Last updated: July 2, 2025
In Maposeni, Tanzania, awareness of the UV Index is crucial for ensuring your skin's health and preventing sunburn, especially given its tropical climate. Understanding UV levels helps residents and visitors take necessary precautions during peak hours, typically between 10 AM and 2 PM, when the index skyrockets up to 10, indicating very high exposure risk. With sunny days prevalent in this Cwa climate zone, being informed about UV radiation can help you enjoy outdoor activities while safeguarding your skin against harmful effects. Stay sun-safe and keep your health in check!
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 data indicates extreme UV exposure levels from January through April, with consistent values of 16, resulting in a quick burn time of just 10 minutes. May sees a slight decrease to an index of 12 but remains in the extreme category. As we move into the summer months of June and July, the UV Index drops to 10, classified as very high, allowing for a slightly longer burn time of 15 minutes. However, the extreme levels return in August and persist through November, with values of 13-14, while maintaining the brief 10-minute burn time. December mirrors earlier months with an index of 15. Given these findings, residents and visitors should take precautions during all months, particularly from January to April and during the early fall months of August and September when the UV exposure is at its highest. Always wear sunscreen, protective clothing, and seek shade when possible to reduce the risk of skin damage from UV rays.
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 |
| Maposeni | 16 | 16 | 16 | 15 | 12 | 10 | 10 | 13 | 14 | 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 |