Last updated: June 2, 2025
In Honolulu, United States, staying informed about the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels can empower you to prevent sunburn and maintain long-term skin health, especially in a region known for its warm, tropical climate and abundant sunshine. During the day, UV readings can soar to dangerous levels—peaking at 13 between noon and 1 PM—which means being UV-aware is essential for residents and visitors alike. With this knowledge, you can enjoy all that Honolulu has to offer, from its stunning beaches to outdoor adventures, while minimizing your risk of UV-related skin damage.
As the sun rises, the UV Index begins to climb steadily. Starting at a mild 1 at 7:00 AM, the intensity increases to a moderate 3 by 8:00 AM. However, it's not until 10:00 AM that the UV Index hits 8, signaling the need for sun protection. The peak occurs at 12:00 PM with a soaring 13, making it crucial to take precautions if you're outdoors. As the afternoon progresses, the index gradually declines, dropping to 10 at 2:00 PM and sliding to 7 by 3:00 PM. By evening, the UV levels decrease significantly, settling back to 1 by 7:00 PM. Stay safe and safeguard your skin during peak sun hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 7 | high | 25 min |
16:00 | 4 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
The UV Index demonstrates significant seasonal variation, with the highest levels occurring from March to October, peaking at 13 during the summer months of June to August. This period is categorized as extreme, with a burn time as short as 10 minutes for unprotected skin, indicating a high risk for sunburn. Notably, January and February also present very high exposure levels, with indices of 8 and 10, respectively, but longer burn times of 15 minutes. As such, both visitors and residents should take proactive measures to protect themselves during these months, especially between March and September when the UV Index is at its most dangerous. Recommendations include wearing broad-spectrum sunscreen, protective clothing, and seeking shade, particularly during peak sunlight hours.
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 |
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 |
Honolulu | 8 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 11 | 8 | 8 |