Last updated: July 2, 2025
Understanding the UV Index in Arroyo Jerusalen, Mexico, is crucial for protecting your skin and maintaining overall health. The UV Index serves as a critical indicator of sunlight strength, guiding residents and visitors alike in preventing sunburn and reducing the risk of long-term skin damage. Arroyo Jerusalen, with its Aw climate characterized by warm temperatures and abundant sunshine, experiences significant UV exposure, especially during midday hours when levels peak at 13. Being aware of the UV Index helps you make informed decisions about sun safety, ensuring you enjoy the beautiful outdoors while safeguarding your skin.
The UV Index displays a fascinating hourly progression throughout the day, starting off gently. At 07:00 and 08:00, the index is low, peaking at 1, ideal for morning activities without much sun protection needed. However, as the day unfolds, things heat up—by 09:00 it escalates to 3, and by 10:00, it reaches 6, signaling the sun's increasing strength. The intensity peaks sharply around 12:00, hitting a maximum of 12, before climbing even higher to 13 at 13:00. This is when sun exposure should be minimized, with protective measures highly recommended. As the afternoon progresses, the index gradually declines, dropping to 10 at 15:00 and further to 3 by 17:00 as daylight begins to fade. The day wraps up with a soft descent back to 1 by 18:00 and 19:00, marking a safe end to outdoor activities. Stay informed and enjoy the sunshine responsibly!
| 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 | 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 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal changes in UV exposure are notable throughout the year, with peak risk occurring from February to October, particularly in March and April, when the UV Index reaches an extreme level of 14. During these high-risk months, the recommended burn time is as little as 10 minutes, signaling the urgency for both residents and visitors to take protective measures. In contrast, November and December see a decrease in the UV Index, moving to a very high category with a burn time of 15 minutes. To minimize the risk of sunburn and long-term skin damage, it is crucial for everyone to wear sunscreen, seek shade, and don protective clothing, especially during the sun's peak hours in these high UV months.
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 |
| Arroyo Jerusalen | 9 | 12 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 10 | 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 |