Last updated: August 1, 2025
In Siwan, India, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels can empower residents to protect themselves from the sun's harmful effects, especially during the peak hours of exposure. Siwan’s Cwa climate means long, sunny days, with UV Index readings soaring to 12 during midday, highlighting significant risks if proper precautions aren't taken. By staying informed about the UV Index, you can enjoy the outdoors safely and effectively safeguard your skin from damage.
The UV Index today starts off relatively mild, peaking at an early morning maximum of 3 at 07:00. As the sun rises higher in the sky, UV rays intensify, reaching a notable 10 by 10:00 AM and soaring to a peak of 12 from 11:00 AM to 12:00 PM—the perfect reminder to protect your skin! After the midday high, the index gradually decreases, dipping to a cozy 4 by 3:00 PM and further to 1 by 5:00 PM. As the day winds down, the UV Index drops to 0 by 7:00 PM, signaling it's safe to relax outdoors without worry. Remember to prioritize sun safety during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 5 | moderate | 30 min |
09:00 | 8 | very high | 15 min |
10:00 | 10 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 9 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 4 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
As the seasons change, so do UV index levels, significantly impacting burn times and exposure risks. January and December see a moderate UV Index of 5, with a burn time of 30 minutes. By February, the index climbs to 6, categorized as high, reducing safe exposure to 25 minutes. The spring months quickly escalate, with March and April reaching a very high index of 8 and 10, respectively, with critical burn times decreasing to just 15 minutes. The peak summer months of July, August, and September are particularly dangerous, featuring an extreme UV index of 12 and 11, with an alarming burn time of only 10 minutes. As autumn approaches in October, the index remains high at 9, then falls again in November. To protect yourself, especially during the high-risk months from March to September, use sunscreen, wear protective clothing, and stay in the shade during peak hours.
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 |
Siwan | 5 | 6 | 8 | 10 | 10 | 10 | 12 | 11 | 11 | 9 | 6 | 5 |
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 |