Last updated: June 2, 2025
Understanding the UV Index is crucial for ensuring your safety and well-being in Mazatlán, Mexico, a stunning coastal city known for its sunny beaches and vibrant culture. With the UV levels often peaking at dangerous levels—reaching as high as 12 during midday—being aware of these fluctuations can significantly aid in sunburn prevention and maintaining skin health. Mazatlán's tropical climate means that sun exposure risks are ever-present, making it essential for locals and visitors alike to keep a close eye on the UV Index. Arm yourself with this knowledge to enjoy the sun safely while exploring all that this beautiful destination has to offer!
The UV Index dances through the day, peaking dramatically as the sun reaches its zenith. Starting the morning at a mild level of 1 at 07:00, the index slowly escalates to 2 by 08:00. As the clock strikes 09:00, it nudges up to 3, but the real surge begins at 10:00 with a jump to 6. The sun's fierce glow becomes undeniable by 11:00, reaching 9, and then it hits its apex at 12:00, soaring to 11—a clear signal to seek shade! By 13:00, it peaks at a sizzling 12 before gradually declining. The late afternoon sees a gentle slide down to 9 at 15:00, and the index softens to 6 by 16:00. As the day wanes, the UV levels drop, returning to a safe 1 by 19:00, offering a calm end to a sun-soaked day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels exhibit significant seasonal variations, with the highest risks occurring from February to September. During these months, the UV Index often peaks at 13, categorized as extreme, meaning that the time to burn can be as short as 10 minutes. Notably, March through July continues to present critical UV exposure levels, maintaining the extreme classification. As October approaches, the UV Index decreases to 10, still classified as very high, requiring caution. Residents and visitors are strongly advised to take protective measures such as wearing sunscreen, protective clothing, and seeking shade, especially during the peak exposure months. As winter approaches in November and December, UV levels drop, allowing for more comfortable outdoor activities but still warranting some precaution. Staying informed about the UV Index is essential for ensuring health and safety under the sun.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mazatlan | 7 | 10 | 11 | 13 | 13 | 12 | 12 | 12 | 12 | 10 | 8 | 6 |
| 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 |