Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of San Antonio Suchitepequez, Guatemala, where the climate's Aw zone brings a distinctively warm and sunny atmosphere. With UV levels peaking at a striking 13 during midday, awareness of these radiation levels is essential for protecting skin health and preventing painful sunburns. Safeguarding against excessive UV exposure not only helps maintain your skin's well-being but is also vital for long-term health. As you navigate sunny days in San Antonio, being informed about the UV Index empowers you to enjoy the outdoors while keeping your skin safe from harmful effects.
As the day unfolds, the UV Index rises dramatically, peaking at 13 around 12:00 PM, signaling a maximum level of sun intensity. Early morning hours start off mild, with a low of 1 at 07:00 and climbing steadily to 6 by 09:00. The sun reaches its zenith at 11:00, with a value of 12, before gradually declining through the afternoon. By 15:00, the index drops to 6, further falling to 3 by 16:00 and finally returning to a safe 1 by 17:00. As twilight approaches, the index settles to 0 after 19:00, providing a serene close to the day. Remember to protect your skin during the peak hours from 10 AM to 2 PM, when the sun's rays are most potent!
| 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 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index in this region exhibits significant seasonal variations, peaking from January to September, where it reaches extreme levels. The highest UV Index of 14 occurs in April, signaling a critical period for sun exposure. February through September are identified as high-risk months, with consistently extreme levels and a burn time as short as 10 minutes. In contrast, November and December see a drop to a very high UV Index of 9, allowing for a slightly longer safe exposure time of 15 minutes. Visitors and residents are advised to take precautionary measures during these peak months, such as wearing protective clothing, using high-SPF sunscreen, and seeking shade during midday hours to minimize the risk of harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Antonio Suchitepequez | 10 | 11 | 13 | 14 | 13 | 13 | 13 | 12 | 13 | 12 | 9 | 9 |
| Petapa UVI | 11 | 13 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 10 | 10 |
| Villa Nueva UVI | 11 | 13 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 10 | 10 |
| Mixco UVI | 11 | 13 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 11 | 10 |
| Guatemala City UVI | 11 | 13 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 11 | 10 |
| San Juan Sacatepequez UVI | 11 | 13 | 15 | 15 | 14 | 14 | 15 | 14 | 14 | 13 | 11 | 10 |