Last updated: May 3, 2025
In Diamond Harbour, India, staying informed about the UV Index is crucial for protecting your skin from harmful ultraviolet rays. Understanding the UV levels throughout the day helps residents and visitors alike prevent sunburn and maintain overall skin health. With a tropical climate characterized by high UV exposure—especially between 10 AM and 1 PM when the index peaks at an intense 12—being aware of these risks is essential for enjoying outdoor activities safely. By monitoring the UV Index, you can take proactive steps to shield yourself from the sun's damaging effects, ensuring a healthier, happier experience in this beautiful coastal locale.
The UV Index reveals a dramatic peak in sun intensity throughout the day. Early risers will notice moderate levels starting at 07:00 with a UV Index of 3, but things heat up quickly. By 10:00, the Index skyrockets to 11, signaling very high exposure. The sun reaches its zenith at 11:00, where the Index reaches its maximum of 12, urging caution for those outdoors. As the afternoon progresses, the intensity begins to taper off, dropping to 9 by 13:00 and steadily decreasing to 6 at 14:00. By 16:00, it falls to 1, and by dusk, the UV threat diminishes entirely, with readings of 0 from 18:00 onward. For sunseekers and those planning outdoor activities, the morning to early afternoon is when a protective approach is crucial.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 6 | high | 25 min |
| 09:00 | 9 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal changes, with high-risk months typically occurring from March to October. The UV Index peaks during the summer, reaching 13 in July, August, and September, indicating extreme exposure, where the burn time is as little as 10 minutes. Visitors and residents alike should take precautions, especially in the late spring and summer months, by wearing sunscreen, protective clothing, and sunglasses, and seeking shade during peak sun hours. In contrast, January and December demonstrate moderate UV levels with an index of 5, offering more manageable risks, while November and February present high levels at 7. Overall, it is crucial to stay vigilant about UV exposure, particularly during the spring and summer months, to ensure skin health and safety.
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 |
| Diamond Harbour | 5 | 7 | 9 | 10 | 12 | 12 | 13 | 13 | 13 | 11 | 7 | 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 |