Last updated: August 1, 2025
Understanding the UV Index in Port-Vila, Vanuatu, is crucial for maintaining skin health and preventing sunburn in this beautiful tropical locale. With its Af climate, the region experiences consistently high UV exposure, particularly during midday hours when readings peak at 9. Being aware of the UV levels throughout the day not only helps residents and tourists plan their outdoor activities more safely but also empowers them to take necessary precautions against harmful ultraviolet rays. Whether you're basking on the beach or exploring the vibrant local culture, understanding the UV Index will enhance your Port-Vila experience while protecting your skin from potential damage.
The UV Index throughout the day demonstrates a distinct peak during the midday hours, reaching its maximum of 9 at 11:00 AM and again at 12:00 PM. As the sun rises, the UV Index begins at a mere 1 at 7:00 AM, gradually climbing to 4 by 9:00 AM. However, once the clock strikes 10:00 AM, the intensity escalates sharply to 7 before hitting its zenith. Following this, there is a slight tapering off in the afternoon hours, with values nearing 6 at 2:00 PM and gradually decreasing to 3 by 3:00 PM. As daylight wanes, the UV Index plummets, dropping to 1 by 4:00 PM and finally settling at 0 by 6:00 PM, signaling an end to the sun's powerful rays for the day. This data emphasizes the importance of sun protection, especially during those peak hours between 10:00 AM and 2:00 PM.
| 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 | 10 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | 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 |
Throughout the year, UV index levels exhibit seasonal variations, with certain months presenting a higher risk for skin damage. January through April see extremely high UV levels, peaking at 16, indicating a burn time of just 10 minutes. As we transition into May and June, the risk slightly lowers to very high levels (UV index 10 and 8, respectively), allowing for longer exposure times of 15 minutes. However, July through September continue to show elevated UV indices, particularly August, which returns to an extreme level of 12. As we move into the fall, October and November maintain high UV ratings, ultimately returning to extreme levels of 14 and 15 respectively, with persistent burn times of 10 minutes. Given this data, it's essential for residents and visitors alike to take precautions — wear sunscreen, protective clothing, and seek shade during peak hours, especially from January to April and during August to November, to mitigate the risk of UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Isangel UVI | 16 | 16 | 15 | 12 | 9 | 7 | 9 | 10 | 12 | 13 | 14 | 16 |
| Port-Vila | 16 | 16 | 15 | 13 | 10 | 8 | 9 | 12 | 13 | 14 | 15 | 15 |
| Norsup UVI | 16 | 16 | 16 | 13 | 11 | 8 | 10 | 12 | 13 | 15 | 14 | 15 |
| Luganville UVI | 16 | 16 | 16 | 14 | 11 | 9 | 10 | 12 | 13 | 15 | 14 | 15 |
| Port-Olry UVI | 16 | 16 | 16 | 14 | 11 | 9 | 10 | 12 | 14 | 15 | 14 | 15 |