Last updated: May 3, 2025
Understanding the UV Index is crucial for the residents and visitors of West Island, Cocos (Keeling) Islands, where sun exposure can quickly become intense. With a tropical climate characterized by high UV levels, especially from late morning to early afternoon, being aware of UV radiation can help prevent sunburn and protect skin health. As the UV Index peaks at 11 around noon, understanding these levels enables individuals to take proactive measures against harmful effects, ensuring enjoyable and safe outdoor activities while basking in the island's beauty.
The UV Index throughout the day presents a clear narrative of the sun's intensity. Starting at a gentle 1 at 07:00, the day quickly warms up, reaching 4 by 08:00. As the clock strikes 09:00, it escalates to 7, and by 10:00, it peaks at an intense 10. The intensity continues to surge, hitting a maximum of 11 from 11:00 to 12:00—a reminder to apply that sunscreen! Gradually, the index begins to decline, dropping to 9 at 13:00, and then diminishing to 6 by 14:00. From there, the UV levels swiftly taper off, resting at 3 by 15:00, and further declining to 1 by 16:00 and through 17:00. Finally, as the sun sets, the index cools off to 0 by 18:00, offering a soothing end to the day under the diminishing rays of light.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | 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 seasonal variations, with the highest readings occurring from January to November, consistently categorized as extreme exposure, resulting in a rapid burn time of just 10 minutes. Notably, February and November see peak values of 16, indicating particularly high risk during these months. As the summer months approach, the UV Index slightly decreases, reaching 10 in June, yet stays within the very high category. However, July and August return to extreme levels, reminding us that protection is essential year-round. Visitors and residents are strongly advised to take precautions against UV exposure, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak index months of January, February, and November.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| West Island | 15 | 16 | 15 | 14 | 11 | 10 | 11 | 13 | 14 | 15 | 16 | 15 |