Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Wairau Valley, New Zealand, as it plays a vital role in safeguarding skin health and preventing sunburn. With a climate that often exposes individuals to varying UV levels throughout the day, awareness of these indexes can help you enjoy the outdoors while minimizing the risk of harmful effects from the sun. Typically, UV exposure in the Wairau Valley peaks around midday, with levels climbing to 2 between 11:00 AM and 2:00 PM. By staying informed about the UV Index, you can take proactive steps to protect yourself and your loved ones from the sun's harmful rays.
The UV Index shows a gradual ascent throughout the morning, beginning at 0 at 07:00 and reaching a peak of 2 between 11:00 and 14:00. From 08:00 to 10:00, the index remains at 1, indicating a low risk of harm from unprotected sun exposure. As the afternoon approaches, the UV levels remain stable at 2 during the midday hours, suggesting a moderate risk, before tapering off later in the day. By 15:00, the index drops back to 1 and eventually returns to 0 by the evening, signaling a safe end to sun exposure as daylight fades. Enjoy the sun wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 1 | low | 45 min |
| 11:00 | 2 | low | 45 min |
| 12:00 | 2 | low | 45 min |
| 13:00 | 2 | low | 45 min |
| 14:00 | 2 | low | 45 min |
| 15:00 | 1 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 0 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with the highest risk occurring in the winter and late fall months of January, February, November, and December, where it reaches a critical level of 13, categorized as extreme, with a burn time of only 10 minutes. As spring approaches, March and October see a drop to a very high level of 9, while April and September present a high risk with indices of 7 and 6, respectively, allowing for longer burn times of 25 minutes. May and August show moderate levels at 4, offering burn times of 30 minutes, whereas the summer months of June and July maintain a low risk at 2, with extended burn times of 45 minutes. It is essential for both visitors and residents to take precautions, especially during the high-risk months from January to February and November to December, by using sunscreen, wearing protective clothing, and seeking shade to minimize UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Christchurch UVI | 13 | 12 | 9 | 6 | 3 | 2 | 2 | 3 | 5 | 9 | 10 | 12 |
| Wellington UVI | 13 | 13 | 9 | 7 | 4 | 2 | 2 | 4 | 6 | 9 | 10 | 13 |
| Wairau Valley | 13 | 13 | 9 | 7 | 4 | 2 | 2 | 4 | 6 | 9 | 11 | 13 |
| Hamilton UVI | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 11 | 13 |
| Manukau City UVI | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 11 | 13 |
| Auckland UVI | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 11 | 13 |