Last updated: July 2, 2025
In Mumbai, India, understanding the UV Index is crucial for safeguarding your skin health amid the city’s tropical climate. With UV levels peaking at a staggering 13 around noon, awareness of these ultraviolet radiation levels can play a pivotal role in preventing sunburns and reducing long-term skin damage. As residents and visitors enjoy the vibrant streets and sun-kissed beaches, recognizing the risks associated with high UV exposure—especially during peak hours—becomes essential for a safe and enjoyable experience outdoors. Stay informed, stay protected!
The UV Index throughout the day reveals striking fluctuations, peaking at a blistering 13 at noon. Starting under gentle conditions at 07:00 with a maximum of 1, the UV intensity gradually climbs, hitting 3 by 08:00. As the sun ascends, it reaches 6 at 09:00 and skyrockets to 11 by 11:00, warning sun seekers to take precautions. The pinnacle occurs at 12:00, where a relentless 13 signals the need for protective measures. The index then begins a steady decline, dipping to 12 by 13:00, before descending further to 10 at 14:00, and tapering off to 4 by 16:00. As twilight approaches, the UV levels fall swiftly, reaching a safe 0 by 19:00, reminding us of the sun's fleeting power and the importance of sun safety during those peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with the highest risk occurring from March to September. During these months, especially from April through August, the UV Index reaches extreme levels, peaking at 13 in July and August, where the burn time is only 10 minutes. Notably, April and May also maintain high indices at 11. Conversely, the UV levels decrease as fall approaches, with October showing a 10 and November and December at 7, allowing for longer burn times of 25 minutes. Visitors and residents are strongly advised to take precautions, especially during the high-risk months of April to September, by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak hours to reduce the risk of 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 |
| Mumbai | 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 |