Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in San Agustin Chayuco, Mexico, where the Aw climate brings both sunshine and significant UV exposure risks. The UV levels can reach a maximum of 14 during midday, highlighting the importance of awareness for preventing sunburn and protecting skin health. By staying informed about the UV Index, you can take proactive measures to enjoy the beautiful outdoors while safeguarding yourself against harmful rays. Always keep an eye on the UV levels, especially during peak hours between 11 AM and 2 PM, ensuring that your time in the sun remains safe and enjoyable.
The UV Index shows a remarkable progression throughout the day, with the most intense exposure occurring around noon. Starting from a mild 1 at 07:00 and 08:00, the index gradually climbs, reaching 9 by 11:00. The peak is reached at a striking 14 between 13:00 and 14:00, indicating a critical time for sun safety precautions. As the afternoon moves on, the index begins to decline, dropping to 5 by 17:00 and returning to a safer 1 by 19:00. To enjoy the sun responsibly, ensure protective measures are in place during those peak hours of 10:00 to 15:00!
| 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 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | 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 variations, with the highest levels occurring from February through September. During these months, particularly from March to June, the index reaches an extreme level of 14. This indicates a high risk for sunburn, with a minimal exposure burn time of just 10 minutes. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing protective clothing, applying high-SPF sunscreen, and seeking shade during peak sun hours. As the year progresses into October and returns to November and December, the UV Index decreases to 12 and 10, respectively, still presenting a very high risk, but with slightly longer burn times of 10 to 15 minutes. Awareness and protection remain crucial, even in the cooler 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 |
| San Agustin Chayuco | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 12 | 10 | 9 |
| 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 |