Last updated: May 3, 2025
Understanding the UV Index in Santo Tomas de Arriba, Mexico is crucial for safeguarding your skin and overall health. With its BSh climate, this region experiences significant sun exposure, particularly between late morning and early afternoon when UV levels peak. Awareness of these levels is essential for sunburn prevention and long-term skin health, helping residents and visitors alike enjoy the sunny days without the harmful effects of too much UV radiation. With readings soaring to a maximum of 15 around noon, staying informed about the UV Index can make all the difference in enjoying time outdoors safely.
The UV Index for today presents a clear peak in intensity around midday. Starting at a mild 1 at 07:00 and 08:00, the index gradually climbs, reaching 3 by 09:00. The sun's rays intensify significantly, hitting 6 by 10:00 and soaring to an intense 13 at noon. The max UV exposure is observed between 13:00 and 14:00, where it peaks at 15—an ideal time to seek shade or apply sunscreen! As the afternoon rolls in, the index begins to wane, dropping to 12 at 15:00, and then easing down to 2 by 18:00, before returning to its starting point of 1 by 19:00. Stay safe and protect your skin 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 | 6 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 12 | 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 |
Throughout the year, UV Index levels exhibit significant fluctuations, with the highest risk occurring from February to November, where the index remains consistently high or extreme, particularly in March, April, May, July, and August, reaching peaks of 14 to 15. During these months, the burn time is notably short, at just 10 minutes, emphasizing the necessity for proactive sun protection. Conversely, January and December show slightly lower indices of 10 and 9, respectively, classifying them as very high risk months with a 15-minute burn time. To ensure safety, residents and visitors should diligently apply sunscreen, wear protective clothing, and limit sun exposure during peak hours, especially from late winter through early fall.
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 |
| Santo Tomas de Arriba | 10 | 13 | 14 | 15 | 15 | 14 | 15 | 14 | 14 | 13 | 11 | 9 |