Last updated: May 3, 2025
In the charming town of Rainier, United States, being aware of the UV Index is crucial for safeguarding your skin health and preventing painful sunburns. Understanding daily UV levels can help residents and visitors alike make informed decisions about sun protection, especially during those peak hours when UV exposure is highest, as indicated by the rising index from 3 to 8 between 10:00 AM and 2:00 PM. Given the area's Csb climate, characterized by mild summers and varying cloud cover, it's easy to underestimate sun exposure risks, but taking a moment to check the UV Index can make all the difference in enjoying the great outdoors safely.
The UV index throughout the day reveals a fascinating pattern of sun intensity. Early risers will notice a gentle start at 1 around 7:00 AM, gradually climbing to a moderate 3 by 9:00 AM. As the sun reaches its peak, the index hits 6 at 11:00 AM, escalating to an impressive 8 from 12:00 PM to 2:00 PM—the height of solar exposure. After this, the UV levels begin to wane, dropping to 7 at 3:00 PM, and further decreasing to moderate numbers of 5, 3, and 2 as the sun sets, concluding the day with a calm 1 at 7:00 PM. Remember, during the peak hours, sun safety is crucial!
| 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 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | 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 |
Throughout the year, the UV Index shows significant seasonal variation, impacting the risk of skin damage from sun exposure. January sees a low UV Index of 2, gradually rising to 3 in February and March, where the exposure risk becomes moderate. As spring transitions into summer, the UV Index peaks during May through August, reaching a high of 9 in June and July, indicating a very high risk of harm with a burn time as quick as 15 minutes. In contrast, September drops to a high category of 7, followed by a return to moderate levels in October and November, while December ends the year with a very low index of 1. Visitors and residents are advised to take special precautions during the high-risk months of May through August, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during the peak sun hours to minimize the risks associated with high UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainier | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 1 |
| 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 |