Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Morelos, Mexico, where the sun shines brightly year-round. With a warm Csa climate, we experience elevated UV levels that can lead to serious skin health issues like sunburn and increased risk of skin cancer. As you navigate daily life in this beautiful region, being aware of the UV Index—from a moderate 4 in the morning to a peak of 13 around noon—can help you take the necessary precautions, ensuring you enjoy the sun safely and protect your skin health effectively. Remember, staying informed about sun exposure is key to enjoying Morelos while keeping your skin healthy!
The UV Index for today presents a dynamic picture of sun intensity throughout the hours. Starting off gently, it peaks at 1 at 07:00, gradually climbing to a moderate 2 by 08:00. The sun makes its presence felt, reaching 4 at 09:00 and 6 by 10:00. *As noon approaches, the UV Index escalates to a striking 12, hitting its zenith at *1 PM with a scorching 13. As the day progresses, there's a slight decline, dropping to 12 at 2 PM, followed by a decrease to 10 by 3 PM. The intensity subsides further to 7 at 4 PM, gently tapering off to 4 at 5 PM, before descending back to 2 at 6 PM, and finally slipping to 1 as the sun sets at 7 PM. It's a day to embrace the sun while practicing sun safety during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes reveal significant variations in ultraviolet exposure, particularly peaking during the warmer months. The high-risk months, characterized by an extreme UV Index of 11-14, are from March to October, where burn time dramatically decreases to just 10 minutes of unprotected skin exposure. In contrast, January sees a high index of 7 but with a safer burn time of 25 minutes, while December drops to a UV Index of 6. It's crucial for both visitors and residents to exercise vigilance during the peak months, employing protective measures such as sunscreen, hats, and long sleeves to mitigate the risk of overexposure, especially between mid-March and early November when UV levels are at their highest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Morelos | 7 | 10 | 11 | 14 | 14 | 13 | 13 | 13 | 12 | 11 | 8 | 6 |
| Guadalajara UVI | 9 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 8 |
| Iztapalapa UVI | 10 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 8 |
| Ecatepec de Morelos UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
| Mexico City UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |