Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Bretana, Peru, a region characterized by its warm Af climate that often leads to heightened sun exposure. By staying informed about UV levels, you can take proactive steps to prevent sunburn and protect your skin health. In Bretana, the UV Index can soar to levels as high as 11 during midday hours, which indicates an increased risk of harm from unprotected sun exposure. Being aware of these UV levels is not just about enjoying the sun safely; it's about fostering long-term well-being in a place where sunlight is a daily companion.
The UV Index today shows a striking progression through the hours. Starting the day with a mild 1 at 07:00, it quickly ramps up to 3 by 08:00, indicating that sun exposure is starting to become relevant. By 09:00, it reaches 5, marking the beginning of a more intense sun experience. The 10:00 hour brings a sharp increase to 8, while 11:00 and 12:00 peak at an impressive 11—signifying a very high risk of harm from unprotected sun exposure. As the afternoon continues, the index gradually dips, dropping to 10 at 13:00, then sliding to 8 by 14:00, before decreasing further to 4 at 15:00. The sun’s intensity wanes into the evening, falling to 2 at 16:00, and finally reaching 1 by 17:00. By 18:00 and beyond, the UV Index falls to 0, offering a reprieve from the sun’s rays as the day concludes. Always remember to stay protected during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences extreme levels throughout the year, with consistently high readings from January to April (ranging from 15 to 16) and only slightly lower values during May to July (11 to 13). The high-risk months extend from January to April, where the UV Index remains at its peak, and even later months like August to October still show considerable risk. Visitors and residents are strongly advised to take precautions during these months by wearing sunscreen, protective clothing, and seeking shade during peak hours. With a uniform burn time of just 10 minutes across all months, it is crucial to remain vigilant to prevent skin damage throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Callao UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Lima UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Trujillo UVI | 15 | 15 | 15 | 14 | 12 | 11 | 11 | 11 | 13 | 14 | 14 | 14 |
| Chiclayo UVI | 14 | 15 | 15 | 14 | 13 | 11 | 11 | 12 | 15 | 14 | 14 | 13 |
| Bretana | 15 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 13 | 13 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |