Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Mongmong-Toto-Maite Village, Guam, where the tropical climate brings about unique sun exposure risks. With UV levels often peaking at 14 during midday, awareness of these readings is essential to prevent sunburn and protect skin health. As conditions fluctuate throughout the day, knowing when to seek shade or use sunscreen can make all the difference in maintaining a healthy lifestyle in this sunny village. Whether you're soaking up the vibrant culture or enjoying outdoor activities, being informed about the UV Index helps ensure your time in this tropical paradise is both enjoyable and safe.
The UV Index journey throughout the day reveals a dynamic and intense sunlight experience. Starting with a gentle maximum of 1 at 7:00 AM, the index climbs steadily, reaching 3 by 8:00 AM. It then takes a commanding leap to 6 at 9:00 AM, before peaking at a striking 14 around 12:00 PM—the moment when sun safety is most crucial. As the afternoon progresses, the UV intensity begins to taper off, dipping to 10 at 2:00 PM, and down to 4 by 4:00 PM. Finally, the day wraps up with a return to more manageable levels, settling at 0 by 7:00 PM. This data highlights the importance of protective measures during peak hours 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 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits extreme levels throughout the year, with consistent ratings between 11 and 15 from January to September. The highest UV Index of 15 occurs in March, April, and September, marking these as the high-risk months for sun exposure. Visitors and residents should be particularly cautious during these months, as the burn time is as short as 10 minutes across all months listed, indicating a significant risk of skin damage. To ensure safety, it is crucial to use adequate sun protection, such as broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mongmong-Toto-Maite Village | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |
| Barrigada Village UVI | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |
| Mangilao Village UVI | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |
| Tamuning-Tumon-Harmon Village UVI | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |
| Yigo Village UVI | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |
| Dededo Village UVI | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 13 | 12 | 11 |