Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Talofofo Village, Guam, where the tropical climate brings intense sunlight and varying UV exposure throughout the day. Awareness of UV levels can prevent sunburn and protect your skin health, allowing you to enjoy the beautiful surroundings safely. With peak UV readings reaching a significant 13 between noon and 1 PM, it's essential to stay vigilant to minimize the risks associated with this powerful radiation. Equip yourself with knowledge about the UV Index, and ensure your outdoor activities in Talofofo are both enjoyable and safe!
As the sun climbs higher, the UV Index reaches its peak intensity around 12:00 PM, soaring to a striking 13—a clear signal for outdoor enthusiasts to take precautions. The morning hours start gently, with a low of 1 at 07:00 AM, gradually escalating to 6 by 09:00 AM and hitting 9 at 10:00 AM. By 11:00 AM, the sun begins to assert itself with a 12. However, as the afternoon progresses, the UV intensity starts to wane, dropping to 10 at 2:00 PM, and tapering off to a mere 2 by 5:00 PM. As daylight diminishes, the UV Index dwindles to 0 by 7:00 PM, inviting a much-needed respite from the sun’s relentless rays. Always be vigilant and protect your skin during those peak hours!
| 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 | 13 | 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 |
Throughout the year, the UV Index remains extremely high, particularly from January to September, where it consistently peaks at 15 in March, April, and September. This period signifies the highest risk for sunburn, with a burn time of just 10 minutes under direct sunlight. February and June also present significant risks, making these months particularly dangerous for unprotected skin. As we move into the fall and winter months, the UV Index begins to decrease but still maintains a high level of 12 in November and 11 in December. Visitors and residents are strongly advised to take precautions year-round, such as using broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours to minimize the risks associated with intense UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Talofofo Village | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 15 | 14 | 12 | 11 |