Last updated: June 2, 2025
In San Rafael Tecario, Mexico, understanding the UV Index is crucial for safeguarding your skin against harmful UV radiation. With peak UV levels often reaching a staggering 14 during midday, being aware of these fluctuations helps residents and visitors alike take preventive measures against sunburn and long-term skin damage. The area's warm Aw climate contributes to heightened UV exposure, especially from late morning to early afternoon when the sun's intensity is at its highest. By monitoring the UV Index, you can enjoy the beautiful outdoors while effectively protecting your skin health.
The UV Index for the day showcases a significant escalation in sun intensity, peaking at 14 between 1 PM and 2 PM. Starting from a safe 0 at 7 AM, it gradually rises to a moderate 1 by 8 AM and hits 2 at 9 AM. As the sun climbs higher, the index jumps to 5 by 10 AM and surges to a robust 12 by noon. The intensity remains strong, holding steady at 14 from 1 PM to 2 PM, before tapering off to 12 at 3 PM and declining further to 6 by 5 PM. As the day winds down, the UV Index drops back to 1 by 7 PM, reminding us to seek shade and protect our skin when the sun's rays are at their strongest.
| 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 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index displays significant seasonal changes, peaking during the warmer months. From January to April, the UV Index begins at 9 (very high) and escalates to 14 (extreme) by March. The summer months of May through September consistently maintain a high UV Index of 14, indicating extreme exposure risk, before slightly declining in October to 11 and then to 9 in November and 8 in December (both very high). The high-risk months for UV exposure are February through September, with burn times as short as 10 minutes, underscoring the importance of protective measures during this period. Visitors and residents are advised to take proactive steps against UV exposure, including wearing sunscreen, protective clothing, and eyewear, especially during peak hours between 10 AM and 4 PM.
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 Rafael Tecario | 9 | 11 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 11 | 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 |