Last updated: August 1, 2025
In Santa Rita de Siguas, Peru, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike make informed decisions about sun safety, particularly during the peak hours when the index reaches a maximum of 10 at midday. Given the region's arid BWk climate, characterized by strong sunlight and high UV exposure, it's essential to stay vigilant about sun protection to mitigate the risks associated with harmful UV radiation. Whether you're enjoying the outdoors or going about your daily activities, knowing the UV Index can help you protect your skin and enjoy a healthier lifestyle.
In the early hours of the day, the UV Index starts low, peaking at 1 at 07:00 before gradually rising as the sun climbs higher in the sky. By 10:00, it reaches a noteworthy 8, escalating to its maximum level of 10 at 11:00 and 12:00—the prime hours for sun exposure. As the afternoon progresses, the index begins to decline: 9 at 13:00, followed by a drop to 7 at 14:00. The late afternoon sees it further decrease, with values falling to 4 at 15:00 and down to 1 by 17:00. Finally, the UV Index falls to 0 after 18:00, marking the end of a sun-drenched day. Keep in mind, when the UV Index is high, it's crucial to protect your skin!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 |
Throughout the year, the UV Index experiences significant fluctuations, with high-risk months identified from January to April, and again in August to October, where the UV Index consistently measures between 12 and 17, categorized as extreme. During these months, the burn time is a mere 10 minutes, highlighting the urgent need for protective measures against sun exposure. Even in the summer months of June and July, the index remains high (9 to 10) with increased burn times of 15 minutes, indicating that caution is still essential. Visitors and residents are advised to apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours to minimize the risk of 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 |
| Santa Rita de Siguas | 17 | 17 | 16 | 14 | 12 | 9 | 10 | 13 | 14 | 17 | 17 | 17 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |