Last updated: June 2, 2025
Understanding the UV Index is crucial for everyone in Napier, New Zealand, where residents and visitors alike can enjoy the sunny climate year-round. Monitoring UV levels helps prevent sunburn and supports long-term skin health, making it essential to stay informed about your exposure. In this coastal city with its temperate Cfb climate, UV risks can peak during midday hours, even on seemingly mild days. With UV Index readings frequently reaching levels of 2 during the late morning and early afternoon, being proactive about sun safety is key to enjoying Napier's beautiful outdoors responsibly.
From the early hours of the day, the UV Index starts at 0 at 7:00 AM, indicating minimal risk. As the sun climbs higher, it gradually increases to 2 by 10:00 AM, peaking at 2 from 10:00 AM to 2:00 PM, which suggests a moderate risk for harm from unprotected sun exposure. After a brief peak, the index begins to decline again, returning to 1 by 3:00 PM and dropping to 0 by 5:00 PM, signaling a safe time to be outdoors without sun protection. Overall, it's a fairly mild day for UV exposure, making it a good time for outdoor activities—but remember to stay mindful of the midday sun!
| 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 | 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, seasonal fluctuations in UV index levels highlight the importance of sun safety for both visitors and residents. The high-risk months occur in January, February, November, and December, where UV indices reach extreme levels (up to 14), resulting in a burn time of just 10 minutes. March and October also present considerable risk with very high levels (UV index of 9) and a burn time of 15 minutes. As the year progresses into April and September, while the UV index drops to high (7 and 6, respectively), exposure remains risky, with burn times of 25 minutes. From May to August, the UV index reaches moderate levels (4 and 3), allowing for safer sun exposure but still warrants caution. It is essential for everyone to protect their skin during these times by seeking shade, wearing protective clothing, and applying sunscreen to mitigate the risks associated with 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 |
| Napier | 14 | 13 | 9 | 7 | 4 | 3 | 3 | 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 |