Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Isa, Nigeria. With intense sun exposure characteristic of the BSh climate zone, being aware of UV levels can significantly aid in sunburn prevention and promoting long-term skin health. The UV Index peaks at 11 around noon, indicating a very high risk of harm from unprotected sun exposure. As the sun's intensity fluctuates throughout the day, recognizing these levels is key to taking appropriate precautions and safeguarding yourself from potential skin damage. Stay informed to enjoy the vibrant sunshine of Isa while keeping your skin safe!
The UV Index throughout the day showcases a dramatic increase in intensity, reaching its peak at 12:00 PM and 1:00 PM with a scorching 11. Early morning sees a mild start, with readings of 1 at 7:00 AM and climbing to 2 by 8:00 AM. As the day progresses, the index escalates, hitting 4 by 9:00 AM and a notable 7 at 10:00 AM. The midday sun takes its toll, as the index spikes to 9 by 11:00 AM. Following this, it stabilizes at its zenith of 11 before beginning its descent—dropping to 9 at 2:00 PM and then tapering down to 6 by 3:00 PM. The evening offers a welcome relief with levels declining to 2 at 5:00 PM, and ultimately sinking to 0 by 7:00 PM. This hourly data clearly illustrates the importance of sun protection during peak UV hours, especially from 11 AM to 1 PM when the sun is at its strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The seasonal UV changes indicate a significant increase in UV Index values from January to August, peaking at 13 in August, categorized as extreme. High-risk months for UV exposure include February through October, where the index remains consistently between 11 and 13, necessitating caution. With a burn time as low as 10 minutes during these months, it is crucial for both visitors and residents to take precautions such as wearing protective clothing, applying sunscreen, and seeking shade during peak sunlight hours to minimize the risk of skin damage. As the year progresses into November and December, the UV Index decreases to 10, classified as very high, making sun safety still relevant, though slightly less urgent.
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 |
| Isa | 10 | 11 | 12 | 12 | 11 | 11 | 12 | 13 | 12 | 11 | 10 | 10 |
| 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 |
| Kaduna UVI | 10 | 12 | 12 | 12 | 11 | 12 | 13 | 13 | 13 | 11 | 10 | 10 |