Last updated: July 2, 2025
In Mariembourg, Belgium, staying informed about the UV Index is crucial for protecting yourself against harmful sun exposure. With the potential for sunburn and long-term skin damage, understanding UV levels helps residents and visitors make informed decisions about sun safety. Typically characterized by a Cfb climate, Mariembourg experiences fluctuating UV exposure throughout the year, particularly peaking between 12 PM and 3 PM with indices reaching as high as 8. Being aware of these levels not only enhances skin health but also ensures a safe and enjoyable outdoor experience under the Belgian sun.
At dawn, the UV Index starts off low, peaking at 1 by 8:00 AM, indicating minimal sun exposure risk. As the morning progresses, the index gradually climbs, reaching 4 by 10:00 AM. The midday sun kicks in, and from 12:00 PM to 3:00 PM, the UV Index surges to its peak of 8, emphasizing the need for sun protection. As the afternoon wanes, the index begins to drop, settling back to 4 by 5:00 PM and tapering off to 2 by 7:00 PM. It's a reminder of how the intensity of UV rays fluctuates throughout the day, urging us to stay vigilant under the sun!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | 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 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV exposure levels fluctuate significantly, with high-risk months occurring from April to August when the UV Index peaks, reaching a maximum of 8 during May, June, and July. Visitors and residents should note that during these months, the burn time decreases to as little as 15 minutes, indicating a heightened risk for skin damage. From January to March and again in September to November, the UV Index remains lower, with sandburn times ranging from 30 to 45 minutes in the moderate and low exposure categories. It’s crucial for everyone to stay informed about the UV Index and take appropriate precautions, such as wearing protective clothing and using sunscreen, especially during peak summer months when UV exposure can lead to serious health risks.
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 |
| Mariembourg | 2 | 3 | 4 | 6 | 8 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |