Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents and visitors in Jose Maria Morelos (San Jose), Mexico, where the sun shines brightly in a Cwb climate zone. Understanding UV levels is essential for preventing sunburn and protecting skin health, particularly during the peak hours when the UV Index soars to 15 around midday. With typical exposure risks heightened due to the region's sunny weather, knowing how to adapt your outdoor activities can help you enjoy the beautiful surroundings while safeguarding your skin. Stay informed and take action against harmful UV radiation to ensure a safe and enjoyable time in this vibrant locale!
The UV Index journey throughout the day reveals a striking crescendo of solar intensity. Starting softly at a mere 1 at 07:00, the index gradually rises, hitting 3 by 09:00. As the sun climbs higher, UV levels peak dramatically at 15 from 13:00 to 14:00, marking the day's most intense exposure. This midday surge emphasizes the importance of sun protection, as values hover at 13 and 10 during the afternoon before tapering off in the evening, settling back to 1 by 19:00. The data serves as a compelling reminder to stay vigilant under the sun's powerful rays, especially during those peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 10 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal fluctuations, with high-risk months typically from February to October. During this period, the UV Index peaks at 15, categorized as extreme, particularly from April to July, necessitating vigilant sun safety measures. In these months, the burn time is only 10 minutes, indicating a critical need for protective measures such as sunscreen, hats, and UV-blocking sunglasses. Conversely, November and December see a decrease in UV exposure, categorized as very high, with a lengthened burn time of 15 minutes in those months. Therefore, both visitors and residents are strongly advised to monitor UV levels regularly and take necessary precautions, especially during the warmer, sunnier months to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Jose Maria Morelos (San Jose) | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |