Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Oneop Village, Micronesia, where the sun’s powerful rays can pose significant risks year-round. With a tropical climate (Af), the area experiences high levels of UV radiation, especially during midday when the index peaks at a striking 14. Being aware of these UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. By keeping an eye on the daily UV Index, you can take proactive steps to protect yourself against UV exposure's harmful effects and enjoy the beautiful island environment safely.
At 07:00, the UV Index starts at a modest 2, but as the sun rises higher, it escalates rapidly. By 08:00, the index doubles to 4, signaling a gradual increase in UV exposure. The peak arrives between 10:00 and 12:00, where it hits an impressive 14, indicating a high risk of harm from unprotected sun exposure. Temperatures soar as the index dips slightly to 12 by 13:00 and further declines to 9 by 14:00. As the afternoon progresses, the UV levels plummet, dropping to 5 at 15:00 and falling to 2 by 16:00. The sun's strength fades further with readings of 1 at 17:00 and finally reaching 0 after 18:00. It's a stark reminder of the sun's intensity, urging everyone to prioritize sun safety during those peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 12 | extreme | 10 min |
| 11:00 | 14 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences minimal fluctuation throughout the year, consistently remaining in the extreme exposure category. January through April sees the highest levels, peaking at 16 in March and 17 in April, making these months particularly hazardous for sun exposure, as even a brief 10-minute exposure can lead to burns. May maintains a high index of 14, and while June drops slightly to 13, it remains critical. Surprisingly, UV levels stay consistent at 14 from July through October, indicating that the risk persists even in the latter half of the year. As temperatures begin to cool in November and December, the UV Index gradually lowers to 13 and 12, respectively, yet the risk of harm is still significant. Visitors and residents should take proactive measures year-round, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak hours, to reduce their risk of UV-related health issues.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kolonia Town UVI | 13 | 14 | 16 | 16 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 11 |
| Kolonia UVI | 13 | 14 | 16 | 16 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 11 |
| Colonia UVI | 12 | 14 | 16 | 16 | 14 | 13 | 14 | 15 | 14 | 14 | 12 | 11 |
| Weno UVI | 13 | 15 | 16 | 16 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 12 |
| Tofol UVI | 14 | 15 | 16 | 16 | 15 | 13 | 13 | 14 | 14 | 13 | 12 | 12 |
| Oneop Village | 13 | 15 | 16 | 17 | 14 | 13 | 14 | 14 | 14 | 14 | 13 | 12 |