Last updated: May 3, 2025
In Vadanakallu, Chad, understanding the UV Index is essential for protecting your skin and health under the bright sun. With UV levels peaking at 12 during midday, it's important to be aware of potential risks such as sunburn and long-term skin damage. The region's arid BWh climate typically exposes residents and visitors to significant UV radiation, making it crucial to take preventative measures when outdoors. By keeping an eye on the UV Index, you can enjoy the sun safely while safeguarding your skin's health.
At 07:00, the UV Index starts with a mild rating of 1, making it safe for morning activities. However, as the sun rises, it quickly gains intensity, peaking at a striking 12 by 12:00—the highest point of the day. The sun’s rays are strongest between 10:00 and 13:00, with a critical UV level of 11 at 11:00. As the afternoon progresses, the index begins to wane, dropping to 8 by 14:00, and further declining to 5 by 15:00. By 17:00, the UV Index decreases to a safer 1, paving the way for evening activities under less harsh sunlight. As night falls, the UV activity fades to 0 at 19:00, offering a gentle reminder of the sun's powerful presence during the day.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 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 | 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 changes, peaking in the spring and summer months with extreme levels predominantly from March to October. Specifically, March, April, July, and September reach an index of 13, categorizing them as high-risk months where exposure can lead to skin damage within just 10 minutes. Visitors and residents are strongly advised to take protective measures, including wearing sunscreen, protective clothing, and seeking shade during peak UV hours, especially from March through October. Conversely, January, November, and December fall under the very high exposure category with an index of 10 or 9, allowing for a slightly longer burn time of 15 minutes but still warranting caution. Overall, exercising vigilance throughout the year is essential for skin safety.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Abeche UVI | 10 | 12 | 12 | 11 | 11 | 11 | 12 | 13 | 12 | 10 | 9 | 9 |
N'Djamena UVI | 10 | 12 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 11 | 10 | 9 |
Vadanakallu | 10 | 11 | 13 | 13 | 12 | 12 | 13 | 12 | 13 | 12 | 10 | 9 |
Sarh UVI | 11 | 12 | 13 | 13 | 13 | 12 | 13 | 14 | 14 | 12 | 10 | 10 |
Moundou UVI | 11 | 12 | 13 | 14 | 13 | 12 | 13 | 13 | 14 | 12 | 10 | 10 |
Kelo UVI | 11 | 12 | 13 | 13 | 13 | 12 | 13 | 14 | 14 | 12 | 10 | 10 |