Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Badagry, Nigeria, where the Aw climate creates an environment with significant sun exposure year-round. Being aware of UV levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. With maximum UV readings reaching as high as 12 during midday hours, the risks associated with UV radiation are pronounced, making it essential for locals and visitors alike to stay informed and take precautionary measures against harmful effects.
The UV Index throughout the day showcases a significant peak around midday, making for an intriguing observation of sunlight intensity. Starting at 07:00, the index remains low at 1, gradually rising to 3 by 09:00. As the sun climbs higher, we reach a notable 6 by 10:00 and surge to its maximum intensity of 11 at noon, a warning to take protective measures. The afternoon sees a brief plateau with 12 at 13:00, before tapering off to 11 at 14:00 and declining steadily to 5 by 16:00. By 17:00, the index drops to 2, and the sunlight wanes, bringing it back down to 1 by 18:00 and finally settling at 0 by 19:00. This hourly data serves as an important reminder to stay vigilant under the sun, especially during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index levels trend noticeably high, particularly from January to October, where values consistently hover around 11 to 14 in the extreme category, resulting in a burn time of just 10 minutes. The high-risk months are clearly identified as April, when the UV Index peaks at 14, followed closely by March and a consistent level from May to October. As a result, it is crucial for both visitors and residents to take precautionary measures during these months, including wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sunlight hours to minimize the risk of skin damage. As the year transitions into November and December, while the UV Index drops to 9, the exposure remains very high, necessitating continued vigilance, albeit with slightly longer burn times of 15 minutes.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lagos UVI | 10 | 10 | 11 | 13 | 12 | 11 | 11 | 11 | 12 | 11 | 9 | 8 |
| Port Harcourt UVI | 10 | 11 | 11 | 14 | 12 | 11 | 11 | 11 | 12 | 12 | 10 | 9 |
| Ibadan UVI | 10 | 11 | 12 | 14 | 12 | 12 | 12 | 12 | 13 | 11 | 9 | 9 |
| Kano UVI | 10 | 12 | 13 | 11 | 11 | 11 | 12 | 13 | 12 | 11 | 10 | 10 |
| Badagry | 11 | 11 | 12 | 14 | 12 | 12 | 12 | 12 | 12 | 12 | 9 | 9 |
| Kaduna UVI | 10 | 12 | 12 | 12 | 11 | 12 | 13 | 13 | 13 | 11 | 10 | 10 |