Last updated: July 2, 2025
Understanding the UV Index in Marakkanam, India, is essential for safeguarding your skin against harmful ultraviolet radiation. As a coastal town in the Aw climate zone, Marakkanam experiences significant UV exposure, especially during the midday hours when the index peaks at levels that can cause sunburn and long-term skin damage. By staying informed about the UV levels—from a moderate 4 in the morning to severe 13 at noon—residents and visitors can take proactive measures to protect their skin health and enjoy the beautiful sunny days this region offers safely.
The UV Index for the day reveals a clear peak in intensity between 10:00 AM and 1:00 PM, where values soar to a striking 13. Early risers will notice a modest 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. As the sun climbs higher, 9:00 AM sees a significant jump to 8, followed by an aggressive leap to 11 at 10:00 AM. The zenith is reached at 11:00 AM and 12:00 PM, both recording a 13, prompting caution for those outdoors. After this peak, the intensity starts to wane, dropping to 12 by 1:00 PM and continuing its descent to 5 by 3:00 PM. By 4:00 PM, the index falls to 2, indicating a much safer level for outdoor activities, and by evening, a 0 signifies that UV exposure is no longer a concern from 6:00 PM onward. Make sure to plan your day wisely around these UV fluctuations!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | 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 |
The UV Index experiences significant seasonal changes, peaking from March to October, when it consistently reaches extreme levels. The highest UV Index of 15 occurs in April, while February and March also present critical risks with values of 12 and 13 respectively. Visitors and residents should be particularly cautious during these high-risk months, where the recommended burn time is as low as 10 minutes. To protect against harmful UV exposure, it is advisable to wear sunscreen, protective clothing, and sunglasses, especially during midday hours when the sun's rays are strongest. In contrast, January, November, and December see a slight decrease in UV levels, with indices categorized as very high, and a burn time of 15 minutes still necessitating protective measures. Overall, maintaining awareness of UV fluctuations is crucial for enjoying outdoor activities safely throughout the year.
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 |
| 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 |
| Marakkanam | 10 | 12 | 13 | 15 | 12 | 12 | 13 | 13 | 13 | 11 | 10 | 9 |
| Bengaluru UVI | 11 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 14 | 12 | 11 | 10 |