Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Mattawan, United States, especially as summer months bring increased sun exposure. Knowing the daily UV levels empowers you to effectively prevent sunburn and protect your skin health, significantly reducing the risk of long-term damage. In this region, characterized by a Dfa climate, sunny days can lead to elevated UV risks, particularly around midday when the UV Index peaks at levels 8 to 9. Staying informed about these levels is key to enjoying outdoor activities responsibly and safely!
As the sun rises, the UV Index starts at a maximum of 1 at 7:00 AM, indicating safe sun exposure. By 9:00 AM, it climbs to 2, suggesting that while it’s still mild, some caution is advisable. The index spikes significantly from 10:00 AM, reaching 4, and continues to rise throughout the day. At 12:00 PM, it peaks at an impressive 8, followed closely by a high of 9 at both 1:00 PM and 2:00 PM—perfect times to seek shade or lather on sunscreen! As the afternoon wanes, the UV Index gradually declines to 6 at 4:00 PM, then eases to 3 by 6:00 PM, finally dipping back down to 1 by the evening. Enjoy the sun, but remember to protect your skin during those midday highs!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 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 | 9 | 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 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal changes, with the highest levels occurring during the summer months. From March to August, the UV Index reaches high to very high categories, peaking at 10 in June and July, when the burn time is as little as 15 minutes. The high-risk months for sun exposure are April through August, where individuals should take precautionary measures. Residents and visitors are advised to use sunscreen, wear protective clothing, and seek shade to minimize the risk of skin damage during these months. As the year progresses into fall and winter, the UV Index decreases, reaching a low of 2 in December, where a burn time of 45 minutes is typical; however, caution should still be exercised when outdoors.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mattawan | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 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 |