Last updated: May 3, 2025
Understanding the UV Index in Otjiwarongo, Namibia is crucial for residents and visitors alike, as it directly impacts sunburn prevention and long-term skin health. With Otjiwarongo's climate characterized by ample sunshine and high UV exposure, knowing the daily UV levels can help you take proactive measures to protect yourself from harmful rays. During the peak hours, particularly between 11:00 AM and 2:00 PM, the UV Index can soar to a maximum of 9, signaling a very high risk of harm from unprotected sun exposure. By staying informed, you can enjoy your time outdoors while safeguarding your skin.
The UV Index today presents a striking pattern of intensity throughout the day. Early risers will find the UV levels at 0 until 8:00 AM, gradually increasing to a moderate 2 by 9:00 AM. However, the sun peaks at noon with a high 9, indicating a strong need for protection. This intensity lingers until 1:00 PM, before it starts to taper off, falling to 6 by 3:00 PM. As the sun sets, UV exposure diminishes sharply, leading to a return to mild levels by late afternoon, finally resting at 0 by 7:00 PM. Remember to stay protected during the peak hours of 11 AM to 1 PM, when the ultraviolet rays are most potent!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | 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, UV levels experience significant fluctuations, with the highest risks observed from January through April, where the UV Index reaches extreme levels (16-17) and a burn time of just 10 minutes. During this period, visitors and residents should take extra precautions, such as wearing protective clothing, applying sunscreen regularly, and seeking shade. As we transition into late spring and summer, May to August still presents very high UV Index levels (8-9), where a burn time increases slightly to 15 minutes. The risk remains considerable, so maintaining sun safety is essential. As autumn approaches in September and October, the UV Index rises again to extreme levels (13-14), necessitating continued vigilance. In November and December, the UV Index remains high (15-16), reinforcing the need for sun protection throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Swakopmund UVI | 14 | 14 | 12 | 11 | 8 | 6 | 6 | 8 | 11 | 12 | 13 | 14 |
| Walvis Bay UVI | 14 | 14 | 12 | 11 | 8 | 6 | 6 | 8 | 11 | 12 | 13 | 14 |
| Windhoek UVI | 16 | 17 | 14 | 12 | 9 | 7 | 7 | 10 | 12 | 14 | 15 | 16 |
| Rundu UVI | 17 | 17 | 15 | 13 | 10 | 8 | 8 | 10 | 12 | 12 | 15 | 15 |
| Otjiwarongo | 16 | 17 | 14 | 12 | 9 | 8 | 8 | 10 | 13 | 14 | 15 | 16 |
| Oshakati UVI | 17 | 17 | 16 | 13 | 10 | 9 | 9 | 11 | 13 | 14 | 15 | 16 |