Last updated: May 3, 2025
In Mossyrock, Washington, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, especially during the peak midday hours when the index can reach as high as 9. With a Csb climate that offers warm summers and mild winters, residents and visitors alike should remain vigilant about the increased UV exposure risks during sunny days. Stay informed and enjoy the outdoors safely by keeping an eye on the UV Index!
At 07:00, the UV Index begins at a mild 1, perfect for a leisurely morning stroll. As the sun rises higher, it gradually climbs to 2 by 08:00 and reaches 3 at 09:00. The intensity really kicks in at 10:00, jumping to 5, and soars to its peak of 9 by 13:00. This high exposure continues through 14:00, making midday the most crucial time for sun protection. As the afternoon wanes, the index dips to 7 at 15:00, then continues to decline to 5 at 16:00 and settles back to 3 by 17:00. The evening brings relief with a return to 2 by 18:00 and finally drops to 1 at 19:00. Make sure to stay protected 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | 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 |
As the seasons change, the UV Index reflects varying levels of solar exposure that can significantly impact skin health. From January to February, the UV Index rises from 2 (low) to 4 (moderate), indicating a need for basic sun protection as burn times decrease from 45 minutes to 30 minutes. By April, the UV Index reaches 7 (high), marking the start of high-risk months when exposure should be limited to 25 minutes. The peak UV levels occur in May and June, with values of 9 and 10 (very high) respectively, where burn times plummet to just 15 minutes. Even in August, the UV Index remains at 8, while it begins to decline in September to 7 (high), allowing for 25 minutes of safer exposure. As we transition toward winter, the UV Index drops to 3 (moderate) in November and returns to 2 (low) in December, offering safer scorch-free time of 30 to 45 minutes. Visitors and residents are advised to remain vigilant about UV exposure, particularly during the summer months, and to apply sunscreen and wear protective clothing during peak hours to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mossyrock | 2 | 4 | 5 | 7 | 9 | 10 | 10 | 8 | 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 |