Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Nukunonu, Tokelau, where the tropical climate brings frequent exposure to the sun's rays. With UV levels reaching a peak of 12 around midday, it’s essential to recognize how these levels can lead to sunburn and long-term skin health issues. Awareness of UV intensity not only helps in preventing immediate discomfort but also plays a significant role in reducing the risk of more serious conditions over time. Given Nukunonu's typical exposure risks, staying informed about the UV Index can empower you to protect your skin and enjoy the beautiful sunny days safely.
As the day unfolds, the UV Index rises steadily, peaking at a striking 12 between noon and 1 PM, a clear signal for the sun's intense power. Starting from a gentle 1 at 7 AM, it escalates to a moderate 4 by 9 AM, and then surges to an 8 by 10 AM, urging early risers to seek shade. The index reaches its zenith with an aggressive 11 at 11 AM, warning of the necessity to protect skin. As the afternoon wears on, it begins to decline, dropping to a 9 by 2 PM, and dwindling further to a 3 by 4 PM. By the time the clock strikes 6 PM, the index returns to a modest 1, providing a gentle reminder of the day’s solar intensity before fading to 0 by 7 PM. Enjoy the sun, but stay safe!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index remains notably high in this region, particularly during the early months, where values peak at 16 from January to March. These months, classified within the extreme exposure category, demand caution, as the burn time is just 10 minutes. As spring transitions to summer, the index decreases slightly to 12-14 in April and May, followed by a drop to 10 in June and July, categorized as very high with a burn time extended to 15 minutes. However, August sees a resurgence to 13, while September and October maintain 14-15, returning to the extreme classification. November and December consistently fall within the 14 range. Visitors and residents are advised to take necessary precautions year-round, utilizing sunscreen, protective clothing, and limiting sun exposure, particularly during high-risk months from January through September.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fale old settlement UVI | 15 | 16 | 16 | 14 | 12 | 10 | 10 | 13 | 14 | 15 | 14 | 14 |
| Nukunonu | 16 | 16 | 16 | 14 | 12 | 10 | 10 | 13 | 14 | 15 | 14 | 14 |
| Atafu Village UVI | 15 | 16 | 16 | 14 | 12 | 11 | 10 | 13 | 14 | 15 | 14 | 14 |