Last updated: June 2, 2025
In Riasi, India, staying informed about the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. Understanding UV levels helps you make informed decisions about sun protection, preventing painful sunburns and long-term skin damage. With Riasi's Cwa climate, characterized by warm summers and intense sunlight, the risk of high UV exposure peaks around midday, reaching levels as high as 11. By monitoring the UV Index daily, you can enjoy the outdoors while keeping your skin health a top priority.
The UV Index throughout the day showcases a clear pattern of rising and falling intensity. Starting at a mild 2 at 7:00 AM, the levels climb steadily, peaking at 11 by noon—the most intense period of sunlight. As the afternoon progresses, the index remains high, tapering off to 10 at 1:00 PM, before gradually descending. By 3:00 PM, it drops to 5, and the evening settles in with indices of 3 at 4:00 PM, and a gentle decline to 1 by 7:00 PM. This progression highlights the importance of sun protection during peak hours—particularly between 10 AM and 2 PM—when the UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 3 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit notable seasonal variation, with high-risk months primarily occurring from March to August. During this period, the UV Index peaks, reaching extremities of 12 in May, July, and August, indicating an extreme exposure category with a burn time as short as 10 minutes. Residents and visitors should exercise heightened caution during these months, seeking shade, wearing protective clothing, and applying sunscreen liberally. In contrast, the fall and winter months of November, December, and January present lower UV risks, where the index drops to 5 or less, and burn times extend up to 30 minutes. It remains advisable for everyone to stay aware of daily UV levels, especially as they approach the higher thresholds.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Delhi UVI | 5 | 6 | 9 | 10 | 10 | 10 | 12 | 12 | 9 | 8 | 5 | 5 |
Riasi | 5 | 6 | 10 | 10 | 12 | 11 | 12 | 12 | 10 | 8 | 5 | 4 |
Mumbai UVI | 8 | 9 | 10 | 11 | 11 | 12 | 13 | 13 | 11 | 10 | 7 | 7 |
Ahmedabad UVI | 7 | 8 | 10 | 12 | 11 | 12 | 13 | 13 | 11 | 10 | 7 | 6 |
Hyderabad UVI | 10 | 11 | 12 | 11 | 13 | 13 | 15 | 14 | 13 | 11 | 8 | 8 |
Bengaluru UVI | 11 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 14 | 12 | 11 | 10 |