Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Mahanje, Tanzania, as it serves as a vital tool in safeguarding skin health and preventing painful sunburns. The UV levels here can vary significantly throughout the day, peaking at 10 between noon and 1 PM, which signals a strong risk for unprotected skin. With Mahanje's Cwb climate, characterized by its distinct wet and dry seasons, awareness of UV exposure risks is essential for enjoying the outdoors while protecting yourself against harmful ultraviolet rays. Stay informed and stay safe under the Tanzanian sun!
The UV Index for the day showcases a dramatic rise in sun intensity, peaking at 10 between noon and 1 PM. Early hours start off mild, with readings of 1 at 7 AM and 8 AM, which is perfect for morning strolls. As the clock ticks, the index climbs steadily; 3 by 9 AM and 5 by 10 AM signaling the sun’s strength is on the rise. The real heat kicks in at 11 AM, reaching 8, and then hitting its maximum of 10 during the critical midday hours. As the sun starts to wane post-1 PM, the index gradually drops, settling back down to 3 by 4 PM and returning to a cool 1 by 7 PM, making later hours a safer time to enjoy outdoor activities. Remember to stay protected 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 | 10 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 9 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal variation, with extreme levels persisting from January to April, and again in August through November, where the burn time remains critically short at around 10 minutes. In contrast, from June to July, the index is categorized as very high, allowing a slightly longer burn time of 15 minutes. High-risk months for UV exposure primarily include January through April and August to November, suggesting a need for heightened vigilance. Residents and visitors are strongly advised to take protective measures such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sun hours, to mitigate the risks associated with prolonged UV exposure.
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 |
Mahanje | 16 | 17 | 16 | 15 | 12 | 10 | 10 | 13 | 13 | 13 | 14 | 15 |
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 |