Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Kapenguria, Kenya, where high levels of sun exposure can pose significant risks to skin health. With UV levels peaking between midday, it’s essential to recognize how these fluctuations can lead to sunburn and long-term skin damage. Located in a Cfb climate zone, Kapenguria experiences a unique blend of warm temperatures and sun intensity, making it imperative for locals to stay informed about daily UV ratings. By understanding the UV Index, you can decisively protect yourself and your loved ones from the harmful effects of ultraviolet radiation while enjoying the vibrant outdoor lifestyle this picturesque region offers.
The UV Index throughout the day showcases a dramatic rise and fall in intensity, making sun safety especially crucial during peak hours. Starting from a low of 1 at 07:00 and 08:00, the index climbs rapidly, hitting 3 by 09:00. As the sun reaches its zenith, the UV Index peaks at an impressive 13 at 13:00—a clear indication of the need for proper sun protection. Following this peak, it begins to decline, dropping to 11 at 14:00 and then to 8 by 15:00. The afternoon brings a gentle easing, with the index falling to 2 by 17:00, before dropping to a minimal 0 after sunset. To enjoy the day while staying safe, be sure to seek shade and apply sunscreen during those high UV exposure 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 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | 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 |
The UV Index remains consistently high throughout the year, with extreme exposure levels noted from January to May, peaking at 17 in both February and March. April and May see only slightly lower values, yet still indicate significant risk. High-risk months for sun exposure are therefore January to May, where a it is crucial to limit unprotected sun exposure to just 10 minutes to prevent skin damage. Though the index slightly decreases from June to November, careful monitoring is still advised as the UV Index remains at a minimum of 12 during this period. Visitors and residents are strongly recommended to wear protective clothing, use sunscreen generously, and seek shade when the sun is strongest to ensure their safety year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mombasa UVI | 14 | 14 | 15 | 14 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 12 |
| Kikuyu UVI | 15 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 13 | 13 |
| Ruiru UVI | 15 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 13 | 13 |
| Nairobi UVI | 15 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 13 | 13 |
| Kapenguria | 15 | 17 | 17 | 16 | 14 | 12 | 13 | 13 | 14 | 14 | 13 | 13 |
| Nakuru UVI | 16 | 17 | 17 | 17 | 14 | 12 | 13 | 14 | 15 | 15 | 14 | 14 |