Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Rundu, Namibia, where the tropical climate tends to expose people to higher levels of ultraviolet radiation. Awareness of UV levels is essential not just for preventing sunburn, but also for protecting long-term skin health and reducing the risk of skin cancer. With the UV Index peaking at 8 around midday, Rundu's strong sunlight can intensify exposure risks, making it important for locals to stay informed. Whether it’s enjoying the sunny outdoors or working in the heat, knowing the UV Index helps everyone make safer choices and enjoy their time under the Namibian sun!
At dawn, the UV Index starts at a cool 0 at 07:00, indicating minimal sun exposure risk. As the day unfolds, it slowly rises, reaching 1 by 08:00 and climbing to 2 by 09:00. The sun gains strength, peaking at 8 from 12:00 to 13:00—be sure to wear sunscreen during these hours! A gradual decline follows, with the index dropping to 7 at 14:00, then tapering off to 5 by 15:00. By late afternoon, the UV Index decreases further, sinking to 3 at 16:00, before returning to 1 by 17:00 and settling back at 0 as night falls at 19:00. This hourly trend underscores the importance of protecting your skin when the sun is at its zenith!
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 | 6 | high | 25 min |
12:00 | 8 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 5 | moderate | 30 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 |
The UV Index exhibits significant seasonal variations, indicating critical changes in sun exposure risk. From January to April, the UV Index remains extremely high, with values of 17 and 15, leading to a burn time of just 10 minutes. May through August sees a slight decrease, with a very high exposure category (UV Index 8-10) where the burn time extends to 15 minutes. As temperatures begin to cool in September and October, the risk rises back to an extreme level (UV Index 12), again reducing burn time to 10 minutes. November and December maintain this high risk with a UV Index of 15. Visitors and residents should exercise extreme caution, particularly from January to April and during November and December, ensuring adequate sun protection, including sunscreen, hats, and protective clothing while limiting direct sun exposure to reduce the risk of harmful effects.
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 | 17 | 17 | 15 | 13 | 10 | 8 | 8 | 10 | 12 | 12 | 15 | 15 |
Oshakati UVI | 17 | 17 | 16 | 13 | 10 | 9 | 9 | 11 | 13 | 14 | 15 | 16 |