Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of San Antonio Metzonapa, Mexico, where the climate can expose you to elevated levels of ultraviolet radiation. With UV levels reaching a peak of 14 around midday, awareness of these values is essential for preventing sunburn and protecting overall skin health. As you enjoy the typically mild Cfb climate, remember that even on seemingly mild days, the sun can pose risks. Equip yourself with this knowledge to ensure safe, enjoyable outdoor activities while safeguarding your skin from harmful effects.
As the sun rises, the UV Index begins its climb from a gentle 1 at 07:00, nudging upwards to 2 by 09:00. By mid-morning, the intensity escalates to 5 at 10:00, signaling the need for some sun safety. The peak arrives at noon with a sizzling 12, reaching a blistering 14 by 13:00 and 14:00, marking the hours of most intense sun exposure. As afternoon fades, the UV Index gradually recedes to 12 at 15:00, before cooling further to 5 by 17:00, and finally winding down to 1 by 19:00. During the peak hours, make sure to stay protected and enjoy the sunshine responsibly!
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 | 5 | moderate | 30 min |
11:00 | 8 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 13 | 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 |
Throughout the year, UV index levels vary significantly, with the highest risk months occurring from February to October. During this period, the UV index reaches extreme levels, peaking at 14 in May, June, and July, where the burn time is as short as 10 minutes. Notably, March and April also present extreme conditions, making it crucial for visitors and residents to take precautions. The months of November and December show a slight reduction with a UV index of 9 and 8 respectively, falling into the very high exposure category, suggesting that UV protection remains important even in winter. To stay safe, everyone is advised to wear sunscreen, protective clothing, and sunglasses, and to limit sun exposure during peak hours, particularly in the spring and summer months.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
San Antonio Metzonapa | 8 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 9 | 8 |
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 |