Last updated: June 2, 2025
Understanding the UV Index is vital for residents and visitors of Chala, Tanzania, where high UV exposure can significantly impact skin health and increase the risk of sunburn. With peaks reaching an index of 11 during midday, knowing the daily UV levels is essential for making informed decisions about sun safety. Chala's Cwb climate contributes to a diverse environment, but it also presents unique risks associated with sun exposure. By staying aware of UV levels, you can better protect yourself and your loved ones from harmful effects, ensuring a safer and more enjoyable experience in this beautiful region.
As the day unfolds, the UV Index reveals a striking increase in sun intensity, peaking at a remarkable 11 at 1 PM. Early on, from 7 AM to 9 AM, the levels hover low between 1 and 3, making it a safe time for morning strolls. However, by 10 AM, the index climbs to 5, signaling a need for protection as the sun becomes more potent. The crucial hours follow with the UV index reaching its zenith at 12 PM with a 10, before slightly receding to 7 by 3 PM. As the afternoon wanes, the index descends to 4 at 4 PM and dwindles to a safe 0 by 7 PM, marking the end of the day’s intense solar exposure. Remember, when the sun shines bright, especially around noon, it’s essential to safeguard your skin!
| 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 | 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 |
Throughout the year, UV Index levels remain consistently high, emphasizing the need for vigilance against sun exposure. From January to April, the UV Index remains at an extreme level of 16, posing a significant risk for sunburn within just 10 minutes of unprotected exposure. As we transition into May and June, while the index lowers slightly to 13 and 11, respectively, the threat remains severe, still allowing for burns in 10 minutes. The summer months of July and August see a minor fluctuation to 12 and 13, but the risk persists. In the fall months of September to November, the UV Index ranges from 14 to 14, maintaining the extreme classification. Finally, December sees a slight increase to 15. Therefore, it is crucial for both visitors and residents to take proactive measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during these high-risk months, to minimize the risk of skin damage from intense 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 |
| Arusha UVI | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 14 |
| Chala | 16 | 16 | 16 | 16 | 13 | 11 | 12 | 13 | 14 | 14 | 14 | 15 |
| Mbeya UVI | 16 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 14 | 15 |