Last updated: July 2, 2025
Understanding the UV Index is vital for residents and visitors of Hamurana, New Zealand, as it plays a critical role in sunburn prevention and maintaining overall skin health. With Hamurana's temperate Cfb climate, UV levels can fluctuate throughout the day, peaking between 11:00 AM and 1:00 PM, when the index reaches a level of 3—a reminder to protect your skin during these hours. By staying informed about UV exposure risks, you can enjoy the beautiful outdoor activities Hamurana has to offer while minimizing the risk of harmful sun exposure.
The UV Index data reveals a gentle rise in sun exposure as the day unfolds. Starting from a calm 0 at 7:00 AM, the index gradually climbs to peak at 3 between 11:00 AM and 1:00 PM, signaling the most intense sun exposure during midday. As the clock ticks past 2:00 PM, the index gently declines, reaching a soothing 1 by late afternoon, before tapering off completely to 0 by 6:00 PM. For sun-seekers and outdoor enthusiasts, the midday hours demand precaution, while the early morning and late evening provide enjoyable, low-UVI moments.
| 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 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 3 | moderate | 30 min |
| 13:00 | 3 | moderate | 30 min |
| 14:00 | 2 | low | 45 min |
| 15:00 | 1 | low | 45 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 significant seasonal fluctuations, peaking during the winter months of January and February with an extreme index of 14, necessitating a burn time of only 10 minutes. Following that, March sees a drop to a very high index of 10, with a slightly extended burn time of 15 minutes. The UV exposure then decreases gradually into the spring and summer, reaching a moderate index of 4-5 by May through August, where the burn time stabilizes around 30 minutes. Notably, September sees a return to high levels (UV Index 7), while October peaks again at 9 under very high exposure. As the year closes, November and December bring extreme levels again, registering 11 and 13 respectively, with burn times back down to 10 minutes. Thus, visitors and residents are advised to exercise caution during the high-risk months of January, February, and November by employing sun protection measures, and to remain vigilant during the transitional months to reduce the risk of sunburn and long-term skin damage.
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 |
| Hamilton UVI | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 11 | 13 |
| Hamurana | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 9 | 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 |