Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Sembabule, Uganda, a region characterized by its Aw climate that brings significant sunshine year-round. As UV levels can peak dramatically throughout the day, reaching a maximum of 12 around midday, being aware of these fluctuations is essential for sunburn prevention and maintaining skin health. Higher UV exposure levels during the hottest hours can increase the risk of harmful effects, making it vital for locals and visitors alike to stay informed and take protective measures. By understanding and monitoring the UV Index, you can enjoy the beautiful outdoors safely while protecting your skin from the potential harms of excessive sun exposure.
The UV Index provides a compelling insight into daily sun exposure, with a noticeable rise as the day progresses. Starting off the morning at a modest 1 at 07:00 and 08:00, the index climbs steadily, reaching a threshold of 3 by 09:00. The sun reaches its peak intensity around 12:00, hitting a striking 11, indicating a high risk of harm from unprotected sun exposure. This UV intensity remains formidable, peaking at 12 by 13:00. As the afternoon wanes, the UV Index gradually declines to 8 at 15:00, before dipping to a safe 1 by 18:00 and dropping to 0 by 19:00. It’s essential to take precautions during the midday hours to shield against the sun’s rays!
| 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 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 4 | 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 remain consistently high, particularly from January to May, where values peak at 16 in March and maintain extreme exposure categories. This pattern continues into the summer, with UV Indexes around 12 to 14 from June to September. Thus, the high-risk months for UV exposure are March and February, with values of 16 and 15, respectively. To ensure safety, both visitors and residents should take protective measures throughout the year, including wearing sunscreen, protective clothing, and sunglasses, especially during these high-risk months, as burn time remains at just 10 minutes across all months. Staying hydrated and seeking shade during peak sunlight hours is also crucial to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kampala UVI | 14 | 15 | 16 | 15 | 13 | 11 | 11 | 12 | 13 | 12 | 12 | 12 |
| Jinja UVI | 14 | 15 | 16 | 15 | 13 | 11 | 11 | 12 | 13 | 12 | 12 | 12 |
| Gulu UVI | 14 | 15 | 16 | 15 | 14 | 12 | 12 | 13 | 14 | 13 | 12 | 12 |
| Lira UVI | 14 | 15 | 16 | 15 | 14 | 12 | 12 | 12 | 13 | 13 | 12 | 12 |
| Sembabule | 14 | 15 | 16 | 15 | 14 | 12 | 12 | 13 | 14 | 13 | 12 | 12 |
| Mbarara UVI | 14 | 15 | 16 | 15 | 14 | 12 | 12 | 13 | 14 | 13 | 12 | 12 |