Last updated: July 2, 2025
In Silverstream, New Zealand, being aware of the UV Index is essential for maintaining skin health and preventing sunburn. Understanding UV levels helps residents take the necessary precautions during peak sunlight hours, ensuring safe outdoor activities. With a Cfb climate characterized by mild temperatures, the region can still experience significant UV exposure, especially around midday when the index reaches up to 2. By staying informed about the UV Index, Silverstream locals can enjoy the outdoors while protecting their skin from potential harm.
The UV Index throughout the day reveals a gradual ascent as the sun climbs high in the sky. Starting at a maximum of 0 at 07:00, the index slowly advances to 1 from 08:00 to 10:00. By 11:00, it reaches 2, peaking at this level from 12:00 to 14:00, indicating a moderate risk for harm from unprotected sun exposure. As the afternoon wanes, the UV intensity begins to taper off, descending to 1 by 15:00 and then returning to 0 by 18:00. This hourly fluctuation emphasizes the importance of being sun-smart during those midday hours when the UV Index is at its peak.
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 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index shows significant seasonal changes, with the highest risk occurring from January to February and December, where the index peaks at 13 and is categorized as extreme, indicating a burn time of just 10 minutes. March and November follow closely, with a very high index of 9 to 10, suggesting a burn time of 15 minutes. The high-risk months are therefore primarily winter and late fall, making it essential for visitors and residents to exercise caution during these periods. During the spring, the index reduces to 7 in April, and moderate levels can be found in May and August, while June and July have low UV exposure, allowing for safer outdoor activities. To protect skin health, it's advisable to wear sunscreen, protective clothing, and seek shade during peak UV hours, particularly in high-risk months.
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 |
Silverstream | 13 | 13 | 9 | 7 | 4 | 2 | 2 | 4 | 6 | 9 | 10 | 13 |
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 |
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 |