Last updated: July 2, 2025
In Marion, United States, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors make informed decisions about outdoor activities, especially during peak hours when UV radiation is most intense. With a Cfa climate that features warm summers, Marion experiences significant UV exposure, particularly between 11 AM and 2 PM, when the UV Index can soar to a high of 10. Embracing this knowledge not only protects your skin but also enhances your overall outdoor experience in this vibrant community.
At dawn, the UV Index starts at a mild 1 by 07:00, gradually climbing to 2 by 08:00 as the sun rises. The warmth intensifies, reaching 4 at 09:00 and peaking at a significant 10 between noon and 14:00, signaling the need for sun protection. As the afternoon rolls in, the index begins to dip, settling at 8 by 15:00 before tapering off further to 5 at 16:00. By the evening, the UV levels gracefully descend back to 2 at 18:00 and return to a safe 1 by 19:00, marking a day's journey through varying sun exposure. Be mindful of the midday sun, and 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 | 4 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 10 | 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 | 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 experiences significant seasonal variation, peaking in the spring and summer months. From April to September, the UV Index reaches very high levels, particularly in May and June, when it hits an extreme rating of 11. The high-risk months for UV exposure are April through September, with the lowest burn time of just 10 minutes occurring in May and June. As such, it's crucial for visitors and residents to take precautions during these months by wearing protective clothing, applying sunscreen regularly, and seeking shade, especially between 10 AM and 4 PM. In the fall and winter, the UV Index decreases to moderate levels, with safer exposure times returning. However, awareness is still essential year-round to prevent skin damage.
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 |
Marion | 3 | 6 | 7 | 10 | 11 | 11 | 10 | 10 | 9 | 7 | 5 | 3 |
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 |