Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Santiago de Chuco, Peru, where the unique BSk climate can lead to varying sun exposure risks throughout the day. Knowledge of UV levels helps in preventing sunburn and protecting skin health, especially during peak hours when the index reaches a staggering 13 around noon. With UV levels surging from 2 in the morning to a maximum of 11 and 13 midday, staying informed enables individuals to take necessary precautions, ensuring that their outdoor activities are both enjoyable and safe. Embrace the sun responsibly by being aware of the UV Index!
The hourly UV Index reveals a dramatic increase in sun exposure as the day progresses. Starting from a modest 1 at 07:00, the index rapidly climbs, hitting 2 by 08:00 and reaching a peak of 13 between 12:00 and 13:00. The midday sun is particularly intense, registering an 11 at 11:00 and 13 at noon, emphasizing the necessity for sun protection. As the afternoon unfolds, the UV Index gradually declines, dipping to 10 at 14:00, followed by a steady drop to 6 by 15:00. By the evening hours, values return to a safer range, with 3 at 16:00, and a minimal 1 by 17:00, ultimately falling to 0 by 19:00. This data underscores the importance of being cautious during peak sunlight hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | 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 |
Throughout the year, UV Index levels remain consistently extreme, with monthly readings ranging from 12 to 18. The highest values are observed from March to May, marking these months as particularly high-risk for sun exposure. Despite a slight decrease in June through August, the UV exposure remains significant, with indices of 12 to 13. As the year progresses, UV levels stabilize around 16 from September to December. Visitors and residents are strongly advised to take precautionary measures, including wearing protective clothing, applying high-SPF sunscreen, and limiting direct sun exposure, especially during the peak months of March to May. Always be mindful of burn times, which are as short as 10 minutes regardless of the month, highlighting the importance of vigilant sun safety practices year-round.
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 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |
| Santiago de Chuco | 17 | 17 | 18 | 17 | 14 | 12 | 13 | 13 | 16 | 16 | 16 | 16 |