Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Katoro, Tanzania, where the risk of sun exposure is significant due to its Aw climate. As the sun reaches its peak, UV radiation can soar to dangerous levels, making awareness vital for preventing sunburn and long-term skin damage. With peak UV levels peaking at 12 around midday, knowing how to protect your skin is essential for maintaining good skin health. Be mindful of the UV Index each day to ensure your outdoor activities are both enjoyable and safe, especially during those intense hours when the sun is most potent.
As the sun rises, the UV Index starts low, peaking at a gentle 1 by 08:00. However, the intensity ramps up swiftly, hitting 3 by 09:00 and soaring to 8 by 11:00. The day reaches its blistering maximum at 12:00, where it spikes to an intense 11, peaking further at 13:00 with a 12. As the afternoon wanes, the index drops to 10 by 14:00, then gracefully descends to 8 at 15:00. The evening brings a gentle retreat, falling to 2 by 17:00 and settling back to a calm 0 by 19:00. Remember to stay protected when the sun is at its strongest!
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 | 12 | extreme | 10 min |
14:00 | 10 | very high | 15 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 in this region exhibits extreme levels throughout the entire year, peaking at 16 in March. From January to May, the UV Index remains consistently high, ranging from 14 to 16, marking these months as high-risk periods for sun exposure. Although the UV Index slightly decreases during the summer months (June to August), it stays within the 12 to 13 range, which still indicates significant risk. Residents and visitors should take precautionary measures year-round: wear broad-spectrum sunscreen, seek shade during peak hours, and remain vigilant about sun safety practices, as the burn time remains at a rapid 10 minutes regardless of the month.
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 |
Katoro | 14 | 15 | 16 | 15 | 14 | 11 | 12 | 13 | 14 | 13 | 13 | 13 |
Mwanza UVI | 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 |