Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of San Juan de la Vaqueria, Mexico, where the climate falls into the BSh zone—characterized by hot, dry conditions with plenty of sunshine. By monitoring UV levels, you can effectively protect yourself from harmful sun exposure, preventing painful sunburns and safeguarding your skin health. With peak UV Index values soaring to 14 around noon, it's essential to stay informed about UV risks in order to enjoy the sun responsibly and maintain your well-being in this vibrant locale.
The UV Index throughout the day tells a compelling story of rising sun intensity. Starting off at a mellow 1 at 07:00 AM, it gradually increases to a moderate 2 by 09:00 AM. As the clock strikes 10:00 AM, the index soars to 5, marking the onset of stronger rays. With the sun at its peak, the index reaches an impressive 11 at 12:00 PM and 14 at 1:00 PM, signaling the highest risk for unprotected skin. Although it remains high at 14 from 1:00 PM to 2:00 PM, it soon begins to dip, falling to 9 by 4:00 PM and further down to 3 at 6:00 PM. As daylight dims, the UV Index retreats to a safe 1 by 7:00 PM, reminding us of the sun's powerful influence during the midday hours. Be sure to protect your skin when the index is at its highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | 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 exposure significantly fluctuates, with the highest risk months being March through October. During this period, the UV Index ranges from 12 to 14, categorizing it as extreme. This means that burn time can be as short as 10 minutes, emphasizing the need for diligent sun protection. In contrast, January and February also present a very high risk (UV Index 8-10) with a burn time of 15 minutes, while November sees a slight decrease to a UV Index of 9. As the year progresses into winter, December’s UV Index drops to 7, posing a high risk with a longer burn time of 25 minutes. Visitors and residents are advised to take protective measures such as wearing sunscreen, hats, and protective clothing, especially during the spring and summer months when UV intensity peaks.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan de la Vaqueria | 8 | 10 | 12 | 14 | 14 | 13 | 14 | 14 | 13 | 11 | 9 | 7 |
| 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 |