Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Nuevo Zirosto, Mexico, where the combination of its Cwb climate and high sun exposure creates unique challenges for skin health. With the UV Index often peaking at a staggering 14 during midday hours, awareness of these levels is essential for preventing sunburn and protecting against long-term skin damage. As the sun climbs high in the sky, knowing when to seek shade or apply sunscreen can make all the difference—ensuring that your time outdoors is both enjoyable and safe, while embracing the vibrant sun-drenched beauty of Nuevo Zirosto.
The UV Index for the day showcases a dynamic rise and fall in sun intensity, starting from a calm morning. At 7:00 AM, the index begins at a maximum of 0, indicating minimal UV exposure. By 8:00 AM, it ticks upward to 1, signaling a cautious start for early risers. As the day progresses, the Index climbs steadily, hitting 2 at 9:00 AM and reaching 4 by 10:00 AM. The sun is now making its presence felt, peaking sharply at 12:00 PM with a formidable 11. The highest point is recorded at 2:00 PM, where the UV Index soars to 14, emphasizing the need for sun protection. Following this intensity, it begins to dip with 12 at 3:00 PM, 9 at 4:00 PM, and gradually tapering down to 1 by 7:00 PM. This data underscores the importance of sunscreen and shade during peak hours, especially between 11:00 AM and 2:00 PM. Be vigilant and enjoy the sunny moments safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, reaching its peak during the spring and summer months from February to September, where it consistently registers between 11 to 14, classifying as extreme and necessitating a burn time of just 10 minutes. January and November see a decline to a UV Index of 9, indicating a very high exposure risk with a burn time of 15 minutes, while December and October slightly lower to UV Index 8 and 11 respectively. Residents and visitors are strongly advised to take precautions during the high-risk months of February through September, including wearing sunscreen, protective clothing, and limiting sun exposure, especially during peak hours, to prevent 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 |
| Nuevo Zirosto | 9 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 11 | 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 |