Last updated: July 2, 2025
Understanding the UV Index is essential for safeguarding your skin health in Uvinza, Tanzania, where the sun can be intense. With a typical Aw climate, residents and visitors alike experience varying UV exposure throughout the day, peaking between 11:00 AM and 1:00 PM, reaching levels of 10 to 11. Awareness of these UV levels is crucial not only for preventing painful sunburns but also for reducing the long-term risk of skin damage. By staying informed about the UV Index in Uvinza, you can take proactive steps to protect yourself and enjoy the sunny days ahead!
The UV Index today presents a dynamic journey from dawn to dusk. Starting off with a 0 at 07:00, early risers are safe from harmful rays. As the sun climbs higher, the index ticks up to 1 by 08:00 and then to 2 at 09:00, signaling the gentle start of UV exposure. 10:00 marks a noticeable increase, soaring to 5, but the peak arrives at 12:00 with an impressive 10—a point where sunscreen becomes a must! The intensity of UV radiation continues to rise, hitting 11 at 13:00, before gradually declining to 7 by 15:00. As the day winds down, the UV Index declines to 4 at 16:00, dipping further to 2 by 17:00, and finally retreating to a safe 0 as evening approaches at 19:00. Plan outdoor activities wisely to stay protected during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 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 |
The UV Index demonstrates significant seasonal variations, consistently remaining in the extreme exposure category throughout the year. The highest UV values occur from January to April, peaking at 16, indicating these months as high-risk for sunburn with a rapid burn time of just 10 minutes. Although values drop slightly in the summer, they remain elevated, making May to August also critical months for sun safety, with UV Index readings around 11 to 13. As the year progresses into September through December, the Index fluctuates between 13 to 14, still warranting careful sun protection measures. Visitors and residents are advised to take necessary precautions such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours to minimize the risk of skin damage year-round.
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 |
| Uvinza | 14 | 15 | 16 | 16 | 13 | 11 | 11 | 12 | 14 | 13 | 13 | 14 |
| 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 |