 AM. As the sun climbs higher, caution is advised with a 7 at 11:00 AM before reaching that intense 9 during midday. The intensity then begins to taper off, dropping to 7 at 3:00 PM and gradually decreasing to 4 by 5:00 PM. The evening brings relief as the index falls back to 2 by 6:00 PM, and finally settles at 1 by 7:00 PM. This data highlights the importance of sun safety measures, particularly during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | 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 | 7 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hammond | 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 |