Last updated: July 2, 2025
Understanding the UV Index in Katoro, Tanzania is crucial for protecting your skin from harmful ultraviolet rays. As you enjoy the vibrant climate typical of this region, it’s essential to grasp the significance of UV levels to prevent sunburn and promote overall skin health. With maximum UV Index values soaring to 11 during midday hours, residents and visitors must take proactive measures to mitigate their exposure. Stay informed about local UV levels to enjoy the beautiful outdoor activities Katoro has to offer, while safeguarding your skin from the sun's potential damage.
The UV index for the day displays a dramatic rise in intensity, beginning with a gentle start at 7:00 AM and 8:00 AM, both at a low 1. As the sun climbs higher, the index quickly escalates to 3 by 9:00 AM, reaching a moderate 5 at 10:00 AM. However, the peak occurs at 12:00 PM and 1:00 PM, where it strikes a critical 11, indicating a high risk of harm from unprotected sun exposure. As the afternoon progresses, the index starts to decline, dropping to 10 at 2:00 PM, then down to 4 by 4:00 PM. The day winds down with a gentle descent, with values diminishing to 1 at 6:00 PM and ultimately 0 by 7:00 PM. Plan accordingly to keep your skin safe 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | 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, peaking between January and March, where values reach a staggering 16. This indicates an extreme exposure category with a burn time of just 10 minutes. As the months progress, UV Index values slightly decrease but remain highly concerning, especially in February and March, which are critical months for UV exposure. From April to August, the UV Index fluctuates between 11 to 15, still classified as extreme, signifying a continuous risk. Visitors and residents are strongly advised to take precautionary measures during these high-risk months, including wearing sunscreen, protective clothing, and avoiding direct sun exposure during peak hours to minimize the risk of skin damage. Remember, even in the seemingly less intense months like November and December with a UV Index of 13, consistent protective behaviors are essential. Stay safe and vigilant!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zanzibar UVI | 14 | 14 | 14 | 14 | 12 | 10 | 10 | 12 | 13 | 13 | 13 | 13 |
| Dar es Salaam UVI | 14 | 14 | 15 | 14 | 12 | 10 | 10 | 12 | 13 | 13 | 13 | 13 |
| Mwanza UVI | 14 | 15 | 16 | 15 | 13 | 11 | 11 | 13 | 14 | 13 | 13 | 13 |
| Katoro | 14 | 15 | 16 | 15 | 13 | 11 | 11 | 13 | 14 | 13 | 13 | 13 |
| Arusha UVI | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 14 |
| Mbeya UVI | 16 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 14 | 15 |