Last updated: June 2, 2025
In Chatillon, Belgium, awareness of the UV Index is crucial for maintaining healthy skin and preventing sunburns. Understanding the varying UV levels throughout the day helps residents and visitors alike make informed choices about sun exposure. With a Cfb climate, Chatillon experiences moderate temperatures and frequent cloud cover, but this shouldn't mask the risks of UV radiation—especially during peak hours when the index can soar to as high as 9. Stay informed and protect your skin by checking the UV Index regularly!
Radiating through the early hours, the UV Index begins with a gentle 1 at 07:00, gradually climbing to 2 by 08:00. As the sun ascends, so does the intensity, peaking at 9 by 13:00, indicating the day's highest UV exposure. A slight dip occurs as the clock ticks past the afternoon, with values decreasing to 6 at 16:00 and further to 4 by 17:00. As the day transitions to evening, the index falls back to 3 at 18:00 and concludes at a modest 1 by 19:00. This hourly progression highlights the importance of sun safety, particularly during the midday hours when protection is essential!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with high-risk months identified primarily from April to August, where the index peaks at an alarming 9 in June. During these months, the exposure category escalates to very high, resulting in a burn time of just 15 minutes for unprotected skin. In contrast, January, November, and December have low UV levels, making sun protection less critical, with burn times extending to 45 minutes. As such, it’s essential for both visitors and residents to stay vigilant during the peak months by applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade, especially between 10 AM and 4 PM, when UV rays are strongest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gent UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Antwerpen UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Brussels UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Liege UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Charleroi UVI | 2 | 3 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Chatillon | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |