Last updated: June 2, 2025
In 31 de Octubre, Mexico, being aware of the UV Index is essential for protecting your skin and overall health. With typical UV levels peaking around midday, understanding these fluctuations can help prevent painful sunburns and reduce the risk of long-term skin damage. This region enjoys a semi-arid climate, known for its sunny days, bringing about significant UV exposure, especially during peak hours when the index reaches a high of 12 around noon. Stay informed and take proactive steps to safeguard your skin while enjoying the beautiful weather in this vibrant locale!
At dawn, the UV Index starts low at 1 around 07:00, making it a gentle introduction to the day. As the sun rises higher, the intensity increases rapidly, peaking at 12 by 12:00—perfect for sunbathers and outdoor enthusiasts seeking that golden glow. The midday sun commands attention, with values reaching 11 at 11:00 and 13:00, encouraging sun safety precautions. As the afternoon rolls in, the UV Index begins to wane, dropping to 9 at 14:00 and further to 4 by 16:00. By evening, the UV exposure diminishes significantly, settling back to 1 by 19:00, ushering in a gentle dusk. It’s essential to stay informed and safeguard against the sun’s rays, especially during those peak midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal changes, highlighting the importance of sun safety for both visitors and residents. From January to May, the UV levels start at a high index of 6 and escalate to an extreme 12 by April and May, indicating a critical burn time of just 10 minutes during these months. The pattern continues into the summer, with June to September maintaining the extreme UV Index of 12, presenting high risk for sunburn. As fall approaches, the UV Index gradually tapers off, dropping to 9 in October and then to 7 in November, before reaching a moderate 5 in December, where the burn time increases to 30 minutes. Thus, the highest risk months for UV exposure are April through September, where precautions should be taken seriously. Residents and visitors are strongly advised to wear protective clothing, apply sunscreen regularly, and limit sun exposure during peak hours, particularly in late spring and summer.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 de Octubre | 6 | 8 | 10 | 12 | 12 | 12 | 11 | 12 | 12 | 9 | 7 | 5 |
| 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 |