Last updated: June 2, 2025
Understanding the UV Index in Patna, India is crucial for residents and visitors alike, as it serves as a vital indicator of the sun's potential harm to our skin. With high UV levels, particularly during the summer months, being aware of these levels can help us take proactive measures to prevent sunburn and maintain long-term skin health. Patna's Cwa climate means it experiences significant solar exposure, peaking at a UV Index of 10 around noon, which poses increased risks for both short-term and long-term skin damage. By staying informed about the UV Index, you can protect yourself and enjoy the beautiful Patna sunshine safely.
The UV Index reflects a constant dance of intensity throughout the day, peaking dramatically at 11:00 AM with a value of 10, indicating a high risk of harm from unprotected sun exposure. Early morning hours start gently, with a mild 2 at 07:00, but by 08:00, it escalates to a noticeable 5. As the clock ticks towards noon, the intensity builds, reaching 9 by 10:00 AM and maintaining this level for another hour before dipping slightly to 9 at 12:00 PM. The afternoon brings a gentle decline; by 13:00, it falls to 7, signaling a more manageable UV presence. The index further decreases as the day wanes, dropping to 5 by 14:00, and eventually fading to 0 by 19:00 PM, where the sun’s influence recedes completely. This data serves as a crucial reminder to protect your skin, particularly during those peak hours when UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal variations, with high-risk months generally occurring from March to October. During this period, especially in July, August, and September, the UV Index reaches an extreme level of 12, indicating a burn time of just 10 minutes. Notably, April and June also showcase a very high index of 10, necessitating diligent sun protection. In contrast, winter months like January and December see a moderate UV Index of 5, allowing for longer exposure times of 30 minutes. Visitors and residents alike are advised to practice sun safety during high-index months—such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak hours—to minimize the risk of UV-related skin damage.
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 |
| Patna | 5 | 6 | 8 | 10 | 9 | 10 | 12 | 12 | 12 | 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 |