Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Tehri, India, where the combination of elevated altitudes and a Cwa climate can lead to significant sun exposure. The UV Index provides valuable information on daily UV radiation levels, helping individuals take necessary precautions to prevent sunburn and protect their skin health. With UV levels peaking at a maximum of 11 around noon, it’s essential to be aware of when and how to shield yourself from harmful rays. By staying informed about the UV Index in Tehri, you can enjoy the sunny climate while prioritizing your well-being.
Throughout the day, the UV Index fluctuates significantly, peaking during midday hours. Starting at a mild 2 at 7:00 AM, the intensity rises swiftly, reaching 4 by 8:00 AM. As the sun climbs higher, it hits 7 by 9:00 AM and then surges to a striking 9 at 10:00 AM. The highest levels are recorded between 11:00 AM and 12:00 PM, where it escalates to a maximum of 11, indicating a high risk of harm from unprotected sun exposure. As the afternoon progresses, the UV Index begins to decline, dropping to 10 at 1:00 PM, then to 7 by 2:00 PM, before falling further to 4 at 3:00 PM. By late afternoon, it reaches 2 at 4:00 PM and continues to decrease, dwindling to 1 by 5:00 PM, resulting in a more manageable 0 by 7:00 PM. This pattern underscores the importance of sun protection during the peak hours of 11:00 AM to 1:00 PM.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | 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 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal changes, with peak values occurring during the summer months. April through August are identified as high-risk months, exhibiting extreme UV levels of 11 to 13, with remarkably short burn times of just 10 minutes. March also poses a risk with a very high UV index of 10. As visitors and residents navigate these months, it is crucial to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. Conversely, from November to February, the UV levels decrease to moderate and high categories, allowing for safer outdoor activities with longer burn times of 25 to 30 minutes. However, caution is still advised, particularly on sunny days. Overall, awareness of UV index fluctuations and appropriate precautions are essential for skin safety year-round.
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 |
| Tehri | 5 | 7 | 10 | 11 | 11 | 11 | 13 | 13 | 10 | 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 |