Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Cyangugu, Rwanda, as it plays a vital role in promoting skin health and preventing sunburns. With its Cwb climate, characterized by mild temperatures yet significant sun exposure, knowing the daily UV levels can help you make informed decisions about outdoor activities. Particularly during midday hours, when the UV Index peaks at 12, the risk of harmful ultraviolet radiation increases substantially. By staying aware of these levels, you can protect your skin and enjoy the beautiful outdoors without compromising your health.
At dawn, the UV Index starts off low at 1 at 07:00, but as the sun rises, so does the intensity of UV radiation. By 09:00, it reaches 5, climbing rapidly to a peak of 12 at 12:00. The midday sun is fierce, with the UV Index hitting its maximum of 11 at 11:00 and slightly dropping to 8 by 14:00. As the afternoon progresses, the index declines steadily, returning to a more moderate 5 at 15:00, then tapering off to 2 by 16:00. The day concludes with a safe 1 at 17:00 and fades to 0 from 18:00 onwards, indicating a reprieve from UV exposure. Remember to protect your skin during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index consistently remains extremely high throughout the year, peaking at 17 in March. From January to May, the index ranges from 15 to 17, marking these months as high-risk periods for skin damage with a very short burn time of just 10 minutes. While the index slightly declines from June to August, it stays above 11, indicating continued vigilance is necessary. The UV Index then averages around 13 from September to December, maintaining an elevated risk level. Residents and visitors are advised to take appropriate sun safety measures year-round, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours to mitigate potential health impacts.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Gisenyi UVI | 15 | 16 | 16 | 16 | 14 | 12 | 11 | 13 | 14 | 13 | 13 | 13 |
Cyangugu | 15 | 16 | 17 | 16 | 14 | 12 | 11 | 13 | 14 | 13 | 13 | 13 |
Kigali UVI | 15 | 16 | 16 | 15 | 14 | 12 | 12 | 13 | 14 | 13 | 13 | 13 |
Gitarama UVI | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 13 | 14 | 13 | 13 | 13 |
Butare UVI | 14 | 16 | 17 | 16 | 14 | 12 | 12 | 13 | 15 | 13 | 13 | 13 |
Musanze UVI | 15 | 16 | 17 | 16 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 14 |