Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Santo Tomas Tamazulapam, Mexico, where the climate often presents heightened sun exposure risks. With its Cwb climate characterized by temperate conditions, the UV levels can significantly spike, especially during midday hours, reaching an impressive peak of 15 between 1 PM and 2 PM. Being aware of the UV Index is essential for sunburn prevention and overall skin health, allowing individuals to take proactive measures to protect themselves from harmful rays. Whether you're enjoying outdoor activities or simply soaking up the sun, knowing the UV levels can help ensure a safe and enjoyable experience under the vibrant Mexican sky.
The UV Index data paints a vibrant picture of sunlight intensity throughout the day. Beginning with a mild UVI of 1 at 7:00 AM, the day starts gently, gradually climbing to 3 by 9:00 AM. However, as the sun reaches its zenith, the UVI skyrockets, peaking at an intense 15 between 1:00 PM and 2:00 PM. During these hours, it's crucial to take protective measures against harmful UV rays. As the sun begins to set, the index dips, dropping to 5 by 5:00 PM and returning to a safer 1 by 7:00 PM. This fluctuation highlights the importance of staying sun-smart during peak hours, especially between 11:00 AM and 2:00 PM when the UVI is at its highest.
| 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 | 13 | 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 in the region demonstrates extreme levels from January through September, peaking at 15 in March, April, May, June, July, and September, with only slight decreases to 14 in August and 13 in October. Notably, the high-risk months for sun exposure are predominantly from January to September, where the burn time remains at a critical 10 minutes across these months. Visitors and residents are strongly advised to take precautions by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours to minimize the risk of UV-related health issues. In November, the UV index decreases to 11 and falls to 10 in December, indicating a slight reprieve, but continued vigilance is recommended as the exposure level remains significant.
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 Tamazulapam | 11 | 13 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 13 | 11 | 10 |