Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Shahreza, Iran, where exposure to harmful ultraviolet rays can significantly impact skin health and lead to sunburn. With a BSk climate, Shahreza experiences high UV levels, particularly during midday when the index can peak at a staggering 13. Awareness of these levels not only aids in effective sunburn prevention but also promotes long-term skin health, making it essential for both locals and visitors to stay informed. By keeping an eye on the UV Index, you can enjoy the beautiful sunny days while protecting yourself against overexposure.
The UV Index throughout the day presents a fascinating picture of sun intensity. Starting at a mild 1 at 07:00, the index gradually climbs, reaching 3 by 08:00. As the morning progresses, it peaks at an impressive 13 at 12:00 and 13:00, signaling a critical time for sun protection. The intensity begins to decline in the afternoon, dropping to 8 by 15:00. By 18:00, it retreats back to 1, demonstrating the inevitable waning of sunlight as the day draws to a close. This data underscores the importance of being sun-smart, particularly between 10:00 and 15:00, when UV exposure is at its highest.
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 | 13 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 8 | very high | 15 min |
16:00 | 5 | moderate | 30 min |
17:00 | 3 | moderate | 30 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit notable seasonal changes, peaking in the spring and summer months. February marks the start of high-risk UV exposure with an index of 8, categorized as very high, and continues to climb, reaching an extreme rating of 11 in both March and April. May, June, and July are the high-risk months, where the UV Index hits 14 and remains between 12-13 until September. Residents and visitors should exercise caution during these months, especially when the burn time is just 10 minutes under such extreme conditions. As fall approaches, the UV Index gradually decreases, dropping to 9 in October, then further to 6 and 5 by November and December, respectively. It’s vital for everyone to protect their skin during high UV times by wearing sunscreen, hats, and sunglasses, and seeking shade when necessary.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Karaj UVI | 4 | 5 | 8 | 9 | 12 | 12 | 11 | 10 | 10 | 7 | 4 | 3 |
Mashhad UVI | 4 | 5 | 8 | 10 | 12 | 12 | 12 | 11 | 10 | 7 | 4 | 3 |
Tehran UVI | 4 | 6 | 8 | 9 | 13 | 12 | 11 | 10 | 10 | 7 | 5 | 3 |
Tabriz UVI | 4 | 5 | 9 | 10 | 12 | 12 | 12 | 11 | 9 | 7 | 4 | 3 |
Isfahan UVI | 5 | 7 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 6 | 4 |
Shahreza | 6 | 8 | 11 | 11 | 14 | 13 | 13 | 12 | 11 | 9 | 6 | 5 |