Last updated: July 2, 2025
In Arroyo Largo, Mexico, understanding the UV Index is essential for protecting your skin and maintaining overall health. During peak sun hours, especially around noon when the UV Index reaches a staggering 12, the risk of sunburn significantly increases, making it crucial to take preventive measures against harmful UV radiation. Given Arroyo Largo's tropical climate, residents and visitors alike face unique UV exposure challenges, emphasizing the importance of staying informed about daily UV levels to safeguard against skin damage and long-term health issues. By paying attention to this vital index, you can enjoy the sunny beauty of Arroyo Largo while keeping your skin safe and healthy.
As the sun rises, the UV Index begins its gentle ascent, peaking at 1 during the early hours at 07:00 and 08:00. By 09:00, it ramps up to a moderate 3, but as the clock strikes 10:00, the intensity surges to a more notable 5. The sun reaches its zenith around 12:00, where the index hits a staggering 12, hinting at the need for extra caution. The UV Index reaches its apex at 13:00 with a robust 14, before gradually tapering off to 8 by 16:00. As the day winds down, it descends to 4 at 17:00, eventually retreating to a safer 1 by 19:00. Ensure to protect your skin during those peak hours when the UV levels soar!
| 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 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. From January to March, the UV Index rises progressively from 9 to 12, marking the start of higher sun exposure risks with burn times decreasing to 10 minutes by late winter. The months of April to September present the highest danger, with the UV Index reaching its max of 14 in July. The exposure category remains at extreme throughout this period, indicating a burn time of just 10 minutes. As we move into fall, the UV Index drops slightly but stays within the extreme category until October, before retreating to very high levels in November and December. Residents and visitors should exercise caution and take protective measures during high-risk months, particularly from March to October, when the potential for skin damage is considerably elevated. Always apply sunscreen, wear protective clothing, and seek shade during peak hours to minimize risks.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arroyo Largo | 9 | 11 | 12 | 13 | 13 | 13 | 14 | 12 | 13 | 11 | 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 |