Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Gayeri, Burkina Faso, where the BSh climate presents unique sun exposure challenges. With peak UV levels reaching as high as 13 during midday hours, being aware of these risks is essential for sunburn prevention and maintaining overall skin health. As UV radiation can cause both immediate harm and long-term effects, knowing when to seek shade or apply sunscreen can help protect your skin while enjoying the beautiful weather Gayeri has to offer. Prioritizing UV Index awareness not only enhances personal safety but also fosters a culture of health in this vibrant community.
As the day unfolds, the UV Index rises dramatically, peaking at 13 around 12:00 PM, signaling a maximum level of sun intensity. Early morning hours start off mild, with a low of 1 at 07:00 and climbing steadily to 6 by 09:00. The sun reaches its zenith at 11:00, with a value of 12, before gradually declining through the afternoon. By 15:00, the index drops to 6, further falling to 3 by 16:00 and finally returning to a safe 1 by 17:00. As twilight approaches, the index settles to 0 after 19:00, providing a serene close to the day. Remember to protect your skin during the peak hours from 10 AM to 2 PM, when the sun's rays are most potent!
| 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 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 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 |
Throughout the year, UV Index levels exhibit significant seasonal variation, peaking during the summer months. From January to March, the UV Index escalates from 10 to 12 with exposure categorized as very high to extreme, indicating a burn time as short as 10–15 minutes. The highest risk months are from June to August, where the UV Index surges to a peak of 14, maintaining an extremely high risk with a burn time of only 10 minutes. As fall approaches, the index gradually decreases, yet remains in the extreme category through September and October. By November and December, the UV Index drops to 9, still classified as very high but allowing for slightly longer burn times of 15 minutes. Residents and visitors are advised to take great care during the high-risk months, particularly from April to October. It’s essential to apply broad-spectrum sunscreen, wear protective clothing, and seek shade to reduce the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gayeri | 10 | 11 | 12 | 12 | 12 | 12 | 13 | 14 | 12 | 11 | 9 | 9 |
| Ouahigouya UVI | 10 | 11 | 12 | 13 | 12 | 12 | 14 | 14 | 12 | 11 | 10 | 9 |
| Koudougou UVI | 10 | 11 | 12 | 13 | 12 | 13 | 13 | 14 | 13 | 12 | 10 | 9 |
| Ouagadougou UVI | 11 | 11 | 12 | 13 | 12 | 13 | 13 | 14 | 13 | 12 | 10 | 9 |
| Bobo-Dioulasso UVI | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 12 | 10 | 10 |
| Banfora UVI | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 12 | 10 | 10 |